Advanced Steam Reforming of Bio-Oil with Carbon Capture: A Techno-Economic and CO2 Emissions Analysis

A techno-economic analysis has been used to evaluate three processes for hydrogen production from advanced steam reforming (SR) of bio-oil, as an alternative route with BECCS: conventional (C-SR), C-SR CO2 capture (C-SR-CCS), and sorption-enhanced chemical looping (SE-CLSR). The impacts feed molar carbon ratio (S/C), temperature, pressure, the use hydrodesulphurisation pretreatment, plant capacity were examined in economic evaluation direct emissions analysis. Bio-oil C-SR-CC or SE-CLSR may be feasible routes production, potential provide negative emissions. can improve process thermal efficiency compared C-SR-CCS. At (S/C) 2, levelised cost (USD 3.8 4.6 per kg) avoided are less than those a amine-based CCS. However, at higher S/C ratios, does not have strong advantage, there is need better understand viability operating bio-oil high temperatures (>850 °C) low (e.g., 2), whether cycle sustain deposition levels over long period.