Novel Sorbent to Clean Up Biogas for CHPs

Technical Report · Sat May 30 00:00:00 EDT 2015

DOI:https://doi.org/10.2172/1222699· OSTI ID:1222699

Alptekin, Gökhan O. ^[1]; Jayataman, Ambalavanan ^[1]; Schaefer, Matthew ^[1]; Ware, Michael ^[1]; Hunt, Jennifer ^[2]; Dobek, Frank ^[2]

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1. TDA Research, Incorporated, Wheat Ridge, CO (United States)
2. FuelCell Energy, Inc., Danbury, CT (United States)

In this project, TDA Research Inc. (TDA) has developed low-cost (on a per unit volume of gas processed basis), high-capacity expendable sorbents that can remove both the H₂S and organic sulfur species in biogas to the ppb levels. The proposed sorbents will operate downstream of a bulk desulfurization system as a polishing bed to provide an essentially sulfur-free gas to a fuel cell (or any other application that needs a completely sulfur-free feed). Our sorbents use a highly dispersed mixed metal oxides active phase with desired modifiers prepared over on a mesoporous support. The support structure allows the large organic sulfur compounds (such as the diethyl sulfide and dipropyl sulfide phases with a large kinetic diameter) to enter the sorbent pores so that they can be adsorbed and removed from the gas stream.

• Research Organization: TDA Research, Incorporated, Wheat Ridge, CO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: EE0001184
• OSTI ID: 1222699
• Country of Publication: United States
• Language: English