Improving bio aviation fuel yield from biogenic carbon sources through electrolysis assisted chemical looping gasification
Journal article, 2023

The second-generation bio aviation fuel production via Chemical Looping Gasification (CLG) of biomass combined with downstream Fischer-Tropsch synthesis is a possible way to decarbonize the aviation sector. Although CLG has a higher syngas yield and conversion efficiency compared to the conventional gasification processes, the fraction of biogenic carbon which is converted to biofuel is still low (around 28%). To increase carbon utilization and biofuel yield, incorporation of two types of electrolyzers, Polymer Electrolyte Membrane (PEM) and Molten Carbonate Electrolysis Cell (MCEC), for syngas conditioning has been investigated. Full chain process models have been developed using an experimentally validated CLG model in Aspen Plus for Iron sand as an oxygen carrier. Techno-economic parameters were calculated and compared for different cases. The results show that syngas conditioning with sustainable hydrogen from PEM and MCEC electrolyzers results in up to 11.5% higher conversion efficiency and up to 8.1 % higher biogenic carbon efficiencies in comparison to the syngas conditioning with water gas shift reactor. The study shows that the lowest carbon capture rates are found in the configurations with the highest biogenic carbon efficiency which means up to 14% more carbon ends up in FT crude compared to the case with conventional WGS conditioning. Techno-economic analysis indicates that syngas conditioning using PEM and MCEC electrolyzers would result in an increase of the annual profit by a factor of 1.4 and 1.7, respectively, when compared to using only WGS reactors.

Aspen Plus modelling

Chemical looping gasification

Electrolyzers

Techno-economic analysis

Electro-fuel

Author

Mohammad Shahrivar

Chalmers, Space, Earth and Environment, Energy Technology

Muhammad Nauman Saeed

Chalmers, Space, Earth and Environment, Energy Technology

Gajanan Dattarao Surywanshi

Chalmers, Chemistry and Chemical Engineering, Energy and Material

Tobias Mattisson

Chalmers, Space, Earth and Environment, Energy Technology

Amir H. Soleimanisalim

RISE Research Institutes of Sweden

Fuel

0016-2361 (ISSN)

Vol. 348 128525

Subject Categories

Energy Engineering

Chemical Process Engineering

Bioenergy

Energy Systems

DOI

10.1016/j.fuel.2023.128525

More information

Latest update

5/26/2023