Chemical Engineering Commons^™

Residual Trapping Of Co2 And Enhanced Oil Recovery In Oil-Wet Sandstone Core – A Three-Phase Pore-Scale Analysis Using Nmr, Auby Baban, Alireza Keshavarz, Robert Amin, Stefan Iglauer

Research outputs 2022 to 2026

Hypothesis: Combining Carbon Geo-sequestration (CGS) with Enhanced Oil Recovery (EOR) in three-phase flow oil reservoirs is an effective and economically attractive technology to mitigate global warming caused by emission of anthropologic CO2 from fossil fuel combustion, as it offsets some of the costs of CO2 extraction. The targeted oil reservoirs display oil-wet characteristics, primarily because of the strong affinity of polar molecules present in oil; a mixture of a large number of chemical compounds to the rock's surface; and oil-wet surfaces that drastically reduce storage capacity of geological trapping mechanisms and increase the vertical migration of CO2. Thus, it is …

Liquid-Liquid Equilibria Of Water + Ethanol + Castor Oil And The Effect Of Cellulose Nanocrystal/Fe3o4 And Lignin/Fe3o4 Nanoparticles, Mohammad J. Hasan, Fariba Yehaneh, Amy Ciric, Peng Chen, Erick S. Vasquez, Esteban E. Ureña-Benavides

Chemical and Materials Engineering Faculty Publications

Castor oil has been proposed as a renewable solvent for the liquid extraction of ethanol from water as an alternative to more traditional energy intensive distillation-based methods. The liquid–liquid equilibrium (LLE) of the ternary system water + ethanol + castor oil was determined at 295.15 K using high performance liquid chromatography (HPLC). Castor oil was herein treated as a pseudo-component with the molecular weight of the triglyceride of ricinoleic acid. The experimental data was fitted to the UNIQUAC and NRTL models to obtain parameters for castor oil, and binary interaction parameters for castor oil/ethanol and castor oil/water pairs. The separation …

Computational Study Of C-C Coupling Reactions On Heterogeneous Catalysts, Md Saeedur Rahman

LSU Doctoral Dissertations

The utilization of carbon dioxide (CO₂) in chemical production has attracted global research interest. Reacting CO₂ with methane (CH₄) removes these greenhouse gases from the atmosphere and turns both compounds into building blocks for organic compound synthesis. A commonly explored pathway involves dry reforming of methane (DRM), which reacts CH₄ and CO₂ to form syngas, a mixture of H₂ and CO. Syngas is a widely used feedstock for synthesizing chemicals ranging from methanol to fuels via the Fischer-Tropsch (FT) process. However, DRM has a large positive ΔGº, which requires the …

Influence Of Synthesis Conditions On The Physicochemical And Electrocatalytic Properties Of Non-Stoichiometric Ba2sr2la2ti4o12 Perovskites, Ofeliya Kostadinova, Iliyan Popov, Simeon M. Stankov, Hristo Kolev, Tamara Petkov

Karbala International Journal of Modern Science

Present work studies the influence of the pretreatment milling media (deionized water (BLTOS-H) and isopropanol (BLTOS-i)) on the surface characteristics, structure, chemical composition and catalytic activity of non-stoichiometric Ba2Sr2La2Ti4O12 perovskites. The IR spectroscopy and XRD analyses shows a difference in the structure and phase composition of the two materials. X-ray photoelectron spectroscopy detects a Ba2+- and La3+-enriched and Sr2+-depleted surface. The BLTOS-i sample appears to exhibit higher specific surface area (SSA) and pore volume in comparison to BLTOS-H. The electrochemical tests showed that BLTOS-H sample have similar behavior to platinum at current densi-ties up to 10 mA cm-2, while BLTOS-i …

Enhancing Sustainable Process Designs Through Strategic Material Utilization And Waste Minimization Approaches, John David Chea

Theses and Dissertations

Sustainability is a growing concern as resources are continually depleted for various applications without adequate renewal plans. The resulting impacts on the ecosystem, health, and resource circularity are often overlooked. This research analyzes improvement opportunities at each major stage in a product's life cycle. Raw material acquisition, product synthesis, process waste management, and the fate of a material in the end-of-life phases were examined. The viability of utilizing renewable resources has been demonstrated in this work by extracting bio-based chemicals from underutilized renewable resources at a commercial scale and transforming the extracted resources into polymeric materials. The optimization of raw …

