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Molten hydroxide membrane for separation of acid gases from emissions

Patent ·
OSTI ID:1600237

In one embodiment, a separation membrane includes: a porous support structure; and at least one alkali metal hydroxide disposed within pores of the porous support structure. In another embodiment, a method for separating acidic gases from a gas mixture includes exposing the gas mixture to a separation membrane at an elevated temperature, where the separation membrane includes a porous support and at least one molten alkali metal hydroxide disposed within pores of the porous support.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
10,464,015
Application Number:
15/159,681
OSTI ID:
1600237
Country of Publication:
United States
Language:
English

References (4)

Steam-promoted CO2 flux in dual-phase CO2 separation membranes journal May 2015
Ionic conducting ceramic and carbonate dual phase membranes for carbon dioxide separation journal November 2012
Carbonate–ceramic dual-phase membrane for carbon dioxide separation journal July 2010
Capture and electrochemical conversion of CO2 to value-added carbon and oxygen by molten salt electrolysis journal January 2013

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