Biofuels (Energy)

CEP: Catalyzing Commercialization - Turning a Problem into a Cure for Increased Ethanol Yield

January
2014
Catalyzing Commercialization
The beneficial microbes that convert milk into yogurt and act in our guts to promote digestive health cause big problems in ethanol fermentation tanks. These lactic acid bacteria (LAB) proliferate in ethanol feedstock and inhibit growth of ethanol-producing yeast — which slows down fermentation, reduces biofuel yield by as much as 20% per pound of input material, and results in production shutdowns due to contamination. The most common control measures, chemical antimicrobials such as antibiotics, do not eliminate LAB. Additionally, the potential for antibiotic residue limits the marketability of dried distillers grains, a byproduct of the fermentation process used as animal feed. Ecolyse Inc., based in College Station, TX, is working to address this issue by developing products to treat bacterial contamination.

Biorefinery Process Economics

October
2005
SBE Special Section
Gregory M. Bohlmann
With oil and natural gas prices surging, bio-based feedstocks are becoming increasingly competitive. This article examines, in depth, the technical and economic aspects of the biorefinery concept.

Hydrolysis Kinetics of Woody Biomass: Surface Renewal

Conference Presentation
AIChE Annual Meeting
November 11, 2015
Woody biomass is known to be composed of three major components: cellulose, lignin and hemicellulose. Cellulose is the most stable natural polymer in...

Making Escherichia coli Grow on Methanol

Conference Presentation
AIChE Annual Meeting
November 9, 2015
The quest for using methanol as a substrate to produce useful metabolites such as commodity chemicals, chemical precursors, biopolymers,...

Alternate Fuel Synthesis in Supercritical Solvents

Conference Presentation
AIChE Annual Meeting
November 19, 2014
Anant Sarve , Mahesh N. Varma*, Shreeram S. Sonawane. Department of Chemical Engineering, Visvesvaraya National Institute of Technology, Nagpur,...

Study On the Aging Mechanism of Pyrolysis Bio-Oil

Conference Presentation
AIChE Annual Meeting
November 6, 2013
Biomass Pyrolysis Study on the Aging Mechanism of Pyrolysis Bio-oil The unstable nature of pyrolysis oil produced from biomass fast pyrolysis is one...

Upgrading of Biomass-Derived Liquid to Clean Fuels

Conference Presentation
AIChE Annual Meeting
November 2, 2012
The objective of this study is to develop and demonstrate a viable economical pathway to produce renewable transportation fuels from cellulosic biomass such as wood chips, forest wastes, and agriculture residues.

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