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Title: Novel Sorbent to Clean Up Biogas for CHPs

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 H 2S 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.
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [2]
  1. TDA Research, Incorporated, Wheat Ridge, CO (United States)
  2. FuelCell Energy, Inc., Danbury, CT (United States)
Publication Date:
OSTI Identifier:
DOE Contract Number:
Resource Type:
Technical Report
Research Org:
TDA Research, Incorporated, Wheat Ridge, CO (United States)
Sponsoring Org:
Country of Publication:
United States