Reactive flash volatilization of nonvolatile carbohydrates for synthesis gas

Paul J Dauenhauer, Josh Colby, Lanny D. Schmidt

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Using RhCe/Al2O3 catalysts at residence times < 70 msec, carbohydrates such as cellulose and starch can be directly converted to synthesis gas products near equilibrium. The effect of steam addition, N2/O2 feed ratio, and air preheat conditions were examined to maximize selectivity to synthesis gas at all considered fuel/air ratios. The addition of steam resulted in ∼ 80% conversion of hydrogen in glycerol. Autothermal conversion was likely to occur by coupling the endothermic biomass decomposition process with highly exothermic catalytic partial oxidation. By directly contacting carbohydrate particles with a hot catalytic surface capable of providing high heating rates, the solid particle formed volatile organics which flowed into a porous catalyst and reformed with oxygen to form synthesis gas. This is an abstract of a paper presented at the AIChE Annual Meeting (Salt Lake City, UT 11/4-9/2007).

Original languageEnglish (US)
Title of host publication2007 AIChE Annual Meeting
StatePublished - Dec 1 2007
Event2007 AIChE Annual Meeting - Salt Lake City, UT, United States
Duration: Nov 4 2007Nov 9 2007

Publication series

Name2007 AIChE Annual Meeting


Other2007 AIChE Annual Meeting
CountryUnited States
CitySalt Lake City, UT

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