alcohols for fuel: biological energy to usable energy
DESCRIPTION
Alcohols for fuel: Biological energy to usable energy. Beth Papanek. Three main alcohols:. Methanol Ethanol Butanol. History of Ethanol. biofuelsdigest.com. Potential Yield. History of Butanol. Produced commercially starting in the 1920’s. Source: Hans Blaschek. Ethanol vs. Butanol. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/1.jpg)
Alcohols for fuel:Biological energy to
usable energyBeth Papanek
![Page 2: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/2.jpg)
Three main alcohols:
Methanol Ethanol Butanol
![Page 3: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/3.jpg)
History of Ethanol
biofuelsdigest.com
![Page 4: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/4.jpg)
Potential Yield
![Page 5: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/5.jpg)
History of Butanol
Produced commercially starting in the 1920’s
Source: Hans Blaschek
![Page 6: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/6.jpg)
Ethanol vs. Butanol
Wikipedia: “Ethanol” “isobutanol”
![Page 7: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/7.jpg)
Comparison
Source: Hans Blaschek
![Page 8: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/8.jpg)
Quick Biochem overview…
![Page 9: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/9.jpg)
Saccharomyces cerevisiae
![Page 10: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/10.jpg)
Butanol Metabolism
Source: Hans Blaschek
![Page 11: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/11.jpg)
Problem: Preferential Hexose consumption
Source: bio.miami.edu
38-50% Cellulose, 15-30% Lignin, 23-32% Hemicellulose in cellulosic plants
![Page 12: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/12.jpg)
![Page 13: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/13.jpg)
Possible Improvements: Genetic Engineering
Saccharomyces cerevisiae Gene expression
for xylose uptake Increased xylose
transport
Clostridium beijerinckii Inhibitor tolerance Metabolic
constraints Electron flow
![Page 14: Alcohols for fuel: Biological energy to usable energy](https://reader035.vdocuments.net/reader035/viewer/2022062521/568167ec550346895ddd57bb/html5/thumbnails/14.jpg)
References
Ezeji, T., Qureshi, N., Blaschek, H. (2007) Bioproduction of butanol from biomass: from genes to bioreactors. Current Opinion in Biotechnology. 18: 220-227.
Gray, K., Zhao, L., Emptage, M. (2006) Bioethanol. Current Opinion in Chemical Biology. 10: 141-146.
Nevoigt, E. (2008) Progress in Metabolic Engineering of Saccharomyces cerevisiae. Microbioloby and Molecular Biology Reviews. 72: 379-412.