On Demand Conference Presentations

Towards Developing Anaerobic Digestion Based Biorefinery – Research On Food Wastes As Feedstock

Oct 19, 2011

Shulin Chen

Anaerobic digestion (AD) is a proven technology for waste treatment. However, as the organic material becomes more valuable and being treated as resources, traditional AD process is no longer adequate. The Bioprocessing and Bioproduct Engineering Laboratory at Washington State University has been...

Change of Structure of Corncob with Dilute Acid and Lime Pretreatment and a Potential Process for Xylose Co-Production of Cellulosic Ethanol

Oct 19, 2011

Jihong Li

Degree of polymerization (DP) of cellulose is considered an important factor to effect on the conversion of Lignocellulose. The higher DP of cellulose, the more difficult conversion of lignocellulose is. In this study, corncobs were pretreated with dilute acid process for production of xylose, and...

Bioconversion of Brown Seaweed Into Mixed Ketones Through the Carboxylate Platform Processing

Oct 19, 2011

Xin Chen

The Carboxylate Platform, also known as the MixAlco TM process, is an acidogenic fermentation process using mixed culture inoculums, which offers several advantages compared to conventional bioprocessing, such as: non-sterile fermentation, the use of inexpensive tanks, adaptability to a wide...

BIOCORE - On a Paradigm for the Design and Synthesis of Real-Life Biorefineries

Oct 19, 2011

Aikaterini D. Mountraki

As oil is a fast depleting resource (BP, 2010), much is expected by the production of biofuels as valid options to replace fossil-oil transportation fuels. Biorefineries are not an entirely new concept. Many of the traditional biomass conversion technologies such as the sugar and paper industries...

Kinetics of CO2 Absorption Into Aqueous Potassium Carbonate Solution Promoted by Carbonic Anhydrase Enzyme

Oct 18, 2011

Xinhuai Ye

A novel Integrated Vacuum Carbonate Absorption Process (IVCAP) for post-combustion CO 2 capture is being developed at the University of Illinois at Urbana-Champaign. A key technical aspect of this process is to employ a biocatalyst, carbonic anhydrase (CA) enzyme, to enhance the rates of CO 2...

Process Optimization towards Sustainability Using Modified Particle Swarm Algorithm for a Multitude of Objectives

Oct 17, 2011

Mazdak Shokrian

Extreme purpose of finding the most cost effective design solution with the least waste generation possible, considering environmental and social impacts in chemical engineering design problems justifies developing a systematic methodology for incorporating sustainability concerns into design and...

Fouling Monitoring Techniques for Water Treatment Membrane Processes

Nov 7, 2010

Kuo-Lun Tung

Membrane fouling and flux decline are undesirable, albeit inevitable, problems in membrane filtration processes for water treatment. The development of low fouling membranes, the design of high efficiency modules, the selection of optimal operational strategies, and several improvements made in...

Stripper Configurations for CO2 Capture by Aqueous Amines

Mar 23, 2010

David H. Van Wagener

A monumental task for improving the feasibility of carbon capture from the flue gas of coal-fired power plants is reducing the total energy cost. A generic absorption/stripping process using an aqueous amine solvent would reduce the net power production of a coal-fired power plant by roughly 30%,...

Pyrolytic Pathways to Advanced Biofuels

Oct 18, 2011

R. C. Brown

Pyrolysis is the thermal conversion of carbonaceous materials in the absence of molecular oxygen to liquids, solids and gases. In the most general sense, pyrolysis can occur in an inert or reducing atmosphere or within a solvent (including water); it can occur at atmospheric or elevated pressure;...

Rules of Thumb for Reactor Design and Process Conditions for Thermochemical Treatment of Chromated Copper Arsenate (CCA) Treated Wood Waste

Oct 16, 2011

Lieve M. Helsen

Lab-scale pyrolysis experiments have been performed to gain insight in the mechanisms influencing the metal behavior during carbonization of chromated copper arsenate (CCA) treated wood chips. To this end a fixed bed low temperature pyrolysis reactor and a thermogravimetric (TG) analyser have been...

Toward Low-Cost Fabrication of Microchannel Process Technologies – Cost Modeling for Manufacturing Development

Nov 8, 2010

Steven D. Leith

Chemical and energy conversion systems based on microchannel process technology (MPT) demonstrate high performance in applications in which rates are controlled by diffusive heat and mass transfer flux. MPT-based heat exchangers, absorbers/desorbers and chemical reactors all benefit from process...

Wood Pellets Self-Heating During Storage

Oct 17, 2011

Wendi Guo

Accidental fires in wood pellets silos happen frequently in the last five years. Experiments were carried out in this work at temperature range of 100 o C to 200 o C to study wood pellets chemical oxidation process. A self-heating model was developed to simulate the self-heating process using the...

Optimal Charge Rates for a Lithium Ion Cell

Oct 19, 2011

Saeed Khaleghi Rahimian

Optimal Charge Rates for a Lithium Ion Cell Saeed Khaleghi Rahimian, Sean Rayman, Ralph E. White Department of Chemical Engineering, University of South Carolina, Columbia, SC29208, USA Abstract The optimum charge rate for a lithium ion cell at each cycle is determined to maximize the useful life...

Development of Fuzzy Based - Inherent Safety Performance Indices Integrated with Process Simulators

Oct 17, 2011

Namjin Jang

A milestone in process safety was the 1974 Flixborough explosion in the United Kingdom the caused twenty-eight deaths. Following, the accident interest in chemical process industry safety increasd, as well as from government regulatory organizations and the general public. Since 1978, interest in...

Comparison of Chemical and Biological Delignification of Cardboard

Oct 18, 2011

Estefania Isaza

Some processes aimed to biofuels production, use lignocellulosic wastes as feedstocks for fermentative conversion. If this is the case, pretreatment is required to make these resources fully digestible. Among a wide range of pretreatment options, this study focuses and compares oxidative-alkaline...

The Effects of Carbon-to-Oxygen Ratio Upon Supercritical Water Reformation for Hydrogen Production

Oct 19, 2011

Jared S. Bouquet

The Effects of Carbon-to-Oxygen ratio upon Supercritical Water Reformation for Hydrogen Production Jared Bouquet 1 , Ryan Tschannen 2 , Aaron Gonzales 2 , and Sunggyu Lee 2 1: Missouri University of Science and Technology, Rolla, MO 2: Ohio University, Athens, OH With the continually growing energy...

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