Method and apparatus for removing high concentration acid gas from natural gas

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United States of America Patent

PATENT NO 9631154
SERIAL NO

14277255

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Abstract

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A multi-stage process for recovering acid gas from natural gas having high acid gas contents utilizes two or more membrane absorption contactors arranged in series. The first membrane absorption contactor uses a physical solvent to remove a high volume of acid gas transferred across a membrane, and to reduce the acid gas content in the natural gas to a lower level that can be managed using chemical solvents. The second and, if needed, subsequent membrane absorption contactors can use a chemical solvent to remove acid gas transferred across the respective membranes and reduce the acid gas content in the natural gas to very low levels, if needed, depending on product specifications.

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Patent Owner(s)

Patent OwnerAddress
GAS TECHNOLOGY INSTITUTE1700 MOUNT PROSPECT ROAD DES PLAINES IL US 60018-1804

International Classification(s)

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  • 2014 Application Filing Year
  • C10L Class
  • 521 Applications Filed
  • 401 Patents Issued To-Date
  • 76.97 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20142015201620172018201920202021202220230255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Meyer, Howard S Hoffman Estates, US 16 68
Zhou, Shaojun Palatine, US 12 37

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  • 1 Citation Count
  • C10L Class
  • 35.53 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges701206101 - 1011 - 2021 - 300102030405060708090100110120130

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