Configurations And Methods For Gas Condensate Separation From High-Pressure Hydrocarbon Mixtures
First Claim
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1. A method of processing a hydrocarbon feed in a refluxed absorber and a stabilizer, wherein the hydrocarbon feed includes at least 0.5 mol % of C6+ hydrocarbons, comprising:
- feeding a vapor portion and a liquid portion of a high pressure hydrocarbon feed to the refluxed absorber, and maintaining an overhead temperature of the absorber at about or below hydrate temperature of the feed;
feeding a stripping medium to the absorber, wherein the stripping medium is at least in part formed from a vapor portion of a stabilizer overhead; and
feeding a scrubbing medium to the absorber, wherein the scrubbing medium is at least in part formed from a liquid portion of the stabilizer overhead.
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Abstract
Contemplated configurations and methods for gas processing use a refluxed absorber that receives a liquid and a vapor hydrocarbon feed. The absorber further receives a stripping medium that is at least in part formed from a vapor portion of a stabilizer overhead and also receives a scrubbing medium that is at least in part formed from a liquid portion of the stabilizer overhead. Most preferably, the absorber overhead is maintained at a temperature near or even below the hydrate point of the feed.
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Citations
20 Claims
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1. A method of processing a hydrocarbon feed in a refluxed absorber and a stabilizer, wherein the hydrocarbon feed includes at least 0.5 mol % of C6+ hydrocarbons, comprising:
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feeding a vapor portion and a liquid portion of a high pressure hydrocarbon feed to the refluxed absorber, and maintaining an overhead temperature of the absorber at about or below hydrate temperature of the feed; feeding a stripping medium to the absorber, wherein the stripping medium is at least in part formed from a vapor portion of a stabilizer overhead; and feeding a scrubbing medium to the absorber, wherein the scrubbing medium is at least in part formed from a liquid portion of the stabilizer overhead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A gas treatment plant comprising:
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a refluxed absorber that is configured to receive a C6+ containing feed gas at a pressure of equal or greater than 600 psig, and that is further configured to produce a C6+ enriched bottom product and a C6+ depleted overhead product; a first separator fluidly coupled to the refluxed absorber to receive the C6+ enriched bottom product and to produce a liquid portion of the C6+ enriched bottom product and a vapor portion of the C6+ enriched bottom product; a stabilizer fluidly coupled to the first separator and configured to receive the liquid portion of the C6+ enriched bottom product and to produce an overhead; a second separator fluidly coupled to the stabilizer to receive the overhead and to produce a vapor portion of the overhead and a liquid portion of the overhead; and wherein the absorber is further configured to receive the vapor portion of the overhead as stripping medium, to receive the liquid portion of the overhead as a scrubbing medium. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification