Method and apparatus for recovery of H.sub.2 and C.sub.2 and hea

Details Method and apparatus for recovery of H.sub.2 and C.sub.2 and hea Method and apparatus for recovery of H.sub.2 and C.sub.2 and hea

1994-11-22

1997-11-18

Caldarola, Glenn A.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By plural serial diverse separations

585800, 208100, 208102, 208103, 208104, 62 9, 62 11, 62 23, C07C 700, C10G 4922, F25J 300

Patent

active

056890320

ABSTRACT:
A process and apparatus for separating a hydrocarbon gas into fractions containing predominant portions of hydrogen, methane, and C.sub.2 and heavier components, where the methane and lighter components are separated from the feed gas under non-cryogenic conditions to produce a hydrogen-rich fraction, a first fraction rich in C.sub.2 and heavier components and a hydrocarbon-rich fraction, the hydrocarbon-rich fraction then being separated under cryogenic conditions into a second fraction rich in C.sub.2 and heavier components and a methane-rich fraction.

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Chemical Engineering Magazine, "Reengineering Ethylene's Cold Train,", 37-39 (Jan. 1994).
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Kinetics Technology Int'l Corp., "Advanced Ethylene Process," 14 page report, (Mar. 1993).
Advanced Extraction Technologies, Inc. (Unpublished), "Non-Cryogenic Absorption-Based Mehra Process Technology Upgrades Hugoton Gases", 18 page report, (Mar. 1993).

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