(68a) Contaminant Tolerant Water-Gas-Shift Catalyst for Coal-Biomass-to-Liquids Process

Alptekin, G., TDA Research Inc.
Jayaraman, A., TDA Research Inc.
Devoss, S., TDA Research Inc.

Gasification technologies convert coal and biomass into synthesis gas feed streams that can be used as a chemical feedstock to Coal-Biomass-to-Liquids (CBTL) processes.  The CBTL process can produce transportation fuels and value added chemicals. It uses domestic feedstock, has a greenhouse gas footprint better than conventional coal or petroleum fuels, and is projected to be economical at world oil price significantly below the existing level of $82 per barrel (IEC, November 2009). 

The commercialization of the CBTL technologies requires the development of clean-up and purification processes that can virtually eliminate the contaminants from the synthesis gas feed stock. While the gas clean-up is vital to protect the catalysts, it will also increase the cost of the CBTL process, and the more stringent the removal requirements are, the more the gas clean-up will cost.  Therefore, it is desirable to develop catalysts that can resist poisoning to reduce the extent and severity of the gas clean-up process.

The water-gas-shift catalyst is tolerant to the contaminants in the synthesis gas streams generated by coal and biomass co-gasification. We will present the results from our contaminant tolerant catalyst development efforts in the meeting.