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Articles 511 - 540 of 2359

Full-Text Articles in Chemical Engineering

Electrospun Fiber Scaffolds For Engineering Glial Cell Behavior To Promote Neural Regeneration, Devan L. Puhl, Jessica L. Funnell, Derek W. Nelson, Manoj K. Gottipati, Ryan J. Gilbert Jan 2021

Electrospun Fiber Scaffolds For Engineering Glial Cell Behavior To Promote Neural Regeneration, Devan L. Puhl, Jessica L. Funnell, Derek W. Nelson, Manoj K. Gottipati, Ryan J. Gilbert

Chemical and Biochemical Engineering Faculty Research & Creative Works

Electrospinning is a fabrication technique used to produce nano-or micro-diameter fibers to generate biocompatible, biodegradable scaffolds for tissue engineering applications. Electro spun fiber scaffolds are advantageous for neural regeneration because they mimic the structure of the nervous system extracellular matrix and provide contact guidance for regenerating axons. Glia are non-neuronal regulatory cells that maintain homeostasis in the healthy nervous system and regulate regeneration in the injured nervous system. Electro spun fiber scaffolds offer a wide range of characteristics, such as fiber alignment, diameter, surface nano topography, and surface chemistry that can be engineered to achieve a desired glial cell response …

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Evaluation Of Robust Epoxy Resin Sealants For Wellbore Integrity Applications, Mohammed Mousa M Alkhamis Jan 2021

Evaluation Of Robust Epoxy Resin Sealants For Wellbore Integrity Applications, Mohammed Mousa M Alkhamis

Doctoral Dissertations

"During the drilling and completion phases of oil and gas wells, cement is placed in the wellbore as a barrier between the casing and the formation. All casing strings must be cemented to protect and support the casing, and to isolate production zones. The primary cement must prevent the wellbore fluids from migrating in an annular flow path so as to allow the wells to be utilized without any control problems. The primary cement may fail to deliver full zonal isolation due to several reasons such as insufficient mud removal before the cementing, casing expansion, and contraction, high fluid losses, …

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3d-Printed Adsorbents For Gas Separations: A Material Development, Kinetic Assessment, And Process Performance Investigation, Shane Lawson Jan 2021

3d-Printed Adsorbents For Gas Separations: A Material Development, Kinetic Assessment, And Process Performance Investigation, Shane Lawson

Doctoral Dissertations

“Adsorbent materials are promising for various gas purification processes, however, forming them into structured contactors is paramount in enhancing mass transfer properties and reducing pressure losses. In this research, various adsorbents were engineered into structured contactors with 3D printing. The overall goal of this research was to improve the formulation methods of 3D-printed adsorbents and understand their performances in gas separation processes. The specific objectives were to 1) develop new adsorbent 3D-printing strategies, 2) understand the kinetic properties of printed adsorbent monoliths, and 3) assess their process performances. Objective one was addressed by developing five 3D printing techniques: i) oxide …

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Cyclic Sequential Adsorption Desorption/Thermal-Catalytic Oxidation Of Volatile Organic Compounds: Material Development, Process Advancement/Improvement, And Numerical Modeling, Simulation And Optimization, Busuyi Ojo Adebayo Jan 2021

Cyclic Sequential Adsorption Desorption/Thermal-Catalytic Oxidation Of Volatile Organic Compounds: Material Development, Process Advancement/Improvement, And Numerical Modeling, Simulation And Optimization, Busuyi Ojo Adebayo

Doctoral Dissertations

"Volatile organic compounds (VOCs) are a group of useful organic chemicals but when emitted have contributed to air pollution. They affect human health, cause environmental degradation and contaminate our waters and soils, so they need to be controlled. When they exist in dilute concentrations, abatement becomes challenging, thus requiring advanced abatement methods, e.g., sequential adsorption desorption/thermal-catalytic oxidation process. The overall goal of this research was to abate dilute streams of VOCs via the process. The specific objectives were to 1) develop novel adsorbent/catalyst dual-function materials (DFMs) for the process, 2) improve the operability of a one-bed-one-column reactor configuration for the …

