초록 ▼

Sulfhydryl compounds, including hydrogen sulfide and mercaptans, may be removed from a fluid or gaseous stream or substrate by reacting the hydrogen sulfide and mercaptans in the stream with a scavenger of the structural formula: wherein R1, R2 and R3 are each independently selected from the group

Sulfhydryl compounds, including hydrogen sulfide and mercaptans, may be removed from a fluid or gaseous stream or substrate by reacting the hydrogen sulfide and mercaptans in the stream with a scavenger of the structural formula: wherein R1, R2 and R3 are each independently selected from the group consisting of R4 and R5, R4 is a C1-C20 straight or branched chain alkyl group, R5 is —(CH)m—NHp—(CH2)nOH, n and m are independently an integer from 2 to about 6, p is from 1 to about 6; and wherein at least one of R1, R2 and R3 is R4 and at least one of R1, R2 and R3 is R5.

대표청구항 ▼

1. A method for scavenging hydrogen sulfide and/or mercaptans from a liquid or gaseous stream which comprises bringing the stream into contact with a scavenging effective amount of at least one triazine of the formula: wherein R1, R2 and R3 are each independently selected from the group consisting o

1. A method for scavenging hydrogen sulfide and/or mercaptans from a liquid or gaseous stream which comprises bringing the stream into contact with a scavenging effective amount of at least one triazine of the formula: wherein R1, R2 and R3 are each independently selected from the group consisting of R4 and R5, R4 is a C1-C20 straight or branched chain alkyl group, R5 is —[(CH)m—NH]p—(CH2)nOH, n and m are independently an integer from 2 to about 6, p is from 1 to about 6; andfurther wherein at least one of R1, R2 and R3 is R4 and at least one of R1, R2 and R3 is R5. 2. The method of claim 1, wherein R5 is —CH2CH2NHCH2CH2OH. 3. The method of claim 1, wherein R4 is a C1-C6 straight or branched chain alkyl group. 4. The method of claim 3, wherein R4 is t-butyl. 5. The method of claim 1, wherein two of R1, R2 and R3 are R5 and one of R1, R2 and R3 is R4. 6. The method of claim 1, wherein the triazine is a mixture of: (i) a first triazine of formula (I) wherein R1 and R2 are R4 and R3 is R5;(ii) a second triazine of formula (I) wherein R1 is R4 and R2 and R3 are R5;(iii) a third triazine of formula (I) wherein R1, R2 and R3 are R4; and(iv) a fourth triazine of formula (I) wherein R1, R2 and R3 are R5 and further wherein the substituent for R4 for each of the triazines of (i), (ii), (iii) and (iv) is the same and the substituent for R5 for each of the triazines of (i), (ii), (iii) and (iv) is the same. 7. The method of claim 6, wherein each R4 of the triazines of (i), (ii), (iii) and (iv) is a C1-C6 alkyl group. 8. The method of claim 7, wherein the C1-C6 alkyl group is t-butyl. 9. The method of claim 6, wherein each R5 of the triazines of (i), (ii), (iii) and (iv) is —CH2CH2NHCH2CH2OH. 10. The method of claim 9, wherein each R4 of the triazines of (i), (ii), (iii) is t-butyl. 11. The method of claim 1, wherein p is 2. 12. A method for reducing an amount of sulfhydryl compounds in a hydrocarbon substrate, comprising mixing the hydrocarbon substrate with a scavenging effective amount of a triazine of the formula: wherein R1, R2 and R3 are each independently selected from the group consisting of R4 and R5, R4 is a C1-C20 straight or branched chain alkyl group, R5 is —[(CH)m—NH]p—(CH2)nOH, n and m are independently an integer from 2 to about 6, p is from 1 to about 6; andfurther wherein at least one of R1, R2 and R3 is R4 and at least one of R1, R2 and R3 is R5. 13. The method of claim 12, wherein R5 is —CH2CH2NHCH2CH2OH. 14. The method of claim 12, wherein R4 is a C1-C6 straight or branched chain alkyl group. 15. The method of claim 14, wherein R4 is t-butyl. 16. The method of claim 12, wherein R4 is t-butyl. 17. The method of claim 12, wherein the hydrocarbon substrate is a wet or dry gaseous mixture of hydrogen sulfide and/or mercaptan and hydrocarbon vapors. 18. The method of claim 17, wherein the hydrocarbon substrate is a sour aqueous or sour hydrocarbon substrate. 19. The method of claim 18, wherein the triazine is a mixture of: (i) a first triazine of formula (I) wherein R1 and R2 are R4 and R3 is R5;(ii) a second triazine of formula (I) wherein R1 is R4 and R2 and R3 are R5;(iii) a third triazine of formula (I) wherein R1, R2 and R3 are R4; and(iv) a fourth triazine of formula (I) wherein R1, R2 and R3 are R5 and further wherein the substituent for R4 for each of the triazines of (i), (ii), (iii) and (iv) is the same and the substituent for R5 for each of the triazines of (i), (ii), (iii) and (iv) is the same. 20. The method of claim 19, wherein each R5 in the first triazine, second triazine, and fourth triazine is —CH2CH2NHCH2CH2OH and each R4 in the first triazine, second triazine, and third triazine is t-butyl.