Basf Se Corporation

Steven Brughmans

Johann-Peter Melder

Ulrich Müller

Georg Sieder

Torsten Katz

Natalia Trukhan

Ute Lichtfers

Roland Bou Chedid

Hugo Rafael Garcia Andarcia

Peter Raatz

Falk Simon

Kevin Huyghe

Oliver Spuhl

An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution of A) at least one cyclic amine compound having solely tertiary amine groups and/or sterically hindered secondary amine groups and B) at least one cyclic amine compound having at least one sterically unhindered secondary amine group. The absorption medium comprises, e.g., an aqueous solution of A) 1-hydroxyethylpiperidine and/or triethylenediamine and B) piperazine. The absorption medium is particularly suitable for separating off carbon dioxide from flue gases and satisfies the following criteria: (i) sufficient capacity at low COpartial pressures; (ii) sufficiently rapid absorption rate at low COpartial pressures; (iii) stability toward oxygen; (iv) low vapor pressure for reducing solvent losses; and (v) low energy requirement for regeneration of the absorption medium.

Cyclic-amine-comprising absorption medium for removing acid gases

Process for preparing tri-n-propylamine (TPA), wherein di-n-propylamine (DPA) is reacted in the presence of hydrogen and a copper-comprising heterogeneous catalyst. An integrated process for preparing TPA, which comprises the following operations:

Process for preparing tri-n-propylamine (TPA)

A process for preparing 2-(2-tert-butylaminoethoxy)ethanol (tert-butylaminodiglycol, TBADG) by reacting diethylene glycol (DG) with tert-butylamine (TBA) in the presence of hydrogen and of a copper catalyst, by effecting the reaction at a temperature in the range from 160 to 220&#xb0; C. in the presence of a copper- and aluminum oxide-containing catalyst, where the catalytically active material of the catalyst, before the reduction thereof with hydrogen, comprises

Process for preparing 2-(2-tert-butylaminoethoxy)ethanol (tert-butylaminodiglycol, TBADG)

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Mannheim, Germany

Steven Brughmans