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Investigation Of Packed Bed And Moving Bed Reactors With Benchmarking Using Advanced Measurement And Computational Techniques, Binbin Qi Jan 2021

Investigation Of Packed Bed And Moving Bed Reactors With Benchmarking Using Advanced Measurement And Computational Techniques, Binbin Qi

Doctoral Dissertations

"Trickle bed reactors (TBR), as typical packed bed reactors (PBR), are widely used in various fields. Very limited information regarding the flow behaviors, hydrodynamic, and mathematical models in extrudate catalyst shapes, such as cylinders, trilobes, and quadrilobes, can be found in literatures because the major focus was on spherical shape. Therefore, a hybrid pressure drops and liquid holdup phenomenological model for extrudate catalyst shapes was developed based on two-phase volume averaged equations, which showed high accuracy against experimental data. The maldistribution and dynamic liquid holdup were investigated in quadrilobe catalyst using gamma-ray computed tomography. A pseudo-3D empirical model was developed …

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Enhanced Heavy Oil Recovery By Low Salinity Polymer Flood Combined With Microgel Treatment, Yang Zhao Jan 2021

Enhanced Heavy Oil Recovery By Low Salinity Polymer Flood Combined With Microgel Treatment, Yang Zhao

Doctoral Dissertations

“Heavy oil resources account for a large portion of the total oil reserves around the world. The target heavy oil reservoir is located on Alaska’s North Slope (ANS). Advantages of low-salinity HPAM polymer (LSP) over high-salinity polymer (HSP) were demonstrated. LSP could recover more oil with 40% less polymer consumption. No additional oil was recovered by HSP after LSP flood. The first-ever polymer flood pilot on ANS showed remarkable success regarding water cut reduction, oil production increase, delayed breakthrough, and projected oil recovery improvement. Polymer alone was insufficient to achieve satisfactory recovery as the reservoirs were highly heterogeneous. Microgels could …

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Aldosterone Up-Regulates Voltage-Gated Potassium Currents And Nkcc1 Protein Membrane Fractions, Parveen Bazard, Bo Ding, Harish K. Chittam, Xiaoxia Zhu, Thomas A. Parks, Thomas E. Taylor-Clark, Venkat R. Bhethanabotla, Robert D. Frisina, Joseph P. Walton Dec 2020

Aldosterone Up-Regulates Voltage-Gated Potassium Currents And Nkcc1 Protein Membrane Fractions, Parveen Bazard, Bo Ding, Harish K. Chittam, Xiaoxia Zhu, Thomas A. Parks, Thomas E. Taylor-Clark, Venkat R. Bhethanabotla, Robert D. Frisina, Joseph P. Walton

Chemical and Biochemical Engineering Faculty Research & Creative Works

Na+–K+–2Cl− Cotransporter (NKCC1) is a protein that aids in the active transport of sodium, potassium, and chloride ions across cell membranes. It has been shown that long-term systemic treatment with aldosterone (ALD) can enhance NKCC1 protein expression and activity in the aging cochlea resulting in improved hearing. In the present work, we used a cell line with confirmed NKCC1 expression to demonstrate that in vitro application of ALD increased outward voltage-gated potassium currents significantly, and simultaneously upregulated whole lysate and membrane portion NKCC1 protein expression. These ALD-induced changes were blocked by applying the mineralocorticoid receptor antagonist eplerenone. However, application of …

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Utilizing A New Eco-Friendly Drilling Mud Additive Generated From Wastes To Minimize The Use Of The Conventional Chemical Additives, Abo Taleb T. Al-Hameedi, Husam H. Alkinani, Mohammed M. Alkhamis, Shari Dunn-Norman Dec 2020

Utilizing A New Eco-Friendly Drilling Mud Additive Generated From Wastes To Minimize The Use Of The Conventional Chemical Additives, Abo Taleb T. Al-Hameedi, Husam H. Alkinani, Mohammed M. Alkhamis, Shari Dunn-Norman

