CCS and Power Systems
ADVANCED ENERGY SYSTEMS - GASIFICATION SYSTEMS
Warm Gas Cleanup
Performer: NETL Office of Research and Development
Project No: FWP-2012.03.03 Task 5
Work on warm gas clean-up is focused on testing and developing palladium (Pd) sorbents to capture the trace metals selenium (Se), phosphorus (P), arsenic (As), mercury (Hg), antimony (Sb), and cadmium (Cd) from coal-derived syngas. A laboratory-scale packed-bed reactor is used to test the capacity of the Pd sorbent for Hg, As, Se, P, and Cd from simulated flue gases at temperatures between 400 and 700 degrees Fahrenheit (°F). The performance of the Pd sorbents is being examined at larger scales via testing in bench-scale packed-bed reactors. Additional larger-scale tests using slipstreams of actual coal gas will continue at the National Carbon Capture Center (NCCC), and pilot-scale testing at NCCC will focus on the use of smaller loadings of Pd as well as longer exposures to slipstreams of dirty syngas. A detailed cost analysis for the use of Pd-based sorbents in trace contaminant capture has been developed and will be used for guiding the future application and development of the sorbents. Low-cost sorbents for trace contaminant capture will also be tested at laboratory through pilot scales.
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