Allan Thomas

US Patent:

56743777, Oct 7, 1997

Filed:

Jun 19, 1995

Appl. No.:

8/491396

Inventors:

Daniel S. Sullivan - Houston TX
Allan R. Thomas - Houston TX
Mark A. Edwards - La Porte TX
Grahame N. Taylor - Houston TX
Paul Yon-Hin - Houston TX
Juan M. Garcia - Sugar Land TX

Assignee:

Nalco/Exxon Energy Chemicals, L.P. - Sugarland TX

International Classification:

C10G 4500

US Classification:

208208R

Abstract:

Gaseous or liquid hydrocarbon is treated with a scavenging compound comprising an oil soluble 1,3,5-trihexahydro-1,3,5-tert. -butyltriazine. The compound is an effective nonregenerated scavenger for oil field produced fluids, particularly sour hydrocarbon liquids.

US Patent:

57440247, Apr 28, 1998

Filed:

Oct 12, 1995

Appl. No.:

8/542462

Inventors:

Daniel S. Sullivan - Houston TX
Allan R. Thomas - Houston TX
Juan M. Garcia - Sugar Land TX
Paul Yon-Hin - Houston TX

Assignee:

Nalco/Exxon Energy Chemicals, L.P. - Sugar Land TX

International Classification:

C10G 2920

US Classification:

208236

Abstract:

Reaction of 1,3,5-tri-substituted-hexahydro-1,3,5-triazine is accelerated in H. sub. 2 S scavenging by the addition of quaternary ammonium compound. The preferred hexahydro triazines are 1,3,5-tri-methyl-hexahydro-1,3,5-triazines and 1,3,5-tri-methoxypropyl-hexahydro-1,3,5-triazines. The blend of the hexahydro triazine and quaternary ammonium compounds can be used to treat sour gases and liquids (e. g. sour kerosene, crude oil, fuel oils, heating oils, distillate fuels, bunker fuel oil, and the like.