HYDROCARBON GAS PROCESSING

摘要

A process and an apparatus are disclosed for removal of carbon dioxide from hydrocarbon gas streams in a processing assembly. The stream is cooled, expanded to intermediate pressure, and supplied as a top feed to a mass transfer means inside the processing assembly. A distillation liquid stream is collected from the lower region of the mass transfer means and directed into a first heat and mass transfer means inside the processing assembly to heat it and strip out its volatile components while cooling the gas stream, thereafter discharging the heated and striped distillation liquid stream from the processing assembly as the bottom liquid product therefrom. The quantities and temperatures of the feeds to the mass transfer means are effective to maintain the temperature of the upper region of the mass transfer means at a temperature whereby the major portion of said carbon dioxide is recovered in the bottom liquid product.