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Title:
A METHOD TO RECOVER LPG AND CONDENSATES FROM REFINERIES FUEL GAS STREAMS
Document Type and Number:
WIPO Patent Application WO/2019/136566
Kind Code:
A1
Abstract:
A method to recover hydrocarbonfractions from refineries gas streams involves a pre-cooled heat refinery fuel gas stream mixed with a pre-cooled and expanded supply of natural gas stream in an inline mixer to condense and recover at least C3 + fractions upstream of a fractionator. The temperature of the gas stream entering the fractionator may be monitored downstream of the in-line mixer. The pre-cooled stream of high pressure natural gas is sufficiently cooled by flowing through a gas expander that, when mixed with the pre- cooled refinery fuel gas, the resulting temperature causes condensation of heavier hydrocarbon fractions before entering the fractionator. A further cooled, pressure expanded natural gas reflux stream is temperature controlled to maintain fractionator overhead temperature. The fractionator bottoms temperature may be controlled by a circulating reboiler stream.

Inventors:
LOURENCO, Jose (16640 - 111 Ave NW, Edmonton, Alberta T5M 2S5, T5M 2S5, CA)
MILLAR, Mackenzie (16640 - 111 Ave NW, Edmonton, Alberta T5M 2S5, T5M 2S5, CA)
Application Number:
CA2019/050045
Publication Date:
July 18, 2019
Filing Date:
January 11, 2019
Export Citation:
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Assignee:
1304338 ALBERTA LTD. (16640 - 111 Ave NW, Edmonton, Alberta T5M 2S5, T5M 2S5, CA)
1304342 ALBERTA LTD. (16640 - 111 Ave NW, Edmonton, Alberta T5M 2S5, T5M 2S5, CA)
International Classes:
F25J3/02; C10L3/10
Attorney, Agent or Firm:
WOODRUFF, Nathan (200 81 Avenue NW, Edmonton, Alberta T6E 1X2, T6E 1X2, CA)
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