AbstractBiomass materials, including lignin, redwood, corn cob, Calotropis Procera, Leucaena wood, Kraft paper, newsprint, cow manure,D‐glucose, andD‐cellobiose, were pyrolyzed in vacuum by the visible radiant flux emitted from a Xenon flashtube. The flux density exceeded 8 kW/cm2during the 1 ms flash. Sirup yields were low (avg 25), while the gas yield was high (avg 32). The gaseous products were composed primarily of CO and CO2. The high relative yields of CO establish the existence of a high temperature fragmentation pathway active during the flash pyrolysis of all biomass materi
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