METHOD TO DECREASE DECOMPOSITION PRODUCTS IN SOLUTIONS THAT ABSORB ACIDIC GASES SUCH AS CARBON DIOXIDE AND THE LIKE IN THE PRESENCE OF OXYGEN
First Claim
Patent Images
1. A method comprising:
- treating a liquid or gas feed stream with an amine solvent solution;
adding an amine additive to the amine solvent solution, the liquid or gas feed stream, or both; and
in response thereto, decreasing the presence of an amine-derived contaminant, decreasing degradation of the amine in the amine solvent solution, or both as compared to that which would have occurred in an amine additive-free amine solvent solution, liquid or gas, or both.
1 Assignment
0 Petitions
Accused Products
Abstract
An amine solvent solution that is useful in absorbing acid gases from a liquid or gas feed stream may have an amine additive added thereto. Additionally or alternatively, the amine additive may be added to a liquid or gas feed stream. The addition of the amine additive decreases the presence of amine-derived contaminants and/or degradation of amine in the amine solvent solution. As such, the amine solvent solution is available for effective reuse in treating the liquid or gas feed stream and there may be a decrease in the corrosion within an amine treating system.
-
Citations
18 Claims
-
1. A method comprising:
-
treating a liquid or gas feed stream with an amine solvent solution; adding an amine additive to the amine solvent solution, the liquid or gas feed stream, or both; and in response thereto, decreasing the presence of an amine-derived contaminant, decreasing degradation of the amine in the amine solvent solution, or both as compared to that which would have occurred in an amine additive-free amine solvent solution, liquid or gas, or both. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A composition comprising:
-
an amine additive selected from one or more of;
aminoethylethanolamine, tetraethylenepentamine, dimethylaminopropylamine, and a polyalkyleneamine;an amine solvent solution selected from one or more of;
monoethanolamine, diethanolamine, triethanolamine, dimethylethanolamine, N-methyldiethanolamine, monomethylethanolamine, 2-(2-aminoethoxy)ethanol, aminoethylethanolamine, diisopropanolamine, piperazine, and derivatives thereof; andwater. - View Dependent Claims (16, 17, 18)
-
Specification