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

The cost of the drilling operation is very high. Drilling fluid presents 15 to 30% of the entire expense of the drilling process. Ordinarily, the major drilling fluids additives are viscosity modifiers, filtration control agents, and partial loss treatments. In this experimental work, full-set measurements under fresh and aged conditions, as well as high-temperature and high-pressure (HTHP) API filtration, were conducted to study the impacts of adding 0.5%, 1.5%, 2.5%, and 3.5% of black sunflower seeds’ shell powder (BSSSP) to spud mud. BSSSP of various grain sizes showed their ability to be invested for viscosity modifying, seepage loss controlling, and …

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Calcium Sulfate-Containing Glass Polyalkenoate Cement For Revision Total Knee Arthroplasty Fixation, Leyla Hasandoost, Adel Alhalawani, Omar Rodriguez, Alireza Rahimnejad Yazdi, Paul Zalzal, Emil H. Schemitsch, Stephen D. Waldman, Marcello Papini, Mark R. Towler Nov 2020

Calcium Sulfate-Containing Glass Polyalkenoate Cement For Revision Total Knee Arthroplasty Fixation, Leyla Hasandoost, Adel Alhalawani, Omar Rodriguez, Alireza Rahimnejad Yazdi, Paul Zalzal, Emil H. Schemitsch, Stephen D. Waldman, Marcello Papini, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

Poly (methyl methacrylate) (PMMA) bone cement is used as a minor void filler in revision total knee arthroplasty (rTKA). The application of PMMA is indicated only for peripheral bone defects with less than 5 mm depth and that cover less than 50% of the bone surface. Treating bone defects with PMMA results in complications as a result of volumetric shrinkage, bone necrosis, and aseptic loosening. These concerns have driven the development of alternative bone cements. We report here on novel modified glass polyalkenoate cements (mGPCs) containing 1, 5 and 15 wt% calcium sulfate (CaSO4) and how the modified …

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Data–Driven Decision–Making For Lost Circulation Treatments: A Machine Learning Approach, Husam H. Alkinani, Abo Taleb T. Al-Hameedi, Shari Dunn-Norman Nov 2020

Data–Driven Decision–Making For Lost Circulation Treatments: A Machine Learning Approach, Husam H. Alkinani, Abo Taleb T. Al-Hameedi, Shari Dunn-Norman

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Lost circulation is an expensive and critical problem in the drilling operations. Millions of dollars are spent every year to mitigate or stop this problem. In this work, data from over 3000 wells were collected from multiple sources. The data went through a processing step where all outliers were removed, and decision rules were set up. Multiple machine learning methods (support vector machine, decision trees, logistic regression, artificial neural networks, and ensemble trees) were used to create a model that can predict the best lost circulation treatment based on the type of loss and the reason of loss. 5-fold cross-validation …

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Preparation And Analysis Of Cement Bricks Based On Rice Straw, Hend Ahmed, Ibrahim M. Ibrahim, M. A. Radwan, M. A. Sadek, Hany A. Elazab Oct 2020

Preparation And Analysis Of Cement Bricks Based On Rice Straw, Hend Ahmed, Ibrahim M. Ibrahim, M. A. Radwan, M. A. Sadek, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

In Egypt, rice straw is burnt as an easy and the cheap method to get rid of it leads to making a giant black cloud covers Cairo and southern delta governorates. Main purpose of this research is to produce green brick of cement and in-expensive agriculture waste (rice straw) with law price and good characteristics of thermal insulation and acoustic resistance. Different samples of cement brick based on rice straw of many percentages were prepared. First, select best mixture of concrete brick before adding rice straw after preparing and leave for curing time. Then, rice straw is added with various …

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A Simplified Method For Experimentally Quantifying Crude Oil Swelling During Immiscible Carbon Dioxide Injection, Sherif Fakher, Abdulmohsin Imqam Oct 2020