Poly(Pro-Curcumin) Materials Exhibit Dual Release Rates And Prolonged Antioxidant Activity As Thin Films And Self-Assembled Particles, Ruiwen Chen, Jessica L. Funnell, Geraldine B. Quinones, Marvin Bentley, Jeffrey R. Capadona, Ryan J. Gilbert, Edmund F. Palermo

Chemical and Biochemical Engineering Faculty Research & Creative Works

Curcumin is a natural polyphenol that exhibits remarkable antioxidant and anti-inflammatory activities; however, its clinical application is limited in part by its physiological instability. Here, we report the synthesis of curcumin-derived polyesters that release curcumin upon hydrolytic degradation to improve curcumin stability and solubility in physiological conditions. Curcumin was incorporated in the polymer backbone by a one-pot condensation polymerization in the presence of sebacoyl chloride and polyethylene glycol (PEG, Mn = 1 kDa). The thermal and mechanical properties, surface wettability, self-assembly behavior, and drug-release kinetics all depend sensitively on the mole percentage of curcumin incorporated in these statistical copolymers. Curcumin …

Figure Data From "Electrochemical Identification Of Metal Chlorides In Eutectic Licl-Kcl Without Prior Knowledge Of Analyte Identities", Tyler Williams, Jason Torrie, Mark Schvaneveldt, Ranon Fuller, Greg Chipman, Devin Rappleye

ScholarsArchive Data

This is the data associated with figures found in a publication by the authors with the name of "Electrochemical Identification of Metal Chlorides in Eutectic LiCl-KCl Without Prior Knowledge of Analyte Identities".

Some of the data saved here is raw data collected by an Autolab potentiostat, while other data was derived from this raw data. Please reach out to the corresponding author for further questions.

Deep Transfer Learning For Approximate Model Predictive Control, Samuel Arce Munoz, Junho Park, Cristina M. Stewart, Adam M. Martin, John Hedengren

Faculty Publications

Transfer learning is a machine learning technique that takes a pre-trained model that has already been trained on a related task, and adapts it for use on a new, related task. This is particularly useful in the context of model predictive control (MPC), where deep transfer learning is used to improve the training of the MPC by leveraging the knowledge gained from related controllers. One way in which transfer learning is applied in the context of MPC is by using a pre-trained deep learning model of the MPC, and then fine-tuning the controller training for a new process automation task. …

Nafion Modified Titanium Nitride Ph Sensor For Future Biomedical Applications, Shimrith Paul Shylendra, Magdalena Wajrak, Kamal Alameh, James Jin Kang

Research outputs 2022 to 2026

pH sensors are increasingly being utilized in the biomedical field and have been implicated in health applications that aim to improve the monitoring and treatment of patients. In this work, a previously developed Titanium Nitride (TiN) solid-state pH sensor is further enhanced, with the potential to be used for pH regulation inside the human body and for other biomedical, industrial, and environmental applications. One of the main limitations of existing solid-state pH sensors is their reduced performance in high redox mediums. The potential shift E⁰ value of the previously developed TiN pH electrode in the presence of oxidizing or …

Engineering At-Home Dilution And Filtration Methods To Enable Paper-Based Colorimetric Biosensing In Human Blood With Cell-Free Protein Synthesis, Tyler J. Free, Ryan W. Tucker, Katelyn M. Simonson, Sydney A. Smith, Caleb M. Lindgren, William G. Pitt, Bradley C. Bundy

Faculty Publications

Diagnostic blood tests can guide the administration of healthcare to save and improve lives. Most clinical biosensing blood tests require a trained technician and specialized equipment to process samples and interpret results, which greatly limits test accessibility. Colorimetric paper-based diagnostics have an equipment-free readout, but raw blood obscures a colorimetric response which has motivated diverse efforts to develop blood sample processing techniques. This work uses inexpensive readily-available materials to engineer user-friendly dilution and filtration methods for blood sample collection and processing to enable a proof-of-concept colorimetric biosensor that is responsive to glutamine in 50 µL blood drop samples in less …

