An Experimental Research On Reforming Pyrolyzation Gas With Dolomite

The pyrolyzation of biomass is a important measure to make use the biomass enengy,is also an important method to change biomass energy into high-grade sources of energy. The gas that produced by pyrolyzation of biomass includes CO , H₂ , CO₂ , CH₄ , as well as a few olefin and alkyne mainly.The Combustible gas direct produced by by pyrolyzation of biomass is limited,so we need reforming the pyrolyzation gas to increase the content of CO , H₂ ,and improve the efficiency of pyrolyzation gas used in industry.The catalyst used in reforming pyrolyzation gas mostly is metal catalyst in the homeland,such as nickel catalyst. metal catalyst has a high efficiency,but preparation process is complicated ,and has a high cost,so metal catalyst is not fit for Industrialization. In this dissertation, we use dolomite to be reforming catalyst,and discuss catalysis effect of dolomite all-round.Under the experimental conditions examined,we find in the condition of make dolomite as reforming catalyst,the higher temperature we enactment,the more pyrolyzation gas we can gain.But,we can get the most combustible gas in the condition of 750℃;the variety of matetial particle size infect feed-iness mainly,the smaller the matetial particle size is,the more combustible gas the reforming gas contains;lead into vopar can increase the yield of reforming gas consumedly, increase the content of H₂ and CO₂ in the reforming gas ,and reduce the content of CO in the reforming gas,we can also regulate content of H₂ and CO in the reforming gas by controlling the flux of vopar.The experiment studies illuminate that if we want to get high-content of H₂ in the reforming gas,we need the condition that is 750℃and 0.1mm—1mm dia and non vopar;if we want to get high yield of reforming gas,we need the condition that is 900℃and 0.1mm—1mm and leading into vopar;if we want to get high-content combustible gas in the reforming gas,we need the condition that is 900℃and 0.1mm—1mm and non vopar.In this dissertation,we analyse the effect of reforming catalyst dolomite,with comparing caramel catalyst and nickel catalyst,we find dolomite catalyst is a high-effect , clean , low-priced catalyst,and is fit for Industrialization.