On Demand Conference Presentations

CO2 Separation From Coal-Fired Power Plants by Regenerable Mg(OH)2 Solutions

Oct 18, 2011

Hari Krishna Bharadwaj

AICHE ABSTRACT CO 2 Separation from Coal-Fired Power Plants by Regenerable Mg(OH) 2 Solutions Hari K. Bharadwaj † , Joo-Youp Lee † *, Xiang Zhou ‡ , Lei Cheng ‡ , Tim C. Keener ‡ † Chemical Engineering Program, ‡ Environmental Engineering Program, School of Energy, Environmental, Biological, and...

A Future Energy Supply Based on Liquid Organic Hydrogen Carriers (LOHC)

Oct 18, 2011

Daniel Teichmann

This lecture describes a concept for the establishment of a competitive energy distribution network based on Liquid Organic Hydrogen Carrier (LOHC) compounds. These compounds are characterized by the fact that they can be loaded and un-loaded with considerable amounts of hydrogen in a cyclic...

Lignin Depolymerization and Deoxygenation In Ionic Liquids

Oct 18, 2011

Blair J. Cox

Lignin, an amorphous aromatic biopolymer that comprises up to 30% of plant matter, was dissolved and depolymerized in ionic liquids under acidic conditions. The acidic ionic liquid 1-methylimidazolium chloride (HMIMCl) acts as a combination solvent and catalyst that facilitates degradation of...

Which Fractionation Process Can Overcome Techno-Economic Hurdles of a Lignocellulosic Biorefinery?

Oct 18, 2011

Adriaan van Heiningen

Lignocellulosics are considered as feed stock for transportation fuels and chemicals because they address two pressing global issues; climate change and “peak oil”. The collection and processing of wood at centralized facilities is already practiced by the forest products industry. Therefore, the...

Triacylglycerol Production From Corn Stover Silage Using a Xylose-Fermenting Rhodococcus Opacus Strain

Oct 18, 2011

Kazuhiko Kurosawa

Background: Biodiesel, monoalkyl esters of long-chain fatty acids attached to short-chain alcohols derived from triacylglycerols (TAGs), can be produced from renewable biomass sources. There has been interest in producing TAGs from oleaginous microorganisms. As published recently (J Biotechnol...

Heterogeneous Catalysts in the Dehydration of Fructose to HMF

Oct 18, 2011

Sylvia Reiche

Several crucial steps in the upgrading of biomass-derived raw materials involve acid catalyzed reactions, such as the hydrolysis of cellulose or the dehydration of sugars. Although heterogeneous catalysts are desired in large scale industrial processes, their application is limited by several...

Improving Corn Stover Reactivity In Low Severity Pretreatment Through Deacetylation and Disc-Refining

Oct 18, 2011

Xiaowen Chen

The current “state-of-art” dilute acid pretreatment to produce bio-ethanol from corn stover requires severe conditions to overcome biomass recalcitrance, which, in turn, offers 70~80% xylose monomer yield and 5~7% furfural yield. However, high acid loadings and high reaction temperatures harm the...

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...

Structure and Thermochemistry of Phase-Changing Aminosilicone-Based CO2-Capture Absorbents

Oct 18, 2011

Benjamin R. Wood

Liquid aminosilicone-based CO 2 absorbents that solidify upon reaction with CO 2 have been developed. These phase-changing absorbents have the potential for superior performance for capturing CO 2 from the flue gas of pulverized-coal power plants. A process has been conceived in which the liquid...

The Role of Oxygen In the Stability of Biomass Pyrolysis Oils

Oct 18, 2011

Foster Agblevor

One of the major challenges in the conversion of biomass pyrolysis to high value products and fuels is the poor stability of the oils. Biomass pyrolysis oils have shown increases in viscosity during storage at ambient conditions and when heated above ambient temperature. The poor stability of the...

A New Generation of Zirconia Supported Metal Oxide Catalysts for Esterification of Free Acid Feedstocks

Oct 18, 2011

Manhoe Kim

The acid catalyst promotes esterification by reacting the carboxylic group of the FFA with methanol to form methylesters and water. In this reaction mixture, the sulfuric acid is more miscible in the water product phase than the methanol phase leading to a pronounced water inhibition effect that...

Hydrogen Production From Deliquescence of Ammonia Borane

Oct 18, 2011

Bing-Hung Chen

Chemical hydride is one of the most potential hydrogen storage materials which can effectively increase hydrogen storage capacity. To meet the new goal of U.S. department of energy (DoE), 4.5wt% and 5.5 wt% of gravimetric hydrogen density capacity by 2010 and 2015, respectively, ammonia borane (AB...

Material and Engineering Assessments of Electrochemical Processes for Carbon Capture Technology

Oct 18, 2011

Fritz Simeon

Integrating carbon capture technology with large source carbon emitters is necessary in the very near future to mitigate the contribution of anthropogenic CO 2 emissions to climate change and global public welfare. However, the implementation of this technology with current separation approaches is...

Synthesis of Green Diesel Fuel From Fatty Acid Feedstocks Via Electrochemical Hofer-Moest Decarboxylation

Oct 18, 2011

Cody Wagner

Production of biodiesel by esterification or transesterification of long-chain fatty acids is a well known process, but the fuel product has characteristics making it not fully compatible with petroleum diesel engines. A better option is to convert fatty acid molecules to hydrocarbons by removing...

The Production of Fuel Grade Butanol From Algal Carbohydrates Utilizing a Hybrid Biological and Chemical Process

Oct 18, 2011

Thomas M. Potts

Butanol has the potential to become a superior renewable fuel, either as a mixture with petroleum derived gasoline or as a stand-alone, neat fuel. The promise of butanol is currently marred by the relatively high cost of production. This paper explores a new and novel approach to the production of...

The Capture of Carbon Dioxide by Ionic Liquid

Oct 18, 2011

Hongyan He

Ionic liquid is one kind of organic salts with negligible volatile pressure which might lead to promising substitute candidates for alkanolamines in separation of carbon dioxide. To satisfy this requirement effectively, task specific ionic liquids with alkaline groups, such as imidazolium cation...

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