Direct Production of Molecules In the Fuel Range by Selective Tailoring of Biomass Fast Pyrolysis

Wednesday, October 19, 2011: 8:53 AM
208 C (Minneapolis Convention Center)
Piotr Gawecki1, Fabio Ribeiro1, W. Nicholas Delgass1, Rakesh Agrawal1, Andrew Smeltz1, Matthew R. Hurt2, David J. Borton II2, Nelson R. Vinueza2, Hilkka I. Kenttamaa2, Nicholas J. Nugent3 and William E. Anderson3, (1)Chemical Engineering, Purdue University, West Lafayette, IN, (2)Chemistry, Purdue University, West Lafayette, IN, (3)Aeronautics and Astronautics, Purdue University, West Lafayette, IN

Pyrolysis of biomass is being evaluated as a promising technique for production of fuels and value-added chemicals in place of petroleum-based approaches. We have developed a technique that allows for direct, real time detection and analysis of pyrolysis products. Using sub-milligram quantities of biomass heated at rates up to 20,000 K s-1, pyrolyzed directly in front of a linear quadrupole ion trap mass spectrometer, we are able to determine the true primary products, which are small fragments of the biomass building blocks. Furthermore, we have shown that it is possible to systematically tailor secondary reactions of these primary products by varying the temperature and residence time they spend in a flow tube. Specifically, we are able to restrict the product distribution to the number of carbons useful for making liquid fuels (C12-C18 range). The findings from the sub-milligram reactor have been verified in a 10 g min-1 reactor.

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See more of this Session: Biomass Pyrolysis II
See more of this Group/Topical: Fuels and Petrochemicals Division