Using Computational Fluid Dynamics And Optical Sensor Technology To Scale Cell Culture Platforms, Mandar Makwana

KGI Theses and Dissertations

Different cell culture vessels ranging from micro scale to laboratory scale to commercial scale play critical role in upstream process development for biologics manufacturing. Based on the mode of operation, cell culture vessels have different hydrodynamic environments, making it challenging to scale. Integrated approaches using computational tools supported by experimental studies can overcome these challenges. Computational Fluid Dynamics (CFD) is one such tool that can simulate hydrodynamics within the cell culture vessels and can provide insights at macro and micro-scale. Accuracy of a CFD model significantly depends on the fluid model and assumptions. Traditionally, simple two-equation fluid models were developed …

Concentration Field Based Micropore Flow Rate Measurements, Matia P. Edwards, Samuel F. D. J. Gómez, Michael S. H. Boutilier

Chemical and Biochemical Engineering Publications

Demand is growing for a larger catalogue of experimental techniques to measure flow rates through micro-/nanoscale systems for both fundamental research and device development. Flow emerging from a hole in a plane wall is a common system of interest in such work for its relevance to membrane separation. In this paper, we consider the possibility of measuring volume flow rates through small scale orifice plates from images of dye dispersions downstream. Based on approximate analytical solutions to the advection–diffusion equation, we show that, at low Reynolds numbers, the concentration in the nearly hemispherical plume that forms increases linearly with inverse …

Comparative Analysis Of Artificial Intelligence And Numerical Reservoir Simulation In Marcellus Shale Wells, Arya Maher Sattari

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation addresses the limitations of conventional numerical reservoir simulation techniques in the context of unconventional shale plays and proposes the use of data-driven artificial intelligence (AI) models as a promising alternative. Traditional methods, while providing valuable insights, often rely on simplifying assumptions and are constrained by time, resources, and data quality. The research leverages AI models to handle the complexities of shale behavior more effectively, facilitating accurate predictions and optimizations with less resource expenditure.

Two specific methodologies are investigated for this purpose: traditional numerical reservoir simulations using Computer Modelling Group's GEM reservoir simulation software, and an AI-based Shale Analytics …

The Effect Of Different Fracturing Fluids On The Productivity Of Multi-Staged Fractured Marcellus Shale Horizontal Wells, Vida Gyaubea Matey-Korley

Graduate Theses, Dissertations, and Problem Reports (ETD)

While hydraulic fracturing has undeniably improved the production from oil and gas reservoirs, this technology is not without limitations. The primary hurdles lie in the areas of proppant transport, fluid rheology, and stress management. Despite the extensive research conducted in this domain, there remains a considerable amount of work to be done for comprehensive solutions that account for the complex interactions among fracturing fluid, proppant distribution, and geomechanical conditions. Achieving this will then make room for a holistic and efficient hydraulic fracturing strategy.

This study addresses the above-mentioned problem by examining the impact of fluid type on proppant transport and …

Recovery Of Valuable Metals From Electronic Waste Using A Novel Ammonia-Based Hydrometallurgical Process, Peijia Lin

Theses and Dissertations--Mining Engineering

The growing quantity of waste electrical and electronic equipment (WEEE), also known as electronic waste (E-waste), has been an area of growing public concern. The abundance of valuable metals contained in waste printed circuit boards (WPCBs) has made it a promising secondary resource, especially for Cu and Au. Although the recovery of metals from WPCBs via hydrometallurgical routes has been studied extensively over the past 20 years, most of the research has been limited in the laboratory. In current hydrometallurgical processes, strong acids and expensive oxidizers are often used to ensure a high recovery of metals without considering the sustainability …

A Process Intensification Approach To Improve Volatile Fatty Acids Production, Extraction, And Valorization, Can Liu

Theses and Dissertations--Biosystems and Agricultural Engineering

Anaerobic digestion (AD) is a widely used biowaste conversion method. Recent studies have explored arrested methanogenesis as an alternative approach to leverage existing AD facilities and produce volatile fatty acids (VFAs) instead of biogas. VFAs have been recognized as precursors for a range of value-added chemicals and bioproducts. Arrested methanogenesis involves inducing acidic fermentation by halting the AD process before methanogenesis. It has been found that higher organic loading and thermophilic conditions enhance VFA accumulation and stabilize the acidic fermentation (AF) system.

Brewer's spent grain (BSG), a significant by-product of the brewing industry, was employed as the feedstock for VFA …

Cyberphysical Systems And Energy: A Discussion With Reference To An Enhanced Geothermal Process, Keshav Kasturi Rangan, Henrique Oyama, Ilham Azali Assoumani, Helen Durand, K.Y. Simon Ng

Chemical Engineering and Materials Science Faculty Research Publications

As cyberphysical systems research advances, energy systems will be able to benefit from the developments. In this section, we discuss several points in two newer areas for cyberphysical systems research in chemical engineering: 1) cybersecurity of process control systems; and 2) quantum computation of control actions. The discussion is presented in a general manner, with relevance to flow systems or under traditional control laws (e.g., proportional control). However, to showcase energy systems relevance, we will provide links, at intervals, between the developments discussed and enhanced geothermal systems with energy production through the Organic Rankine Cycle (ORC).

Repeatability Of Alkanolamines In Carbon Dioxide Capture After Mineralization, Titiwut Sirima

Chulalongkorn University Theses and Dissertations (Chula ETD)

The mineralization reaction between alkanolamines solution loaded with CO2 and calcium ions (Ca2+) produced calcium carbonate precipitate under an ambient condition, which reduced energy for thermal regeneration of alkanolamines solution. This work represented alkanolamines as monoethanolamine (MEA), diethanolamine (DEA), and triethanolamine (TEA). In addition, calcium chloride (CaCl2), calcium sulphate (CaSO4) and calcium hydroxide (Ca(OH)2) were used as calcium sources. Utilization of calcium hydroxide (Ca(OH)2) as a calcium source in the mineralization reaction resulted in the supernatant retaining its ability to capture carbon dioxide over 89%, which is similar to thermal regeneration. The mineral regeneration and the thermal regeneration can regenerate …

Utility Optimization Via Multi-Section Heat Integration Approach For Multi-Period Operations, Ariyachai Silprasert

Chulalongkorn University Theses and Dissertations (Chula ETD)

Heat Exchanger Network (HEN) optimization is essential for achieving utility conservation and minimizing the Total Annual Cost (TAC) by maximizing heat recovery between process streams. This study investigates on single and multi-section heat integration within a caprolactam (CPL) plant, conducted in collaboration with a petrochemical company. The investigation comprehensively addresses multi-period operations, considering production rate variability at 60%, 80%, and 100% loads. This variability is due to fluctuating operating conditions influenced by economic factors, as well as start-up and shut-down schedules. This work utilizes process simulation namely Aspen Plus and establishes HEN solutions using Aspen Energy Analyzer (AEA) and conventional …

Techno-Economic Analysis Of Dimethyl Ether Production Via Direct Hydrogenation Of Co2, Boonyasit Farkham

Chulalongkorn University Theses and Dissertations (Chula ETD)

To achieve carbon neutrality by 2050, alternative and sustainable fuels are receiving significant attention. One of the interesting options is dimethyl ether (DME), which can be synthesized from CO2. This research aimed to simulate DME production from CO2 by comparing indirect synthesis (two-step process) and direct synthesis (one-step process) methods. This study found that the one-step process had negative net CO2 emissions, with values of -1.16 tons CO2 per ton of DME. It also consumed less energy compared to that of the two-step process. This was because the amount of methanol generated in the two-step process was higher than in …

วัสดุผสมขั้นสูงของไบโอชาร์และโครงสร้างโลหะอินทรีย์ (Mofs) สำหรับการเก็บไฮโดรเจน, แซมสัน บามิเดเล อาคินโดเย

Chulalongkorn University Theses and Dissertations (Chula ETD)

