OctSummary2 - Cars, Energy and Chemistry: October Summary

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Cars, Energy and Chemistry: October Summary Combustion(Oxidation) Reactions (repeat from Sept. but now in fuel cells) H 2 + 1/2 O 2 H 2 O (liquid) H ο = - 285.8 KJ CH 4 + 2 O 2 CO 2 (g) + 2 H 2 O (l) H ο = - 890 KJ CH 3 OH + 3/2 O 2 CO 2 (g) + 2 H 2 O (l) H ο = - 726 KJ CH 3 CH 2 OH + 3 O 2 2 CO 2 (g) + 3 H 2 O (l) H ο = - 1367 KJ Reactions related to biofuels Oil from BS (dry manure, heated at 400 C under CO 1200 psi) 6CO (g) + 8C(H 2 O) C x H y (mixed hydrocarbon oil) + 2 H 2 O (l) + 6CO 2 (g) C 6 H 12 O 6 (glucose fermentation) 2 CO 2 (g) + 2 CH 3 CH 2 OH CH 3 (CH 2 ) 3 OH + 6 O 2 4 CO 2 (g) + 5 H 2 O (l) 93 octane combustion of butanol Identify the molecule(s), below, describe how they are connected and give the overall formula Sucrose (glucose and fructose) Fuel Energy Comparisons (know general trends) Cellulose (air dry ) ~ 6 K BTU/lb (in thousands) CH 3 CH 2 OH 11.5 K BTU/lb C 4 H 9 OH 15.5 K BTU/lb Gasoline 18.4 K BTU/lb Diesel 19.3 K BTU/lb
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This note was uploaded on 01/16/2012 for the course ENVIRON 404 taught by Professor Rasmussen during the Fall '11 term at University of Michigan.

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OctSummary2 - Cars, Energy and Chemistry: October Summary

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