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Biofuels (Energy)

Direct Coupled Catalytic Upgrading of Multi-Stage Pyrolysis Bio-Oil Vapors

Oct 17, 2011
Shaolong Wan
A two-stage pyrolysis was conducted in this work. The purpose of the multiple stages is to provide a segregated product evolution in which the vapor products maybe be more selectively treated by catalysts to improve product quality and catalyst stability in comparison to one step pyrolysis in which...

Modeling and Scale up of CO2-Water Pretreatment of Guayule Biomass

Oct 17, 2011
Ehsan Moharreri
A carbon dioxide – water pretreatment process was developed for guayule biomass. The guayule biomass was mixed with water and then loaded to a reactor where it was exposed to a biphasic environment consisting of CO2 rich vapor phase and water rich liquid phase. Then, the biomass was enzymatically...

Biomass Pyrolysis and Gasification: Engineering Rules of Thumb

Oct 16, 2011
Michael J. Antal
In this presentation I review important findings recorded in the archival literature concerning the thermodynamics, kinetics, mechanisms, and catalysis of biomass pyrolysis and gasification that serve as rules of thumb for reactor design.

Lignin Unlocking Process Led by Termites for Efficient Carbohydrate Utilization

Oct 16, 2011
Jing Ke
Wood-feeding termites are highly effective in deconstruction of wood cell wall structure for efficient utilization of cellulose and hemicelluloses. One of the key factors for its effectual cell wall disintegration is the lignin structure modification for de-protection. In this study, we provide...

Reforming of Residual Tars and Oils From Biomass Gasification

Oct 16, 2011
Lyman Frost
One of the barriers to wider use of many kinds of biomass is the fact that they generate refractory tars and oils when gasified. These compounds cause difficulty when they are passed to downstream components in the system by causing plugging and drop in performance. The compounds can be condensed...

Multi-Scale Study On the Pyrolysis of Sustainable Biomass Feedstock

Oct 16, 2011
Jessica D. Murillo
Multi-Scale Study on the Pyrolysis of Sustainable Biomass Feedstock Jessica D. Murillo Department of Chemistry, Environmental Sciences, Tennessee Technological University, Cookeville, TN 38505 Joseph J. Biernacki Department of Chemical Engineering, Tennessee Technological University, Cookeville, TN...

Rule of Thumb for Reactor Design and Process Condition for Biodiesel Production

Oct 16, 2011
Masato Kouzu
The rule of thumb for reactor design and process condition for biodiesel production is introduced. The important aspect includes type of feedstock oil, catalyst selection, methanol/oil ratio, quality of the produced biodiesel. When low quality plant oil is used as the feedstock, its pre-treatment...

Mechanistic Modeling of Fast Pyrolysis of Cellulose to Predict Bio-Oil Composition

Oct 16, 2011
Vinu Ravikrishnan
Fast pyrolysis, a potential strategy for the production of transportation fuels from biomass, involves a complex network of competing reactions, which result in the formation of bio-oil, non-condensable gaseous species, and solid char. Bio-oil is a mixture of anhydro sugars, furan derivatives, and...

Modeling and Optimization of Algae Based Biodiesel Production

Oct 16, 2011
Soumya Yadala
Processing of biodiesel from algae biomass has attracted much interest in recent times due to many reasons. Significant amongst them are global warming and scarcity in fossil fuels. It has been suggested that this third generation biofuel, a carbon neutral alternative, is capable of meeting the...

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