Process for removal of acid gases from a fluid stream
US-2019381448-A1 · Dec 19, 2019 · US
Process for removal of acid gases from a fluid stream
US12427472B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12427472-B2 |
| Application number | US-202017641845-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 31, 2020 |
| Priority date | Sep 10, 2019 |
| Publication date | Sep 30, 2025 |
| Grant date | Sep 30, 2025 |
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Abstract
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A process for removing acid gases from a fluid stream, wherein the fluid stream is contacted with an absorbent to obtain a treated fluid stream and a laden absorbent, the absorbent comprising at least one diluent and a compound of the general formula (I) wherein R1 is C 1 -C 3 -alkyl; R2 is C 1 -C 3 -alkyl; R3 is selected from hydrogen and C1-C3-alkyl; R4 is selected from hydrogen and C 1 -C 3 -alkyl and n is an integer in the range of 1 to 4.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for removing acid gases from a fluid stream, wherein the fluid stream is contacted with an absorbent to obtain a treated fluid stream and a laden absorbent, the absorbent comprising at least one diluent and a compound of the general formula (I) wherein R1 is C 1 -C 3 -alkyl; R2 is C 1 -C 3 -alkyl; R3 is selected from hydrogen and C 1 -C 3 -alkyl; R4 is selected from hydrogen and C 1 -C 3 -alkyl and n is an integer in the range of 1 to 4. 2. The process according to claim 1 , wherein each of R1, R2 and R3 are C 1 -alkyl. 3. The process according to claim 1 , wherein the compound of general formula (I) is 2-[2-(tert-butylamino)ethylsulfanyl]ethanol. 4. The process according to claim 1 , wherein the at least one diluent comprises water. 5. The process according to claim 4 , wherein the absorbent additionally comprises an acid. 6. The process according to claim 1 , wherein the at least one diluent comprises a non-aqueous organic solvent. 7. The process according to claim 6 , wherein the organic solvent is selected from C 4-10 alcohols, ketones, esters, lactones, amides, lactams, sulfones, sulfoxides, glycols, polyalkylene glycols, di- or mono (C 1 -C 4 alkyl ether) glycols, di- or mono (C 1-4 -alkyl ether) polyalkylene glycols, cyclic ureas, thioalkanols and mixtures thereof. 8. The process according to claim 1 , wherein the absorbent comprises at least one activator selected from a sterically unhindered primary amine and/or a sterically unhindered secondary amine. 9. The process according to claim 8 , wherein the at least one activator is piperazine. 10. The process according to claim 1 , wherein the acid gases comprise hydrogen sulfide and the fluid stream comprises carbon dioxide and hydrogen sulfide. 11. The process according to claim 1 , wherein the laden absorbent is regenerated by means of at least one of the measures of heating, decompressing and stripping with an inert fluid.
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Classifications
by reactions not involving the formation of sulfide groups · CPC title
Hydrogen sulfide · CPC title
Activators, promoting agents, catalytic agents or enzymes · CPC title
with one hydroxyl group · CPC title
Monoamines · CPC title
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- What does patent US12427472B2 cover?
- A process for removing acid gases from a fluid stream, wherein the fluid stream is contacted with an absorbent to obtain a treated fluid stream and a laden absorbent, the absorbent comprising at least one diluent and a compound of the general formula (I) wherein R1 is C 1 -C 3 -alkyl; R2 is C 1 -C 3 -alkyl; R3 is selected from hydrogen and C1-C3-alkyl; R4 is selected from hydrogen and C 1 -C 3 …
- Who is the assignee on this patent?
- Basf Se
- What technology area does this patent fall under?
- Primary CPC classification B01D53/1468. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 30 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).