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1. (WO2018107006) TOP-PRESSURE RECOVERY TURBINE DEPOSITION CONTROL
유의사항: 이 텍스트는 자동적으로 광학문자인식(OCR) 처리된 텍스트입니다. 법적 용도로는 PDF 버전을 사용하십시오.

CLAIMS:

1. A method of reducing deposition of blast furnace gas solids in a top-pressure recovery turbine in a metal-producing process, the method comprising: adding a composition comprising ammonia to a top-pressure recovery turbine.

2. The method of claim 1, wherein the composition further comprises an amine.

3. The method of claim 2, wherein the amine is a compound of formula (I)


formula (I)

wherein X is selected from O, S, or CH2 and R1 is selected from hydrogen, halogen, Ci-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, or aryl, or X is R2 and each R1 and R2 is the same or different and is selected from hydrogen, halogen, Ci-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, or aryl; and wherein each m and n is the same or different and is selected from 0, 1, or 2.

4. The method of claim 3, wherein the compound of formula (I) is morpholine.

5. The method of claim 2, wherein the amine is a compound of formula (II)


formula (I I)

wherein X is O, NR2, S, or CH2; each R1 and R2 is the same or different and is selected from hydrogen, halogen, Ci-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, or aryl; and each m and n is the same or different and is selected from 0, 1, or 2.

6. The method of claim 5, wherein the compound of formula (II) is

cyclohexylamine.

7. The method of any one of claims 1-6, wherein ammonia and the amine are at a molar ratio of from about 1 : 1 to about 20: 1.

8. The method of claim 1, wherein the composition comprises 10 - 25% ammonia, 5 - 10% cyclohexylamine, 5 - 10% morpholine, and 45 - 80% water.

9. The method of any one of claims 2-7, wherein the amine has a boiling point of from about -40° C to about 175° C.

10. The method of any one of claims 1-9, wherein the composition comprising ammonia is injected as an aqueous liquid into blast furnace gas in the top-pressure recovery turbine.

11. The method of any one of claims 1-10, wherein the top-pressure recovery turbine is a dry-type top-pressure recovery turbine.

12. Use of a composition comprising ammonia in a top-pressure recovery turbine.

13. A method of reducing deposition of blast furnace gas solids in a top-pressure recovery turbine in a metal-producing process, the method comprising adding a composition comprising at least one amine to a top-pressure recovery turbine.

14. The method of claim 13, wherein the amine has a molecular weight of from about 15 g/mol to about 250 g/mol.

15. The method of claim 13, wherein the amine is a compound of formula (I)


formula (I)

wherein X is selected from O, S, or CH2 and R1 is selected from hydrogen, halogen, Ci-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, or aryl, or X is NR2 and each R1 and R2 is the same or different and is selected from hydrogen, halogen, Ci-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, or aryl; and wherein each m and n is the same or different and is selected from 0, 1, or 2.

16. The method of claim 15, wherein the compound of formula (I) is morpholine.

17. The method of claim 13, wherein the amine is a compound of formula (II)


formula (I I)

wherein X is O, R2, S, or CH2; each R1 and R2 is the same or different and is selected from hydrogen, halogen, Ci-Cs alkyl, C2-Cs alkenyl, C2-Cs alkynyl, or aryl; and each m and n is the same or different and is selected from 0, 1, or 2.

18. The method of claim 17, wherein the compound of formula (II) is

cyclohexylamine, diethylamine, monoethanolamine, or a combination thereof.

19. The method of claim 13, wherein the amine is a compound of formula (III)


formula (I I I)

wherein each R1 and R2 is the same or different and is selected from hydrogen, halogen, Ci-Cs alkyl, Ci-Cs alkanol, C2-Cs alkenyl, C2-Cs alkynyl, or aryl.

20. Use of a composition comprising a compound of formula (I), (II), or (III) in a top-pressure recovery turbine.