Guidelines offered for choosing cryogenics or absorption for gas processing

Yuv R. Mehra, Thomas K. Gaskin Advanced Extraction Technologies Inc. Houston Poco Petroleums Ltd.'s O'Chiese gas plant in central Alberta added a 60-MMscfd enhanced absorption NGL-recovery unit. Worldwide, the gas-processing industry meets a variety of economic and recovery objectives. These range from simply meeting a gas-transportation specification to achieving extremely high ethane recovery for providing feed to an ethylene facility. Choosing a cost-effective processing technology requires consideration of a broad range of factors. With the recent commercialization of the evolutionary, enhanced solvent absorption process, it is timely to question...

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