MCRC sulfur recovery process

MCRC A variation on the CBA sulfur recovery process using multiple Claus converters. Developed by the Delta Engineering Corporation in 1983 and used in Canada, China, and Mexico. 

Heigold. R. E., and Berkeley, D. E., 1983, The MCRC Sub-Dewpoint Sulfur Recovery Process. Gas Conditioning Conference Proceedings, University of Oklahoma, Norman. OK. 

These sub-dew point processes can increase the overall Claus plant sulfur recovery to up to 99%, as limited by equilibrium conversion and sulfur vapor pressure losses. Elf Aquitaine s Sulfreen process, Amoco s cold bed adsorption (CBA) process, and the Mineral and Chemical Resource Company (MCRC) process licensed by Delta Hudson are all variations on the cold bed sub-dew point process. 

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