A Simplified Method For Experimentally Quantifying Crude Oil Swelling During Immiscible Carbon Dioxide Injection, Sherif Fakher, Abdulmohsin Imqam

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Immiscible carbon dioxide (CO2) injection is one of the highly applied enhanced oil recovery (EOR) methods due to its high oil recovery potential and its ability to store CO2 in the reservoir. The main mechanism of immiscible CO2 injection is oil swelling. Generally, oil swelling is measured experimentally or measured using modeling methods. This research conducts oil swelling experiments using a simplified method in order to easily and accurately measure oil swelling and determines some of the most significant factors that may impact oil swelling during CO2 injection. The impact of varying CO2 injection …

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Hybrid Electro-Plasmonic Neural Stimulation With Visible-Light-Sensitive Gold Nanoparticles, Ratka Damnjanovic, Parveen Bazard, Robert D. Frisina, Venkat R. Bhethanabotla Sep 2020

Hybrid Electro-Plasmonic Neural Stimulation With Visible-Light-Sensitive Gold Nanoparticles, Ratka Damnjanovic, Parveen Bazard, Robert D. Frisina, Venkat R. Bhethanabotla

Chemical and Biochemical Engineering Faculty Research & Creative Works

Biomedical prosthetics utilizing electrical stimulation have limited, effective spatial resolution due to spread of electrical currents to surrounding tissue, causing nonselective stimulation. So, precise spatial resolution is not possible for traditional neural prosthetic devices, such as cochlear implants. More recently, alternative methods utilize optical stimulation, mainly infrared, sometimes paired with nanotechnology for stimulating action potentials. Infrared stimulation has its own drawbacks, as it may cause collateral heating of surrounding tissue. In previous work, we employed a plasmonic method for stimulation of an electrically excitable neuroblastoma cell line, which had limited success. Here, we report the development of a hybrid electro-plasmonic …

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Nanoparticle Catalyzed Hydrodesulfurization Of Diesel Fuel In A Trickle Bed Reactor: Experimental And Optimization Study, Saba A. Gheni, Saad A. Awad, Safaa M. R. Ahmed, Ghassan Abdullah, Muthanna H. Al-Dahhan Sep 2020

Nanoparticle Catalyzed Hydrodesulfurization Of Diesel Fuel In A Trickle Bed Reactor: Experimental And Optimization Study, Saba A. Gheni, Saad A. Awad, Safaa M. R. Ahmed, Ghassan Abdullah, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

This work focuses on the preparation, simulation, and optimization of the hydrodesulfurization (HDS) of dibenzothiophene (DBT) using a nanocatalyst. A homemade nanocatalyst (3 percent Co, 10 percent Mo/γ-Al2O3 nanoparticles) was used in a trickle bed reactor (TBR). The HDS kinetic model was estimated based on experimental observations over ranges of operating conditions to evaluate kinetic parameters of the HDS process and apply the key parameters. Based on these parameters, the performance of the TBR catalyzed by the nanocatalyst was evaluated and scaled up to a commercial scale. Also, the selectivity of HDS reactions was also modeled to …

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Mathematical Modeling And Pointwise Validation Of A Spouted Bed Using An Enhanced Bed Elasticity Approach, Sebastián Uribe, Binbin Qi, Omar Farid, Muthanna H. Al-Dahhan Sep 2020

Mathematical Modeling And Pointwise Validation Of A Spouted Bed Using An Enhanced Bed Elasticity Approach, Sebastián Uribe, Binbin Qi, Omar Farid, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

With a Euler-Euler (E2P) approach, a mathematical model for predicting the pointwise hydrodynamic behavior of a spouted bed was implemented though computational fluid dynamics (CFD) techniques. The model considered a bed elasticity approach in order to reduce the number of required sub-models to provide closure for the solids stress strain-tensor. However, no modulus of elasticity sub-model for a bed elasticity approach has been developed for spouted beds, and thus, large deviations in the predictions are obtained with common sub-models reported in literature. To overcome such a limitation, a new modulus of elasticity based on a sensitivity analysis was developed and …

