Syngas as Electron Donor for Sulfate and Thiosulfate Reducing Haloalkaliphilic Microorganisms in a Gas-Lift Bioreactor.

ABSTRACT: Biodesulfurization processes remove toxic and corrosive hydrogen sulfide from gas streams (e.g., natural gas, biogas, or syngas). To improve the efficiency of these processes under haloalkaline conditions, a sulfate and thiosulfate reduction step can be included. The use of H₂/CO mixtures (as in syngas) instead of pure H₂ was tested to investigate the potential cost reduction of the electron donor required. Syngas is produced in the gas-reforming process and consists mainly of H₂, carbon monoxide (CO), and carbon dioxide (CO₂). Purification of syngas to obtain pure H₂ implies higher costs because of additional post-treatment. Therefore, the use of syngas has merit in the biodesulfurization process. Initially, CO inhibited hydrogen-depe

SUBMITTER: Plugge CM 

PROVIDER: S-EPMC7565546 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature