Invention Grant
- Patent Title: System and method to remove organic acid from a rich MEG stream by stripping
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Application No.: US15675260Application Date: 2017-08-11
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Publication No.: US10144686B2Publication Date: 2018-12-04
- Inventor: Steven Langley , David John Knight
- Applicant: Cameron Solutions, Inc.
- Applicant Address: US TX Houston
- Assignee: Cameron Solutions, Inc.
- Current Assignee: Cameron Solutions, Inc.
- Current Assignee Address: US TX Houston
- Agency: Gable Gotwals
- Main IPC: C07C29/76
- IPC: C07C29/76 ; B01D3/00 ; B01D53/00 ; B01D53/78 ; C10L3/10 ; B01D3/34 ; C07C51/41 ; B01D3/14 ; C07C29/80 ; B01D53/72

Abstract:
A system and method for removing acetic acid and other short chain fatty acids described as organic acid from a rich mono-ethylene glycol (“MEG”) solution does so by stripping the organic acid from the rich MEG solution by contacting the solution with a gas, the gas being nitrogen or a fuel gas such as methane; and stripping the organic acid from the gas by contacting the gas with a caustic solution such as a dilute sodium hydroxide solution. The stripping steps take place in respective stripping columns. A portion of the gas exiting the gas/organic acid stripping column can be recycled to the MEG/organic acid stripping column to reduce total gas usage. A portion of the waste stream exiting the gas/organic acid stripping column can be recycled back to the gas/organic acid stripping column to reduce the amount of caustic solution used as well as the amount of waste.
Public/Granted literature
- US20180029963A1 System And Method To Remove Organic Acid From A Rich MEG Stream By Stripping Public/Granted day:2018-02-01
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