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Drug-Loaded Chitosan Film Prepared Via Facile Solution Casting And Air-Drying Of Plain Water-Based Chitosan Solution For Ocular Drug Delivery, Boxuan Li, Juan Wang, Qin Gui, Hu Yang Sep 2020

Drug-Loaded Chitosan Film Prepared Via Facile Solution Casting And Air-Drying Of Plain Water-Based Chitosan Solution For Ocular Drug Delivery, Boxuan Li, Juan Wang, Qin Gui, Hu Yang

Chemical and Biochemical Engineering Faculty Research & Creative Works

Chitosan is a nature-based polymer with low toxicity, excellent biocompatibility and biodegradability. However, the intractable solubility of chitosan in water and most conventional solvents hampers its biomedical applications. Following the dissolution method for dissolving chitosan in plain water developed by us, chitosan was dissolved in ionic liquid followed by overnight freezing at −20 °C and subsequent solvent exchange with plain water at room temperature. In this study, we fabricated a drug-carrying chitosan film via solution casting and air-drying by using the plain water-based chitosan solution. Specifically, brimonidine tartrate (BT), an antiglaucoma drug, was dissolved in the plain-water based solution and …

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Aligned Fingolimod-Releasing Electrospun Fibers Increase Dorsal Root Ganglia Neurite Extension And Decrease Schwann Cell Expression Of Promyelinating Factors, Devan L. Puhl, Jessica L. Funnell, Anthony R. D'Amato, Jonathan Bao, Dmitri V. Zagorevski, Yelena Pressman, Daniel Morone, Agnes E. Haggerty, Martin Oudega, Ryan J. Gilbert Aug 2020

Aligned Fingolimod-Releasing Electrospun Fibers Increase Dorsal Root Ganglia Neurite Extension And Decrease Schwann Cell Expression Of Promyelinating Factors, Devan L. Puhl, Jessica L. Funnell, Anthony R. D'Amato, Jonathan Bao, Dmitri V. Zagorevski, Yelena Pressman, Daniel Morone, Agnes E. Haggerty, Martin Oudega, Ryan J. Gilbert

Chemical and Biochemical Engineering Faculty Research & Creative Works

Researchers are investigating the use of biomaterials with aligned guidance cues, like those provided by aligned electro spun fibers, to facilitate axonal growth across critical-length peripheral nerve defects. To enhance the regenerative outcomes further, these aligned fibers can be designed to provide local, sustained release of therapeutics. The drug fingolimod improved peripheral nerve regeneration in preclinical rodent models by stimulating a pro-regenerative Schwann cell phenotype and axonal growth. However, the systemic delivery of fingolimod for nerve repair can lead to adverse effects, so it is necessary to develop a means of providing sustained delivery of fingolimod local to the injury. …

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A Comparison Study Using Particle Swarm Optimization Inversion Algorithm For Gravity Anomaly Interpretation Due To A 2d Vertical Fault Structure, Neil Lennart Anderson, Khalid S. Essa, Mahmoud Elhussein Aug 2020

A Comparison Study Using Particle Swarm Optimization Inversion Algorithm For Gravity Anomaly Interpretation Due To A 2d Vertical Fault Structure, Neil Lennart Anderson, Khalid S. Essa, Mahmoud Elhussein

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

A new approach to the inversion of gravity data utilizing the Particle Swarm Optimization (PSO) algorithm is used to model 2D vertical faults. The PSO algorithm is stochastic in nature; its development was motivated by the communal in-flight performance of birds looking for food. The birds are represented by particles (or models). Individual particles have a location and a velocity vector. The location vectors represent the parameter value. PSO is adjusted with random particles (models) and searches for targets by updating generations. Herein, the PSO algorithm is applied to three synthetic data sets (residual only with and without noise, residual …

