Study on biomass char on catalytic pyrolysis performance of tar

In a tubular reactor,the catalytic performance of biomass char on tar cracking were studied.Dolomite and quartz sand were also tested for the comparison.Through analysis and comparisons on conversion rate of tar,pyrolysis products,pyrolysis gas composition and kinetic parameters,it could be known that biomass char,as the catalyst of tar,could realize the highest conversion rate of tar,the largest proportion of gas in pyrolysis products,the more proportion of combustible gas in pyrolysis gases and the lowest kinetic parameters among three catalytic materials used in the study.The catalytic performance of biomass char is significantly superior than that of quartz sand and slightly better than that of dolomite,so it is an efficient catalyst for tar cracking.