Purge to intermediate pressure in cryogenic distillation

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United States of America Patent

PATENT NO 10274252
APP PUB NO 20160370110A1
SERIAL NO

15154413

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Abstract

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A system and method for an intermediate pressure vessel to receive a purge in a cryogenic distillation column system. The vessel operates at an intermediate pressure to reduce solidification of the purge. The cryogenic distillation column receives a natural gas having methane and acid gas. The column discharges an overhead stream rich in the methane, and a bottoms stream rich in the acid gas. An overhead system receives the overhead stream, and discharges a vapor methane product, and a cooled liquid for reflux to the cryogenic distillation column.

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Patent Owner(s)

  • EXXONMOBIL UPSTREAM RESEARCH COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kelman, Scott D Houston, US 2 1
Kimble, E Lawrence Sugar Land, US 11 195
Valencia, Jaime A Houston, US 28 468

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