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The Kinetic Study Of Dpt Using Mathematica As An Efficient Optimization Tool, M. H. El Dewaik, Mamdouh Gadalla, M. A. Radwan, M. A. Sadek, Hany A. Elazab Aug 2020

The Kinetic Study Of Dpt Using Mathematica As An Efficient Optimization Tool, M. H. El Dewaik, Mamdouh Gadalla, M. A. Radwan, M. A. Sadek, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

Mathematica is a powerful program for computing both numeric and algebraic calculations as well as graphing two- and three-dimensional curves and surfaces. It is used increasingly in many fields of science now such as physics, engineering, chemistry and even biology because of the fast interaction of mathematics with almost the fields of science nowadays. Synthesis of Cyclotetramethylene Tetramine through the action of nitrating mixture formed of ammonium nitrate and fuming nitric acid on hexamine in presence of acetic acid, acetic anhydride and p-formaldehyde has been proven. The pathway is relatively long and Hexamine Dinitrate and Dinitro Pentamethylene Tetramine (DPT) are …

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A Review Of The Latest Insights Into The Mechanism Of Action Of Strontium In Bone, Daniella Marx, Alireza Rahimnejad Yazdi, Marcello Papini, Mark R. Towler Jun 2020

A Review Of The Latest Insights Into The Mechanism Of Action Of Strontium In Bone, Daniella Marx, Alireza Rahimnejad Yazdi, Marcello Papini, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

Interest in strontium (Sr) has persisted over the last three decades due to its unique mechanism of action: it simultaneously promotes osteoblast function and inhibits osteoclast function. While this mechanism of action is strongly supported by in vitro studies and small animal trials, recent large-scale clinical trials have demonstrated that orally administered strontium ranelate (SrRan) may have no anabolic effect on bone formation in humans. Yet, there is a strong correlation between Sr accumulation in bone and reduced fracture risk in post-menopausal women, suggesting Sr acts via a purely physiochemical mechanism to enhance bone strength. Conversely, the local administration of …

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The Role Of Poly(Methyl Methacrylate) In Management Of Bone Loss And Infection In Revision Total Knee Arthroplasty: A Review, Leyla Hasandoost, Omar Rodriguez, Adel Alhalawani, Paul Zalzal, Emil H. Schemitsch, Stephen D. Waldman, Marcello Papini, Mark R. Towler Jun 2020

The Role Of Poly(Methyl Methacrylate) In Management Of Bone Loss And Infection In Revision Total Knee Arthroplasty: A Review, Leyla Hasandoost, Omar Rodriguez, Adel Alhalawani, Paul Zalzal, Emil H. Schemitsch, Stephen D. Waldman, Marcello Papini, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

Poly (methyl methacrylate) (PMMA) is widely used in joint arthroplasty to secure an implant to the host bone. Complications including fracture, bone loss and infection might cause failure of total knee arthroplasty (TKA), resulting in the need for revision total knee arthroplasty (rTKA). The goals of this paper are: (1) to identify the most common complications, outside of sepsis, arising from the application of PMMA following rTKA, (2) to discuss the current applications and drawbacks of employing PMMA in managing bone loss, (3) to review the role of PMMA in addressing bone infection following complications in rTKA. Papers published between …

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Flow Of Carbon Dioxide In Micro And Nano Pores And Its Interaction With Crude Oil To Induce Asphaltene Instability, Sherif Fakher, Abdulmohsin Imqam Jun 2020

Flow Of Carbon Dioxide In Micro And Nano Pores And Its Interaction With Crude Oil To Induce Asphaltene Instability, Sherif Fakher, Abdulmohsin Imqam

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

This study presents an investigation of the flow mechanism of carbon dioxide (CO2) through nano and micro pores and the impact of this flow on oil mobilization and asphaltene instability in the crude oil. The flow mechanism of CO2 is determined using numerical modeling through the Knudsen number to determine the flow regimes under different thermodynamic conditions. Following this, the oil production and asphaltene stability are studied using a filtration vessel supplemented with nano and micron sized filter membranes. The effect of varying CO2 injection pressure, oil viscosity, porous media pore size, and porous media thickness …