การพึ่งพาเชื้อเพลิงฟอสซิลในยุคอุตสาหกรรม โดยเฉพาะอย่างยิ่งสำหรับการขนส่ง ส่งผลให้การปล่อยก๊าซเรือนกระจก (GHG) เพิ่มขึ้นอย่างมาก ซึ่งมีส่วนทำให้เกิดการเปลี่ยนแปลงสภาพภูมิอากาศ การจัดการกับปัญหาสิ่งแวดล้อมนี้จำเป็นต้องมีแนวทางแก้ไขที่เป็นนวัตกรรมเพื่อลดการพึ่งพาเชื้อเพลิงแบบเดิมๆ การศึกษานี้มุ่งเน้นไปที่การพัฒนาวัสดุคอมโพสิตขั้นสูงที่ประกอบด้วยถ่านชีวภาพและกรอบโลหะ-อินทรีย์ (MOF) เพื่อการจัดเก็บไฮโดรเจนอย่างมีประสิทธิภาพ เพื่อลดการใช้เชื้อเพลิงฟอสซิลและผลกระทบต่อสิ่งแวดล้อม เราประเมินวัสดุแต่ละชนิด (ถ่านชีวภาพและ MOF) และส่วนประกอบของวัสดุเหล่านี้เกี่ยวกับความสมบูรณ์ของโครงสร้าง สัณฐานวิทยาของพื้นผิว ความพรุน การกระจายขนาดรูพรุน กลุ่มฟังก์ชันของพื้นผิว และความสามารถในการกักเก็บไฮโดรเจน ผลการศึกษาครั้งนี้สามารถปูทางไปสู่ความก้าวหน้าใหม่ๆ ในด้านวัสดุคอมโพสิตและกระทรวงการคลังเฉพาะทางสำหรับการจัดเก็บไฮโดรเจน ซึ่งส่งผลกระทบอย่างมีนัยสำคัญต่อความยั่งยืนและผลกระทบต่อสิ่งแวดล้อมของการขนส่งในอนาคต

Techno-Economic Analysis Of Pre-Treatment Methods For Monoethanolamine (Mea)Co2 Capture Process, Nida Isarapreeda

Chulalongkorn University Theses and Dissertations (Chula ETD)

Global warming is the increase in the earth's overall temperature due to human activities, primarily the burning of fossil fuels, leading to the greenhouse effect. Greenhouse gases cause temperatures to rise, lead to climate change, which encompasses alterations in weather patterns. In Thailand, the industries with significant greenhouse gas emissions include electricity generation, cement production, and steel production. To remove CO2 emissions, the carbon capture process is focused on this research. The Monoethanolamide (MEA) process stands out for its lowest capital investment cost due to its simplicity and minimal equipment requirements. SO2 and NOX can react with amine-based solvents used …

Process Design And Evaluation Of Value-Added Chemical Production From Crude Glycerol Obtained From Biodiesel Industry, Piyawan Thanahiranya

Chulalongkorn University Theses and Dissertations (Chula ETD)

Excessive glycerol, a major by-product of biodiesel industry, has been increasingly utilized as a platform chemical feedstock for production of value-added chemicals. Accordingly, this study aims to simulate the productions of propionic acid (PA), succinic acid (SA), and dihydroxyacetone (DHA) from glycerol via fermentation. For PA production, diluents and extractants as well as techniques in the back-extraction are investigated, whereas the techniques of reactive extraction and direct crystallization, as well as the use of dimethyl sulfoxide (DMSO) as an electron acceptor for SA production are investigated. Meanwhile, the effects of carbon source types and glycerol types on the DHA productivity …

Evaluating The Impact Of Increased Cycling On Thermal Power Plants Due To Wind Energy Penetration In The Midwest: A Case Study, Joscelyne Larson

Electronic Theses and Dissertations

One of the most significant shifts in the mix of U.S. electricity generation over the past few years has been the rapid expansion of renewable energy resources, especially solar and wind. However, fossil fuels are still necessary to fulfill the world’s energy requirements. Despite efforts to increase the use of renewable energy sources, these sources can be at times unreliable, causing countries around the world to continue to rely on base load units such as coal and natural gas. This decrease in fossil fuels and increase in renewable energy sources presents many complex issues in terms of power system planning, …

Novel Design And Synthesis Of Noble Metal Cluster Decorated Ironoxyfluoride Nanorods For Applications In Lithium-Ion Batteries And Water Splitting Catalysis, Dilann Yasin

