HYDROGEN SULFIDE SCAVENGERS

• US 20140209510A1
• Filed: 01/30/2014
• Published: 07/31/2014
• Est. Priority Date: 01/30/2013
• Status: Active Grant

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Inventors: Harrington, Ryan Matthew, Anantaneni, Prakasa Rao, Karas, Lawrence J., Ekoue-Kovi, Kekeli
• Granted Patent: US 9,523,045 B2
• Time in Patent Office: Days
• US Class Current: 208/207
• CPC Class Codes: B01D 2252/20405 Monoamines
• CPC Class Codes: B01D 2252/20426 Secondary amines
• CPC Class Codes: B01D 2252/20431 Tertiary amines
• CPC Class Codes: B01D 2252/20484 with one hydroxyl group
• CPC Class Codes: B01D 2252/20489 with two or more hydroxyl groups
• CPC Class Codes: B01D 2252/502 having two or more functionalities in the same molecule other than alkanolamine
• CPC Class Codes: B01D 2252/504 Mixtures of two or more absorbents
• CPC Class Codes: B01D 2252/606 Anticorrosion agents
• CPC Class Codes: B01D 2256/24 Hydrocarbons
• CPC Class Codes: B01D 2257/306 Organic sulfur compounds, e.g. mercaptans
• CPC Class Codes: B01D 53/1468 Removing hydrogen sulfide
• CPC Class Codes: B01D 53/1493 Selection of liquid materials for use as absorbents
• CPC Class Codes: B01D 53/52 Hydrogen sulfide
• CPC Class Codes: C07C 217/08 the oxygen atom of the etherified hydroxy group being further bound to an acyclic carbon atom
• CPC Class Codes: C10G 2300/207 Acid gases, e.g. H2S, COS, SO2, HCN
• CPC Class Codes: C10G 29/20 Organic compounds not containing metal atoms
• CPC Class Codes: C10L 2230/02 Absorbents, e.g. in the absence of an actual absorbent column or scavenger
• CPC Class Codes: C10L 2290/541 Absorption of impurities during preparation or upgrading of a fuel
• CPC Class Codes: C10L 3/103 Sulfur containing contaminants

Abstract

Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas

Claims

1. A compound of formula (I),

2. The compound of claim 1, wherein x+y+z is 3, and R¹, R², and R³ are each alkylenyl.

3. The compound of claim 1, wherein x+y+z is 3, and R¹, R², and R³ are each C₂-alkylenyl.

4. The compound of claim 1, wherein x+y+z is 3, and R¹, R², and R³ are each unsubstituted C₂-alkylenyl.

5. The compound of claim 1, wherein x is 1, y is 1, z is 0, R¹ and R² are each alkylenyl, and R³ is alkyl.

6. The compound of claim 1, wherein x is 1, y is 1, z is 0, R¹ and R² are each C₂-alkylenyl, and R³ is C₁-alkyl.

7. The compound of claim 1, wherein x is 1, y is 1, z is 0, R¹ and R² are each unsubstituted C₂-alkylenyl, and R³ is unsubstituted C₁-alkyl.

8. The compound of claim 1, wherein x is 1, y is 1, z is 0, R¹ and R² are each alkylenyl, and R³ is hydrogen.

9. The compound of claim 1, wherein x is 1, y is 1, z is 0, R¹ and R² are each C₂-alkylenyl, and R³ is hydrogen.

10. The compound of claim 1, wherein x is 1, y is 1, z is 0, R¹ and R² are each unsubstituted C₂-alkylenyl, and R³ is hydrogen.

11. The compound of claim 1, having formula (II),

12. A composition comprising a mixture of compounds of formula (I),

13. The composition of claim 12, wherein when x is 1, y is 1, z is 1, k is 1, l is 1, and m is 1, then R¹, R², and R³ are not simultaneously unsubstituted C₂-alkylenyl.

14. The composition of claim 12, wherein x+y+z is 3, and R¹, R², and R³ are each alkylenyl.

15. The composition of claim 12, wherein x+y+z is 3, and R¹, R², and R³ are each C₂-alkylenyl.

16. The composition of claim 12, wherein x+y+z is 3, and R¹, R², and R³ are each unsubstituted C₂-alkylenyl.

17. The composition of claim 12, wherein x is 1, y is 1, z is 0, R¹ and R² are each alkylenyl, and R³ is alkyl.

18. The composition of claim 12, wherein x is 1, y is 1, z is 0, R¹ and R² are each C₂-alkylenyl, and R³ is C₁-alkyl.

19. The composition of claim 12, wherein x is 1, y is 1, z is 0, R¹ and R² are each unsubstituted C₂-alkylenyl, and R³ is unsubstituted C₁-alkyl.

20. The composition of claim 12, wherein x is 1, y is 1, z is 0, R¹ and R² are each alkylenyl, and R³ is hydrogen.

21. The composition of claim 12, wherein x is 1, y is 1, z is 0, R¹ and R² are each C₂-alkylenyl, and R³ is hydrogen.

22. The composition of claim 12, wherein x is 1, y is 1, z is 0, R¹ and R² are each unsubstituted C₂-alkylenyl, and R³ is hydrogen.

23. A method of sweetening a fluid or gas, comprising treating the fluid or gas with an effective amount of a composition comprising one or more compounds of formula (I),

24. The method of claim 23, wherein the compound of formula (I) has formula (II),

25. The method of claim 23, wherein the composition further comprises at least one compound selected from the group consisting of alkyl benzyl ammonium chloride, benzyl cocoalkyl(C₁₂-C₁₈)dimethylammonium chloride, dicocoalkyl(C₁₂-C₁₈)dimethylammonium chloride, ditallow dimethylammonium chloride, di(hydrogenated tallow alkyl)dimethyl quaternary ammonium methyl chloride, methyl bis(2-hydroxyethyl cocoalkyl(C₁₂-C₁₈)quaternary ammonium chloride, dimethyl(2-ethyl)tallow ammonium methyl sulfate, n-dodecylbenzyldimethylammonium chloride, n-octadecylbenzyldimethyl ammonium chloride, n-dodecyltrimethylammonium sulfate, soya alkyltrimethylammonium chloride, and hydrogenated tallow alkyl(2-ethylhyexyl)dimethyl quaternary ammonium methyl sulfate, or any combination thereof.