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An Experimental Investigation Of Asphaltene Stability In Heavy Crude Oil During Carbon Dioxide Injection, Sherif Fakher, Mohamed Ahdaya, Mukhtar Elturki, Abdulmohsin Imqam Jun 2020

An Experimental Investigation Of Asphaltene Stability In Heavy Crude Oil During Carbon Dioxide Injection, Sherif Fakher, Mohamed Ahdaya, Mukhtar Elturki, Abdulmohsin Imqam

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Carbon dioxide (CO2) injection is one of the most applied enhanced oil recovery methods in the hydrocarbon industry, since it has the potential to increase oil recovery significantly and can help reduce greenhouse gases through carbon storage in hydrocarbon reservoirs. Carbon dioxide injection has a severe drawback, however, since it induces asphaltene precipitation by disrupting the asphaltene stability in crude oil that bears even the slightest asphaltene concentration. This can result in severe operational problems, such as reservoir pore plugging and wellbore plugging. This research investigates some of the main factors that impact asphaltene stability in crude oil …

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Assessing The Removal Of Heavy Metals Using Emerging And Intensifying Technology Of Emulsion Liquid Membrane With Ionic Liquid, Qusay Al-Obaidi, Jasmine Monroe, Hannah Smith, Zaid Haha, Muthanna H. Al-Dahhan May 2020

Assessing The Removal Of Heavy Metals Using Emerging And Intensifying Technology Of Emulsion Liquid Membrane With Ionic Liquid, Qusay Al-Obaidi, Jasmine Monroe, Hannah Smith, Zaid Haha, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

(Pb(II)) is one of the heavy metals compounds founds in the industrial wastes that needs to be removed from treated wastewater. Emulsion liquid membrane (ELM) has been introduced as an emerging technology for advanced wastewater and water treatment. This emerging technology of treatment can be intensified by strategically adding the hydrophobic ionic liquid of [OMIM][PF6] and ({[BMIM]+ [NTf2]-) ionic liquid to organic membrane phase (O) to facilitate the industrial implementation of ELM with ionic liquid. The results show that with the use of 5% (V/V) [OMIM][PF6] ionic liquid has increased the removal efficiency to 70.37% in reaction …

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Zeolite Monolith Compositions And Methods For The Catalytic Cracking Of Alkanes, Ali A. Rownaghi, Xin Li, Fateme Rezaei Apr 2020

Zeolite Monolith Compositions And Methods For The Catalytic Cracking Of Alkanes, Ali A. Rownaghi, Xin Li, Fateme Rezaei

Chemical and Biochemical Engineering Faculty Research & Creative Works

Porous zeolite monolith compositions for the catalytic cracking of alkanes. The compositions may be prepared layer by layer using a 3D printer such that the compositions comprise a plurality of micropores and a plurality of mesopores and may be characterized by macro-meso-microporosity.

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Coating Topologically Complex Electrospun Fibers With Nanothin Silk Fibroin Enhances Neurite Outgrowth In Vitro, Alexis M. Ziemba, Tanner D. Fink, Mary Clare Crochiere, Devan L. Puhl, Samichya Sapkota, Ryan J. Gilbert, R. Helen Zha Mar 2020

Coating Topologically Complex Electrospun Fibers With Nanothin Silk Fibroin Enhances Neurite Outgrowth In Vitro, Alexis M. Ziemba, Tanner D. Fink, Mary Clare Crochiere, Devan L. Puhl, Samichya Sapkota, Ryan J. Gilbert, R. Helen Zha

