公开(公告)号：AU2007291278B2

公开(公告)日：2011-07-21

申请号：AU2007291278

申请日：2007-08-27

Applicant: BASF SE

Inventor： VOLKER SCHUDA ,  RUPERT WAGNER ,  UTE LICHTFERS

IPC: B01D53/14

Abstract: The invention relates to an absorbent, comprising an aqueous solution (A) of at least one amino acid salt of the formula (I), wherein R and R independently from each other represent alkyl or hydroxyalkyl, R is hydrogen, alkyl or hydroxyalkyl, or a group R together with R is alkylene, M is an alkali metal, and n an integer from 1 to 6, and (B) of at least one primary alkanolamine, which is substantially free of inorganic alkaline salts. The absorbent is used in a method for removing carbon dioxide from a gas flow, particularly combustion exhaust gases. Preferred amino acid salts (A) are N,N-dimethylamino acetic acid potassium salt, N,N-diethylamino acetic acid potassium salt and N-ethyl-N-methylamino acetic acid-potassium salt. Preferred alkanolamines (B) are 2-aminoethanol, 3-aminopropanol, 4-aminobutanol, 2-aminobutanol, 5-aminopentanol, 2-aminopentanol and 2-(2-aminoethoxy)ethanol.

公开(公告)号：MY146804A

公开(公告)日：2012-09-28

申请号：MYPI20084638

申请日：2007-05-15

Applicant: BASF SE

Inventor： RUPERT WAGNER ,  UTE LICHTFERS ,  NORBERT ASPRION

IPC: B01D53/14

Abstract: A PROCESS FOR REMOVING ACID GASES FROM A HYDROCARBONACEOUS FLUID STREAM OR AN OXYGEN-COMPRISING FLUID STREAM IN WHICH THE FLUID STREAM IS CONTACTED WITH AN AQUEOUS SOLUTION WHICH IS ESSENTIALLY FREE FROM INORGANIC BASIC SALTS AND COMPRISES (I) AT LEAST ONE AMINE AND (II) AT LEAST ONE METAL SALT OF AN AMINOCARBOXYLIC ACID AND/OR AN AMINOSULFONIC ACID. CONJOINT USE OF THE AMINOCARBOXYLIC AND/OR AMINOSULFONIC SALT REDUCES THE COABSORPTION OF HYDROCARBONS OR OXYGEN WITHOUT SIGNIFICANTLY IMPAIRING THE ABSORPTION RATE AT WHICH ACID GASES ARE ABSORBED; WITHOUT SIGNIFICANTLY REDUCING THE ABSORPTION CAPACITY OF THE SOLUTION FOR ACID GASES, AND WITHOUT SIGNIFICANTLY INCREASING THE ENERGY DEMAND REQUIRED FOR REGENERATION.