Fast hydropyrolysis of biomass Conversion: A comparative review

Recent studies show that fast hydropyrolysis (i.e., pyrolysis under hydrogen atmosphere operating at a rapid heating rate) is a promising technology for the conversion of biomass into liquid fuels (e.g., bio-oil and C4+ hydrocarbons). This pyrolysis approach is reported to be more effective than conventional fast pyrolysis in producing aromatic hydrocarbons and also lowering the oxygen content of the bio-oil obtained compared to hydrodeoxygenation (a common bio-oil upgrading method). Based on current literature, various non-catalytic and catalytic fast hydropyrolysis processes are reviewed and discussed. Efforts to combine fast hydropyrolysis and hydrotreatment process are also highlighted. Points to be considered for future research into fast hydropyrolysis and pending challenges are also discussed.

Automated summary

Recent studies have shown that fast hydropyrolysis is a promising technology for converting biomass into liquid fuels, producing more aromatic hydrocarbons and reducing the oxygen content of bio-oil. Current research focuses on both non-catalytic and catalytic fast hydropyrolysis processes, as well as efforts to combine fast hydropyrolysis with hydrotreatment processes. Future research directions and challenges in fast hydropyrolysis are also discussed.