Biofuels (Energy)

A Model-Assisted Tool for the Characterization of Char In Biomass Pyrolysis and Biomass Catalytic Pyrolysis

Oct 18, 2011

Shoucheng Du

Coke formation appears as a reason for catalyst deactivation and results in undesirable product selectivity in biomass pyrolysis. However, there is no effective way to separate coke and char in the majority of current approaches, which prevents studying coke formation and therefore the real reason...

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...

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...

Study of Culture Strategies of Microalgae In a Continuous Photobioreactor System for Biofuel Production

Oct 18, 2011

Haiying Tang

The development of new biomass sources for alternative fuels has become a subject of increasing importance as the nation strives to resolve the economic and strategic impacts of limited fossil fuel resources on our national security, environment, and global climate. Algae are among the most...

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 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...

Development of a Compact Fischer Tropsch Reactor

Oct 18, 2011

Lyman Frost

Fischer Tropsch (FT) synthesis is a polymerization process where a CH X species is added to a growing aliphatic chain. There are several models of the catalytic chain propagation rate and the termination of the chain growth (e.g. Anderson – Schulz – Flory model). The exact methodology for the...

Biological Conversion of Algefiber® (Seaweed Sludge) to Carboxylic Acids for Chemical Upgrading to Higher Alcohols Liquid Biofuel

Oct 18, 2011

Sampath A. Karunarathne

Concern about biofuel production from renewable resources has increased globally. Among different approaches to produce biofuels, the MixAlco ™ process is an innovative technology operating on the carboxylate platform, which converts any biodegradable material into mixed alcohol fuels through...

Conversion of Cellobiose Into Glucose At near-Neutral pH Using a Recyclable Heterogeneous Catalyst

Oct 18, 2011

Po-Wen Chung

Strong acids under severe reaction conditions are known to rapidly hydrolyze cellulose with moderate selectivity towards glucose; however, enzymes in nature convert saccharides into glucose at higher selectivity using mild conditions dictated by carboxylate acids/carboxylate bases at the active...

Poly(oxymethylene) Dimethyl Ethers As Components of Tailored Diesel Fuel - Properties, Synthesis and Purification Concepts

Oct 18, 2011

Jakob Burger

Poly(oxymethylene) Dimethyl Ethers as components of tailored diesel fuel - properties, synthesis and purification concepts Jakob Burger 1* , Markus Siegert 2 , Eckhard Ströfer 2 , Michael Nilles 2 , Hans Hasse 1 1 Laboratory of Engineering Thermodynamics, University of Kaiserslautern, Germany; 2...

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...

Feedstock Mixture Effects On Sugar Monomer Recovery Following Dilute Acid Pretreatment and Enzymatic Hydrolysis

Oct 18, 2011

Michael J. Brodeur-Campbell

Feedstock Mixture Effects on Sugar Monomer Recovery Following Dilute Acid Pretreatment and Enzymatic Hydrolysis Michael Brodeur-Campbell 1 , Jordan Klinger 1 , and David Shonnard 1,2 [1] Department of Chemical Engineering, Michigan Technological University [2] Director Sustainable Futures Institute...

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;...

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...

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...

Reducing Process Complexity for Cellulosic Ethanol

Oct 18, 2011

L.O. Ingram

Much of the process complexity and high capital costs associate with cellulosic ethanol (dilute acid hydrolysis as a pretreatment and enzymatic saccharification of cellulose) results from side products such as furfural, acetate, and soluble lignin compounds that inhibit the biocatalysts. Inhibitor...

Search form

Biofuels (Energy)

Pages