Title:
ABSORBENT FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE
Document Type and Number:
WIPO Patent Application WO/2017/055304
Kind Code:
A3
Abstract:
The invention relates to an absorbent for the selective removal of hydrogen sulfide from a fluid stream, containing an aqueous solution, comprising a) a tertiary amine; b) an amine pH promoter, selected from the compounds mentioned in the description; wherein the molar ratio between b) and a) is in the range of 0.05 to 1.0; and c) an acid having a pKa value of less than 6 in an amount such that the pH value of the aqueous solution is 7.9 to less than 8.8 when measured at 120 °C. Furthermore, the invention relates to a method for the removal of acid gases from a fluid stream, in which the fluid stream is brought into contact with the absorbent. The absorbent is characterized by a low regeneration energy.
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Inventors:
VORBERG GERALD (DE)
NOTZ RALF (DE)
INGRAM THOMAS (DE)
SIEDER GEORG (DE)
KATZ TORSTEN (DE)
GRUENANGER CHRISTIAN (DE)
DEGLMANN PETER (DE)
NOTZ RALF (DE)
INGRAM THOMAS (DE)
SIEDER GEORG (DE)
KATZ TORSTEN (DE)
GRUENANGER CHRISTIAN (DE)
DEGLMANN PETER (DE)
Application Number:
PCT/EP2016/073025
Publication Date:
May 26, 2017
Filing Date:
September 28, 2016
Export Citation:
Assignee:
BASF SE (DE)
International Classes:
B01D53/14
Foreign References:
| US20100288125A1 | 2010-11-18 | |||
| US4892674A | 1990-01-09 | |||
| FR3001157A1 | 2014-07-25 | |||
| US20080236390A1 | 2008-10-02 | |||
| EP2532412A1 | 2012-12-12 | |||
| EP2990090A1 | 2016-03-02 |
Attorney, Agent or Firm:
REITSTÖTTER KINZEBACH (DE)
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