Claims
- 1. A process for removing hydrogen sulfide from a fluid stream comprising the step of:
- contacting said fluid stream under absorbing conditions with an absorption composition consisting essentially of a calcined mixture of zinc oxide, silica and a fluorine-containing acid.
- 2. A process as recited in claim 1 wherein said silica is selected from the group consisting of diatomite, silicalite, silica colloid, flame-hydrolyzed silica, precipitated silica and combinations of any two or more thereof.
- 3. A process as recited in claim 2 wherein said fluorine-containing acid is selected from the group consisting of dihydrogen hexafluorotitanate, tetrafluorboric acid, phosphorofluoridic acid, hydrogen hexafluorophosphate, dihydrogen hexafluorosilicate, hydrofluoricacid, and combinations of any two or more thereof.
- 4. A process as recited in claim 3 wherein said fluorine-containing acid has a concentration in the range of from about 0.1 to about 25 parts by weight per 100 parts by weight of zinc oxide and silica and said composition is in the form of an extrudable paste.
- 5. A process as recited in claim 4 wherein said composition is in the form of a calcined extrudate.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a division of application Ser. No. 07/542,996, filed Jun. 25, 1990 issued as U.S. Pat. No. 5,077,261 on Dec. 31, 1991.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
Country |
Parent |
542996 |
Jun 1990 |
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