Catalytic Cracking of Ketone Components in Biomass Pyrolysis Oil

The experimental research on catalytic cracking of ketone components in biomass pyrolysis oil was carried out on a fix-bed reactor, using HZSM-5 zeolite as the catalyst. Based on the results, coke formation was little during the cracking of ketone components, and the main cracking products were aromatic hydrocarbons and unsaturated alicyclic hydrocarbons. Meanwhile, hydrocarbons were easily produced at higher volume hour space velocity (VHSV). The selectivity of hydrocarbons was almost 100% when the VHSV was 3 h^-1. While it decreased to 64.79% when the VHSV was 1 h^-1. When the reaction temperature was 400°C, not only high ketone components conversion was reached, but also high selectivity of hydrocarbons was achieved.