Journal
SUSTAINABLE ENERGY & FUELS
Volume 5, Issue 13, Pages 3382-3402Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1se00123j
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This study evaluates the application potential of BECCS technology in biofuel production through a comprehensive analysis of technical, economic, and environmental performance, providing important data on energy efficiency, carbon emissions, and economic costs of different production routes, which is crucial for scientifically promoting decarbonization of the fuel economy.
This study focuses on bioenergy with carbon capture and storage (BECCS) in fuel generation and assesses the potential of biofuel generation to decarbonise the fuel economy by reducing CO2 emissions to the atmosphere. The research investigates the technical, economic, and environmental performances of three biofuel production routes, namely Fischer-Tropsch synthesis (FTS), bio-synthetic natural gas (bioSNG) and oxymethylene ethers (OMEx) synthesis using flowsheets developed in Aspen Plus. It constitutes the first attempt to holistically evaluate both the techno-economic performance and the environmental benefits of employing BECCS in fuel generation. For an input of 1020 dry tonnes per day of woody biomass, the FTS route yields 275 t d(-1), the bioSNG route yields 238 t d(-1) and the OMEx route yields 635 t d(-1) of fuel and the energy efficiency is in the range of 44.9% to59.7% without CCS and 44.0% to 58.2% with CCS. In addition, negative emissions can be achieved for all routes with CCS in the range of 301 000 to 519 000 tCO(2) per year. For economic viability, the minimum selling price for FT-fuels, bioSNG, and OMEx production with CCS have been calculated as 23.4 pound per GJ, 14.5 pound per GJ and 26.5 pound per GJ, respectively. However, competition with conventional fossil-derived fuels is not possible without the combination of existing financial incentives and a proposed carbon pricing. With carbon credit as the only financial incentive, carbon pricing in the range of 48 pound to 86 pound per tCO(2) needs to be applied to achieve feasibility. Also, more negative emissions need to be generated to decrease the value of this range and reasonably phase out dependence on fossil-derived fuels. Parametric studies identified as crucial parameters to be improved the fuel output, CAPEX, operating hours and feedstock cost.
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