Method for the recovery of low purity carbon dioxide

Details Method for the recovery of low purity carbon dioxide Method for the recovery of low purity carbon dioxide

1989-03-20

1990-12-18

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

60648, 62 12, 62 28, 62 35, 55 68, E25J 100

Patent

active

049777459

ABSTRACT:
A process for the economical recovery of carbon dioxide from a gas stream containing less than 85% carbon dioxide, by cooling the contaminating gas to remove water vapor, compressing the cooled gas to an elevated temperature and pressure, and drying the gas to a dewpoint of not more than about -85.degree. F.; condensing and removing the carbon dioxide from the dried compressed gas; and heating the remaining noncondensed gas mixture and expanding it to produce and recover kinetic energy and a cooled gas mixture.

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patent: 4566278 (1986-04-01), Force
patent: 4609388 (1986-09-01), Adler et al.

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