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- W79040454 abstract "Pyrolysis was conducted on dry lignin in a microwave reactor and system. The gas fraction was analyzed by gas chromatography; the liquid fraction was dissolved in ether, separated in a capillary column, and analyzed by mass spectrometry in an analytical scheme. Thermal pyrolysis promoted liquefaction while plasma processing was a gasification reaction. Both pyrolysis methods evolved carbon monoxide and carbon dioxide in comparable amounts. Plasma processing produced 43% hydrogen and 14% acetylene on a volume basis while thermal pyrolysis gases contained neither compound. The mechanism for the homogeneous production of acetylene from the CO and H/sub 2/ in the plasma has been suggested by Mertz, et al: H/sub 2/ + e/sup -/ ..-->.. 2H. + e/sup -/, H. + CO ..-->.. CH. + O/sup +/, 2CH. ..-->.. C/sub 2/H/sub 2/. Although this mechanism can be expected to occur in H/sub 2/ carrier gas experiments, a considerable volume fraction of the gaseous products in an inert carrier, 43%, was H/sub 2/ derived from the lignin itself. Thus one can imagine the CH. radical being generated directly from lignin and complex hydrocarbon fragmentation. 7 figures, 3 tables." @default.
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- W79040454 date "1979-03-01" @default.
- W79040454 modified "2023-09-24" @default.
- W79040454 title "Rapid pyrolysis of biomass/lignin for production of acetylene" @default.
- W79040454 hasPublicationYear "1979" @default.
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