Process for producing a hydrogen-rich gas stream

Details Process for producing a hydrogen-rich gas stream Process for producing a hydrogen-rich gas stream

C - Chemistry, Metallurgy

10

G

162/110

C10G 25/06 (2006.01) C10G 35/04 (2006.01)

Patent

CA 1267355

"PROCESS FOR PRODUCING A HYDROGEN-RICH GAS STREAM" ABSTRACT A process for economically increasing the hydrogen purity of a hydrogen-rich gas stream from a reaction zone effluent comprising hydrogen and hydrocarbons is disclosed. The multistep process essentially involves subjecting the effluent to a first phase separation at conventional conditions followed by recontacting a cooled portion of the vapor phase with a cooled 10 to 20% portion of the hydrocarbon liquid phase to achieve a second phase separation at a significantly lower temperature than the temperature used in the first separation. The use of a 10 to 20% portion of the hydrocarbon phase recovered in the first phase separation instead of the entire amount results in a significant savings in utilities and capital costs for the refrigeration required to achieve the desired purification.

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