Wayne State University Theses

Lithium-ion batteries have emerged as the preferred rechargeable energy storage system for vehicles and small electronics in order to help combat the environmental issues of our time. LIBs play an increasingly important role in the electrification of internal combustion engine vehicles. The performances of existing LIBs have plateaued after decades of research and development. In addition, cost and abundance of the most common battery materials, Lithium, Nickel and Cobalt, have become an issue in the world of energy storage systems. Therefore, in order to meet the increasing demand for safe and cheap energy storage, next‐generation batteries with dramatically improved electrochemical …

Constructing A Fine Dispersion And Chemical Interface Based On An Electrostatic Self-Assembly And Aqueous Phase Compound In Go/Sio2/Sbr Composites To Achieve High-Wear Resistance In Eco-Friendly Green Tires, Rui Zhang, Jiaye Li, Stephen Jerrams, Shui Hu, Shipeng Wen, Ligun Zhang

Articles

The hazard to the ecosystem caused by rubber microparticles generated from tire abrasion has been a constant concern. Therefore, to protect this ecosystem, the development of a tire tread with high abrasion resistance is especially significant. Herein, γ-aminopropyltriethoxysilane (APTES) was used to modify graphene oxide (GO) and silica (SiO2) to obtain GO and SiO2 with positive charges (NG and NS). Furthermore, NG and NS were electrostatically self-assembled by using maleic anhydride (MAH) hydrolysis, thereby obtaining composite particles (NG-NS) with “bridged structures”. Also, the NG-NS/styrene butadiene rubber (SBR) compounds possessing fine dispersion of NG-NS were prepared by the aqueous compounding method. …

Surface Modification Of Carbonyl Iron Particles Using Dopamine And Silane Coupling Agent For High-Performance Magnetorheological Elastomers, Jiaqing Zhao, Dongliang Li, Baojie Sun, Liang Jiang, Yanfen Zhou, Shipeng Wen, Stephen Jerrams, Jianwei Ma, Shaojuan Chen

Articles

Magnetorheological elastomers (MREs) are smart materials whose mechanical properties can quickly respond to changes in the external magnetic field. This phenomenon is known as the magnetorheological (MR) effect and is the key to the application of magnetorheological elastomers. Previous studies have found that the interface between magnetic particles and elastomers is a critical factor that influencing the MR effect of MREs. To improve the interfacial interaction between silicone rubber (SR) and carbonyl iron (CI) particles, in the MREs considered in this work, CI particles were subjected to surface modification through polydopamine (PDA) deposition and n-dodecyltrimethoxysilane (DTMS) grafting. X-ray photoelectron spectroscopy …

Development Of A Vascularized Osteogenic Implant Using Fused Glycosaminoglycan-Chitosan Microcapsules, Charles Michael Gabrion

Wayne State University Theses

Osteoarthritis remains a poorly treatable outcome of traumatic cartilage injury as cartilage is unable to self-repair. Unfortunately, roughly 10% of all adults in the United States have been diagnosed with osteoarthritis although the true fraction is likely at least 30%. While the main focus of osteoarthritis research has been on treating damage to the cartilage, osteoarthritis will also lead to damage to the adjacent trabecular bone due to wear via shearing down of the tissue’s surface. Considering this, in conjuncture with transplanted cartilages’ inability to integrate into the native tissue, unlike the surrounding bone, the significance of a combined osteochondral …

Outstanding Advantages, Current Drawbacks, And Significant Recent Developments In Mechanochemistry: A Perspective View, Silvina Pagola

Chemistry & Biochemistry Faculty Publications

Although known since antiquity, mechanochemistry has remained dormant for centuries. Nowadays, mechanochemistry is a flourishing research field at the simultaneous stages of gathering data and (often astonishing) observations, and scientific argumentation toward their analysis, for which the combination of interdisciplinary expertise is necessary. Mechanochemistry’s implementation as a synthetic method is constantly increasing, although it remains far from being fully exploited, or understood on the basis of fundamental principles. This review starts by describing many remarkable advantages of mechanochemical reactions, simplifying and “greening” chemistry in solutions. This description is followed by an overview of the current main weaknesses to be addressed …

More On The Demons Of Thermodynamics, Daniel P. Sheehan, Garret Moddel, James W. Lee

Chemistry & Biochemistry Faculty Publications

No abstract provided.