Date: Thursday, 27 June 2024
Time: 13:45 - 14:45 CEST
Session code 4DO.7
Optimising the biogas process
Electrochemical Mercaptan Removal from Biogas
Short Introductive summary
At the Technical University of Denmark, a novel Power-to-X biogas cleaning method has been developed. It works by letting certain biogas impurities react with active chlorine in a scrubber tower, and the active chlorine is then regenerated in an electrochemical cell. The process is ahead of currently employed cleaning methods, which are more expensive and inflexible wrt. changes in biogas impurity concentrations. In previous work, it has been shown to be capable of removing H2S. In the presented work, the capability of removing methyl mercaptan has been explored. It was found that the process was able to remove ppm-levels of me-thyl mercaptan from a gas stream. Furthermore, the final sulfuric product was measured to be sulfate and the amount of CH3SH removed is linearly correlated to the applied current. Lastly, the process was found to be relatively robust wrt. changes in gas flow, liquid flow and inlet concentration.
Presenter
Andreas Juhl SØRENSEN
Technical University of Denmark, Chemical and Biochemical Engineering Dpt.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
S. Borgquist, Technical University of Denmark, Kgs. Lyngby, DENMARK
O.H. Jensen, Technical University of Denmark, Kgs. Lyngby, DENMARK
S.N.B. Villadsen, Technical University of Denmark, Kgs. Lyngby, DENMARK
C. Warm, Technical University of Denmark, Kgs. Lyngby, DENMARK
J. Abildskov, Technical University of Denmark, Kgs. Lyngby, DENMARK
P.L. Fosbøl, Technical University of Denmark, Kgs. Lyngby, DENMARK
Session reference: 4DO.7.4