Oxygen removal from intact biomass to produce liquid fuel range hydrocarbons via fast-hydropyrolysis and vapor-phase catalytic hydrodeoxygenation

摘要

Proof-of-concept of a novel consecutive two-step biofuel process (H(2)Bioil), based on fast-hydropyrolysis and downstream vaporphase catalytic hydrodeoxygenation (HDO), to produce liquid fuel range (C4+) hydrocarbons with undetectable oxygen content, from cellulose and an intact biomass (poplar) is presented. The carbon recovery as C-1-C8+ hydrocarbons is similar to 73% (C4+ similar to 55%) from cellulose and similar to 54% (C4+ similar to 32%) from poplar. Advantages of independent control of fast-hydropyrolysis and HDO temperatures, along with synergistic process integration aspects are discussed.