Industrial Biotechnology

Structural Characterization of AHP-Pretreated Biomass

Oct 18, 2011

Muyang Li

Alkaline hydrogen peroxide (AHP) pretreatment is exceptionally well-suited to grasses, yielding high digestibilities at low enzyme loadings, while generating relatively few fermentation innhibitors. For AHP pretreatment, the question of how structural and chemical compositional changes within the...

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;...

Integration of a Membrane Based Extraction Process Into a Lignocellulosic Biorefinery

Oct 18, 2011

Ranil Wickramasinghe

In the future, it is anticipated that multi-product biorefineries will be used to convert lignocellulosic biomass to fuels and chemicals, in which, it may be possible to use membrane-based separations to recover fuels and various products and to improve energy efficiency. To biochemically convert...

Alkaline Deacylation of Corn Stover to Reduce Toxicity of Prehydrolyzates and Improve Enzymatic Hydrolysis

Oct 18, 2011

Urvi D. Kothari

Hydrolysates from dilute acid pretreatment of biomass contain various biomass degradation products which are inhibitory to enzymes and toxic to microorganisms. One of the main inhibitory compounds is acetic acid which is released from the lignin-hemicellulose matrix in the biomass. Acetic acid at...

Production of Concentrated Monosaccharride Solutions From Biomass Using CO2-H2O Mixtures At Varying Temperatures

Oct 18, 2011

Jeremy S. Luterbacher

Sustainably producing concentrated solutions of monosaccharrides from biomass is a key bottleneck in the conversion of lignocellulosic biomass to biofuels or bioproducts. Most pretreatment and enzymatic hydrolysis processes are run at low-solid concentration (<10 wt%) and use chemical catalysts...

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...

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...

An Integrated Lipid-Based Platform for “Drop-In” Fuel Biorefinery

Oct 18, 2011

Shulin Chen

A major challenge in developing biorefinery is that the availability of biomass often limits the scale of the plant thus the feasibility of an operation. We proposed an integrated lipid-based platform as one technical option. According to this concept, different biomass resources will be first...

Isoconversional Methods Applied to Kinetic Modeling Oxidative Alkaline Pretreatment of Sugarcane Bagasse

Oct 18, 2011

Rocio Sierra

Delignification (decrease of lignin content) has shown to be a valid method to significantly increase lignocellulosic feedstocks digestibility. This operation (widely known as pretreatment) makes these abundantly available and inexpensive feedstocks usable in fermentation processes whose main goal...

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...

Realizing the Potential of Advanced Biofuels

Oct 18, 2011

Thomas Foust

Advanced biofuels or drop-in fuels is the terminology used to refer to hydrocarbon fuels that are direct replacements or supplements for existing gasoline, diesel and jet fuels currently refined from conventional petroleum feedstocks. Drop-in fuels from biomass will need to meet all of the refinery...

Co-Utilization of Methane In Steam-Biomass Gasification Using Concentrated Solar Energy

Oct 18, 2011

Aaron W. Palumbo

Presented is a novel gasification application where biomass is steam-gasified and natural gas is steam-reformed simultaneously in a solar reactor. Solar-driven gasification is a proven technology, and can augment the biofuel industry as a domestic fuel source. Gasification performed in an...

Improving the Quality of Spent Mushroom Substrate (SMS) As Feedstock for Biorefineries

Oct 17, 2011

Maria Nydia Ruiz-Felix

In the current ecological climate there is a strong push to find a renewable energy resource to reduce the usage of fossil fuels which are depleting and are causing greenhouse gas emissions. Biorenewable materials, particularly lignocellulosic biomass, have received increased attention recently as...

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...

Agent-Based Modeling Analysis of Biomass Feedstock Production System Dynamics and Resilience

Oct 17, 2011

Yogendra Shastri

An efficient and sustainable energy crop production system is essential for the success of the emerging biorefinery industry. However, there is currently a significant lack of understanding regarding the development and dynamics of the biomass feedstock market upstream of the biorefinery, which is...

Catalytic Conversion of Biomass Into Carboxylic Acids Via APPO Process

Oct 17, 2011

Hongfei Lin

Converting raw solid biomass into liquid or gas phase intermediates which can be readily upgraded to hydrocarbon fuels is the most challenging or energy intensive step during the biofuel production process due to the complex composition and structure of biomass. We are developing cost competitive...

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Industrial Biotechnology

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