Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Yu, Fei
Committee Member
Steele, Philip
Committee Member
French, Todd
Date of Degree
8-6-2011
Document Type
Graduate Thesis - Open Access
Major
Biological Engineering
Degree Name
Master of Science (M.S.)
College
James Worth Bagley College of Engineering
Department
Department of Agricultural and Biological Engineering
Abstract
As production of ethanol climbs, nonood feedstocks need to be utilized such as lignocellulosic biomass. The sugars present in bio-oil produced by fast pyrolysis can potentially be fermented by microbial organisms to produce cellulosic ethanol. This study shows the potential for microbial digestion of the aqueous fraction of bio-oil in an enrichment medium to consume glucose and produce ethanol. In addition to glucose, inhibitors such as furans and phenols are present in the bio-oil. A pure glucose enrichment medium of 20 g/L was used as a standard to compare with glucose and aqueous fraction mixtures for digestion. 30% by volume of aqueous fraction in media was the most that could be consumed and yielded 0.4 g of ethanol per g of glucose. Inhibitor removal tests by extraction, activated carbon, air stripping, and microbial means were also mildly successful. Ethanol could potentially be produced for $14 per gallon using these methods.
URI
https://hdl.handle.net/11668/15546
Recommended Citation
Livingston, Darrell Rex Jr, "Ethanolic fermentation of bio-oil hydrolysate" (2011). Theses and Dissertations. 1940.
https://scholarsjunction.msstate.edu/td/1940