Chemical and Biochemical Engineering Faculty Research & Creative Works

Electro spun poly-l-lactic acid (PLLA) fibers are commonly used for tissue engineering applications because of their uniform morphology, and their efficacy can be further enhanced via surface modification. In this study, we aimed to increase neurite outgrowth along electro spun fibers by coating with silk fibroin (SF), a bioinert protein derived from Bombyx mori cocoon threads, shown to be neuro compatible. Aligned PLLA fibers were electro spun with smooth, pitted, and devoted surface nano topographies and coated with SF by immersion in coating solution for either 12 or 24 h. Specifically, thin-film coatings of SF were generated by leveraging the …

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Re-Crosslinking Particle Gel For Co₂ Conformance Control And Co₂ Leakage Blocking, Yifu Long, Baojun Bai, Thomas P. Schuman Mar 2020

Re-Crosslinking Particle Gel For Co₂ Conformance Control And Co₂ Leakage Blocking, Yifu Long, Baojun Bai, Thomas P. Schuman

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

The present invention generally relates to the composition of particle gels for CO2-EOR and CO2 storage. More particularly, CO2 resistant particle gels are provided that can re-crosslink at subterranean conditions. These particle gels can be deployed to improve the conformance of CO2 flooding, CO2 huff-puff, or Water-Alternative-Gas (WAG). The applications may also involve CO2 storage, such as the blocking of CO2 leakage and similar CO2 processing.

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Critical Review Of Asphaltene Properties And Factors Impacting Its Stability In Crude Oil, Sherif Fakher, Mohamed Ahdaya, Mukhtar Elturki, Abdulmohsin Imqam Mar 2020

Critical Review Of Asphaltene Properties And Factors Impacting Its Stability In Crude Oil, Sherif Fakher, Mohamed Ahdaya, Mukhtar Elturki, Abdulmohsin Imqam

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Asphaltene is a component of crude oil that has been reported to cause severe problems during production and transportation of the oil from the reservoir. It is a solid component of the oil that has different structures and molecular makeup which makes it one of the most complex components of the oil. This research provides a detailed review of asphaltene properties, characteristics, and previous studies to construct a guideline to asphaltene and its impact on oil recovery. The research begins with an explanation of the main components of crude oil and their relation to asphaltene. The method by which asphaltene …

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Insights Into The Applications Of Waste Materials In The Oil And Gas Industry: State Of The Art Review, Availability, Cost Analysis, And Classification, Abo Taleb T. Al-Hameedi, Husam H. Alkinani, Hussein W. Albazzaz, Shari Dunn-Norman, Mohammed M. Alkhamis Mar 2020

Insights Into The Applications Of Waste Materials In The Oil And Gas Industry: State Of The Art Review, Availability, Cost Analysis, And Classification, Abo Taleb T. Al-Hameedi, Husam H. Alkinani, Hussein W. Albazzaz, Shari Dunn-Norman, Mohammed M. Alkhamis

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

This study investigates different types of waste materials and their applicability in the oil and gas industry as well as analyzing various applications of these waste materials in the petroleum industry. This study also explores the availability of these waste materials by performing a statistical analysis in a good number of countries worldwide. The statistical study was performed starting with a study on which countries generate waste the most overall, followed by examining multiple countries and investigating their top three most available waste. The results showed that the USA is the leading country in terms of municipal solid waste generation …

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A Data Analysis Of Immiscible Carbon Dioxide Injection Applications For Enhanced Oil Recovery Based On An Updated Database, Sherif Fakher, Abdulmohsin Imqam Mar 2020

A Data Analysis Of Immiscible Carbon Dioxide Injection Applications For Enhanced Oil Recovery Based On An Updated Database, Sherif Fakher, Abdulmohsin Imqam

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Carbon dioxide (CO2) injection is an enhanced oil recovery technique used worldwide to increase oil recovery from hydrocarbon reservoirs. Immiscible CO2 injection involves injecting the CO2 into the reservoir at a pressure below which it will become miscible in the oil. Even though immiscible CO2 injection has been applied extensively, very little research has been conducted to provide a comprehensive understanding of the mechanism and the applications of immiscible CO2 injection. This research performs an in-depth data analysis is performed based on more than 200 experiments and 20 field tests from more than 40 …

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