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Title: Acidic gas capture by diamines

Abstract

Compositions and methods related to the removal of acidic gas. In particular, the present disclosure relates to a composition and method for the removal of acidic gas from a gas mixture using a solvent comprising a diamine (e.g., piperazine) and carbon dioxide. One example of a method may involve a method for removing acidic gas comprising contacting a gas mixture having an acidic gas with a solvent, wherein the solvent comprises piperazine in an amount of from about 4 to about 20 moles/kg of water, and carbon dioxide in an amount of from about 0.3 to about 0.9 moles per mole of piperazine.

Inventors:
 [1];  [2]
  1. Austin, TX
  2. Missouri City, TX
Issue Date:
Research Org.:
University of Texas
Sponsoring Org.:
USDOE
OSTI Identifier:
1021881
Patent Number(s):
7938887
Application Number:
12/349,627
Assignee:
Board of Regents, The University of Texas System (Austin, TX)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
FC26-02NT41440
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Rochelle, Gary, and Hilliard, Marcus. Acidic gas capture by diamines. United States: N. p., 2011. Web.
Rochelle, Gary, & Hilliard, Marcus. Acidic gas capture by diamines. United States.
Rochelle, Gary, and Hilliard, Marcus. Tue . "Acidic gas capture by diamines". United States. https://www.osti.gov/servlets/purl/1021881.
@article{osti_1021881,
title = {Acidic gas capture by diamines},
author = {Rochelle, Gary and Hilliard, Marcus},
abstractNote = {Compositions and methods related to the removal of acidic gas. In particular, the present disclosure relates to a composition and method for the removal of acidic gas from a gas mixture using a solvent comprising a diamine (e.g., piperazine) and carbon dioxide. One example of a method may involve a method for removing acidic gas comprising contacting a gas mixture having an acidic gas with a solvent, wherein the solvent comprises piperazine in an amount of from about 4 to about 20 moles/kg of water, and carbon dioxide in an amount of from about 0.3 to about 0.9 moles per mole of piperazine.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {5}
}

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Works referenced in this record:

Alternative stripper configurations for CO2 capture by aqueous amines
journal, January 2007