Chemical Engineering Commons^™

Production Of Activated Carbons From Pyrolytic Biochar, Anastasia Colomba, Franco Berruti, Cedric Briens, Ajay Dalai, Rambabu Nedunury, Alberto Colomba, Silvia Fiore, Giuseppe Genon

Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes

No abstract provided.

Experimental Study Of Biomass Fast Pyrolysis, Felipe Buendía-Kandia, Guillain Mauviel, Francis Billaud

Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes

No abstract provided.

Two-Stage Thermochemical Conversion Of Lignin Into Aromatic Chemicals, Paul J. De Wild, A. Kloekhorst, H. H. Heeres, W. J.J. Huijgen

Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes

No abstract provided.

Autothermal Fast Pyrolysis Of Wood Residuesfor Wood Adhesives, Dongbing Li, Franco Berruti, Cedric Briens

Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes

No abstract provided.

Advanced Carbonized Biomass Materials For Biosensor Applications, Muhammad Noman, Alessandro Sanginario, Pravin Jagadale, Danilo Demarchi, Alberto Tagliaferro, Mauro Giorcelli

Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes

No abstract provided.

Modeling Of Pollutant Adsorption On Novel Modified Biomass As A Means Of Seawater Decontamination, Dimitrios Sidiras, F. Batzias, C. Siontorou, I. Konstantinou, I. Salapa, S. Zervopoulou

Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes

No abstract provided.

On-Line Analysis Of Catalytic Biomass Products Using A High Pressure Tandem Mirco-Reactor Gc/Ms, M. Soll, R.R. Freeman, Chu Watanabe, Ichi Watanabe, Y.M Kim, N. Teramae, K. Wang

Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes

No abstract provided.

A Flexible Three-Stage Thermochemical Conversion Process, Vander Tumiatti

Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes

No abstract provided.

Multiple-Choice Testing Using Immediate Feedback-Assessment Technique (If At®) Forms: Second-Chance Guessing Vs. Second-Chance Learning?, Jeremy D. Merrel, Pier F. Cirillo, Pauline M. Schwartz, Jeffrey Webb

Chemistry and Chemical Engineering Faculty Publications

Multiple choice testing is a common but often ineffective method for evaluating learning. A newer approach, however, using Immediate Feedback Assessment Technique (IF AT®, Epstein Educational Enterprise, Inc.) forms, offers several advantages. In particular, a student learns immediately if his or her answer is correct and, in the case of an incorrect answer, has an opportunity to provide a second response and receive partial credit for a correct second attempt. For a multiple choice question with five possible answers, the IF AT® form covers spaces labeled A through E with a thin opaque film; when the film is scratched away, …

Exploring The Use Of Faded Worked Examples As A Problem Solving Approach For Underprepared Students, Tiffany Hesser, Jess L. Gregory

Chemistry and Chemical Engineering Faculty Publications

It is not uncommon for students to find themselves underprepared when entering a post secondary institution. In additional to lower levels of academic achievement, underprepared students may not be aware that they lack the skills needed to be successful and effectively acquire and process information. Because of this, students that enter post-secondary institutions underprepared often require more support in and out of the college classroom.

In computational based classes, such as math, engineering, chemistry or physics, this support often includes an introduction to effective problem solving strategies. This study introduced faded worked examples as a problem solving approach to students …

Characterization Of Dimethyl Sulfoxide-Treated Wool And Enhancement Of Reactive Wool Dyeing In Non-Aqueous Medium, Luyi Chen, Bijia Wang, Jiangang Chen, Xinhui Ruan, Yiqi Yang

Department of Textiles, Merchandising and Fashion Design: Faculty Publications

Wool pretreated with dimethyl sulfoxide (DMSO) was characterized and its dyeing behavior in non-aqueous green solvents was investigated. Reactive dyeing of wool in deep shades is challenging because the mandatory alkaline aftertreatment to match the fastness of mordant dyes inevitably causes damage to wool keratin. The current study showed that the colorfastness-integrity dilemma could be solved by replacing water with organic solvents as the dyeing medium. Covalent fixation is predominantly favored in solvent dyeing so that excellent colorfastness is achievable at any given shade without alkali aftertreatment. Compared with aqueous dyeing, solvent dyeing was found to give 30% higher covalent …

Sustainability And Economic Analysis Of Propylene Carbonate And Polypropylene Carbonate Production Processes Using Co2 And Propylene Oxide, Yaşar Demirel

Yaşar Demirel Publications

Currently, the industrially important polycarbonates are synthesized from bisphenol A and diphenyl carbonate, which are highly toxic and hence other feasible alternatives are preferable. Following the considerable advances on the catalyst for the synthesis of carbonates from CO₂ and propylene oxide (PO), industrial scale processes for the productions of propylene carbonate (PC) and polypropylene carbonate (PPC) have been designed and simulated with sustainability and economic analyses. The CO₂ is supplied by a nearby bioethanol plant, while the PO from a petrochemical process. The first part of the study is for the production of 200 million lb/year cyclic PC …

Propane Dehydrogenation On Single Site Gallium On Silica Catalyst, Shankali U. Pradhan

Open Access Theses

Light alkane dehydrogenation is gaining increasing importance due to the discovery of shale gas. Gallium based catalysts such as Ga/HZSM-3 and Ga₂O₃ have been used to dehydrogenate propane to propylene. However, the exact nature of the active site for propane dehydrogenation on Gallium based catalysts is still debated in literature. This work is aimed at understanding the nature of active site in Ga/SiO₂ catalyst for propane dehydrogenation. The Ga/SiO₂ catalyst is active and selective for propane dehydrogenation reaction. It is shown that Ga ⁺³ site co-ordinated with four O atoms is the most active form …

