2011•Chinese Agricultural MechanizationRequires access
Reaction Mechanism Analysis on Hydrogen Productionby Gasification of Lignin in Supercritical Water
Jinjun Deng
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Abstract
Experimental investigation on hydrogen production by gasification of lignin was studied in supercritical water in a batch-type autoclave.And alkaline compound K2CO3 was used as catalyst under the experimental condition of 500℃ and 30MPa.Gas phase products and liquid phase products were analysed by gas chromatograph and gas chromatography-mass spectrometer respectively.Liquid phase products were composed of furfural,5-hydroxymethyl furfural.They were the main products of glucose under supercritical conditions.According to analysis results,reaction pathway of lignin was proposed.Free radical reaction mechanism was proposed to interpret the formation mechanism of gas.