CCS and Power Systems
Advanced Energy Systems - Gasification Systems
Warm Gas Multi-Contaminant Removal System
Performer: TDA Research, Inc.
Project No: SC0008243
Gasification technologies convert coal and biomass into synthesis gas feed streams that can be used for power generation cycles or converted into value-added chemicals and transportation fuels. However, coal-derived synthesis gas contains many trace contaminants that should be removed prior to downstream processes. TDA Research, Inc. (TDA) is developing a low-cost, high capacity sorbent that can remove ammonia (NH3) and hydrogen cyanide (HCN) and trace metal contaminants (such as mercury, arsenic, and selenium) from coal- and coal/biomass-derived synthesis gas in a single process step. TDA will determine the effect of operating parameters, conduct multiple-cycle experiments, and test sorbent life. Unlike the commercially available gas clean-up technologies, the TDA multi-contaminant control system operates above the dew point of the synthesis gas (500 degrees Fahrenheit). With this technology, the synthesis gas would not have to be cooled in order to remove the contaminants, thus improving the thermal efficiency of the process. This technology has the potential to improve the energy efficiency and process economics for producing electric power from coal gasification.