Creation Of An Annotated Library On Fda Approved Nanomedicines, Marley R. Hodson, Tanin Izadi, Nastassja Lewinski Ph.D, Bridget T. Mcinnes Ph.D

UROP Posters

Nanomedicine is a type of nanotechnology used in the medical field to limit the dosage amount and target drug delivery to specific cells. Nanomedicines that are approved and used tend to be extremely successful; however despite over a decade of research, only a limited number of nanomedicines have advanced for clinical use. A possible reason for the numerous nanomedicine failures is lack of easily accessible information and research on previous nanomedicines. In this project, we have compiled nanomedicine labeling information from the Drugs@FDA website. We have extracted phrases/sentences from labels relating to keywords on nanomaterial properties and drug profile characteristics. …

Change In Chirality Of Semiconducting Single-Walled Carbon Nanotubes Can Overcome Anionic Surfactant Stabilisation: A Systematic Study Of Aggregation Kinetics, Iftheker A. Khan, Joseph R. V. Flora, A. R. M. Nabiul Afrooz, Nirupam Aich, P. Ariette Schierz, P. Lee Ferguson, Tara Sabo-Attwood, Navid B. Saleh

Chemical, Biomolecular, and Materials Engineering Faculty Publications

Single-walled carbon nanotubes’ (SWNT) effectiveness in applications is enhanced by debundling or stabilisation. Anionic surfactants are known to effectively stabilise SWNTs. However, the role of specific chirality on surfactant-stabilised SWNT aggregation has not been studied to date. The aggregation behaviour of chirally enriched (6,5) and (7,6) semiconducting SWNTs, functionalised with three anionic surfactants – sodium dodecyl sulfate, sodium dodecyl benzene sulfonate and sodium deoxycholate – was evaluated with time-resolved dynamic light scattering. A wide range of mono- (NaCl) and divalent (CaCl₂) electrolytes as well as a 2.5 mg total organic carbon (TOC) L^–1 Suwannee River humic acid …

Switchable Release Of Entrapped Nanoparticles From Alginate Hydrogels, Cathal J. Kearney, Hadas Skaat, Stephen M. Kennedy, Jennifer Hu, Max Darnell, Theresa M. Raimondo, David J. Mooney

Chemical, Biomolecular, and Materials Engineering Faculty Publications

Natural biological processes are intricately controlled by the timing and spatial distribution of various cues. To mimic this precise level of control, the physical sizes of gold nanoparticles are utilized to sterically entrap them in hydrogel materials, where they are subsequently released only in response to ultrasound. These nanoparticles can transport bioactive factors to cells and direct cell behavior on‐demand.

Numerical And Field Data Analysis Of Drill Stem Vibration, Mohammed Fayez Al Dushaishi

Doctoral Dissertations

"Drill stem vibration is a major cause of premature failure of drill stem components and drilling inefficiency. In severe cases, drill stem vibration may lead to wellbore instability that could lead to increased operational cost. Drill stem vibrations are affected by design decisions and the drilling environment. Examples are; bottom hole assembly configurations, selection of operational parameters, and frequent changes in lithology. Vibration modeling, analysis of vibration data, and specialized vibration reduction tools are methods in use to prevent and mitigate severe vibrations.

A drill stem vibration model was created using nonlinear strain formulation which couples the axial, lateral and …

Technoeconomics And Sustainability Of Renewable Methanol And Ammonia Productions Using Wind Power-Based Hydrogen, Michael J. Matzen, Mahdi H. Alhajji, Yaşar Demirel

Yaşar Demirel Publications

This study analyzes and compares the economics and sustainability aspects of two hydrogenation processes for producing renewable methanol and ammonia by using wind-power based electrolytic hydrogen. Carbon dioxide from an ethanol plant is used for producing methanol, while the nitrogen is supplied by an Air Separation Unit (ASU) for producing ammonia. The capacities are 99.96 mt/day methanol and 1202.55 mt/day anhydrous ammonia. The methanol plant requires 138.37 mt CO₂/day and 19.08 mt H₂/day. The ammonia is synthesized by using 217.72 mt H₂/day and 1009.15 mt N₂/day. The production costs and the carbon …

Coalescence-Induced Jumping Of Droplet: Inertia And Viscosity Effects, Samaneh Farokhirad, Jeffrey F. Morris, Taehun Lee

Publications and Research

The problem of coalescence-induced self-propelled jumping of droplet is studied using three-dimensional numerical simulation. The focus is on the effect of inertia and in particular the effect of air density on the behavior of the merged droplet during jumping. A lattice Boltzmann method is used for two identical, static micro-droplets coalescing on a homogeneous substrate with contact angle ranging from 0◦ to 180◦. The results reveal that the effect of air density is significant on detachment of the merged droplet from the substrate at the later stage of the jumping process; the larger the air density, the larger the jumping …

Surface Functionalized Magnetic Nanoparticles For Cancer Therapy Applications, Robert J. Wydra

Theses and Dissertations--Chemical and Materials Engineering

Despite recent advances, cancer remains the second leading cause of deaths in the United States. Magnetic nanoparticles have found various applications in cancer research as drug delivery platforms, enhanced contrast agents for improved diagnostic imaging, and the delivery of thermal energy as standalone therapy. Iron oxide nanoparticles absorb the energy from an alternating magnetic field and convert it into heat through Brownian and Neel relaxations. To better utilize magnetic nanoparticles for cancer therapy, surface functionalization is essential for such factors as decreasing cytotoxicity of healthy tissue, extending circulation time, specific targeting of cancer cells, and manage the controlled delivery of …