PROCESS AND APPARATUS FOR SEPARATING ENTRAINED AMINES FROM A GAS STREAM
First Claim
1. A process for removing acid gases from a gas stream enriched in acid gases, wherein:
- (a) the gas stream enriched in acid gases is contacted in an absorption zone with an absorption medium, wherein the absorption medium is an aqueous medium comprising an amine, to form a gas stream depleted in acid gases which comprises an entrained amine and an absorption medium enriched in acid gases; and
(b) treating the gas stream depleted in acid gases which comprises an entrained amine in a first scrubbing zone with a first scrubbing medium, wherein the first scrubbing medium is an aqueous medium comprising an amine, the amount of amine comprised by the scrubbing medium being about 0 to about 10.0 wt. %, to form a first gas stream depleted in acid gases and in amine and a first scrubbing medium enriched in amine;
wherein the amine has a partition coefficient log P of more than −
0.5 and wherein the scrubbing medium originates from a regeneration unit.
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Abstract
This disclosure relates to a process for removing acid gases from a gas stream enriched in acid gases, wherein: (a) the gas stream enriched in acid gases is contacted in an absorption zone with an absorption medium, wherein the absorption medium is an aqueous medium comprising an amine, to form a gas stream depleted in acid gases which comprises an entrained amine and an absorption medium enriched in acid gases; and (b) treating the gas stream depleted in acid gases which comprises an entrained amine in a scrubbing zone with a scrubbing medium, wherein the scrubbing medium is an aqueous medium comprising an amine, the amount of amine comprised by the scrubbing medium being about 0 to about 10.0 wt. %, to form a gas stream depleted in acid gases and in amine and a scrubbing medium enriched in amine.
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Citations
15 Claims
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1. A process for removing acid gases from a gas stream enriched in acid gases, wherein:
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(a) the gas stream enriched in acid gases is contacted in an absorption zone with an absorption medium, wherein the absorption medium is an aqueous medium comprising an amine, to form a gas stream depleted in acid gases which comprises an entrained amine and an absorption medium enriched in acid gases; and (b) treating the gas stream depleted in acid gases which comprises an entrained amine in a first scrubbing zone with a first scrubbing medium, wherein the first scrubbing medium is an aqueous medium comprising an amine, the amount of amine comprised by the scrubbing medium being about 0 to about 10.0 wt. %, to form a first gas stream depleted in acid gases and in amine and a first scrubbing medium enriched in amine; wherein the amine has a partition coefficient log P of more than −
0.5 and wherein the scrubbing medium originates from a regeneration unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification