1
Daniel S Sullivan III, Allan R Thomas, Mark A Edwards, Grahame N Taylor, Paul Yon Hin, Juan M Garcia III: Method of treating sour gas and liquid hydrocarbon. Nalco Exxon Energy Chemicals, R L Graham, October 7, 1997: US05674377 (123 worldwide citation)

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.


2
Daniel S Sullivan III, Allan R Thomas, Juan M Garcia III, Paul Yon Hin: Method of treating sour gas and liquid hydrocarbon. Nalco Exxon Energy Chemicals, Thomas M Breininger, Kelly L Cummings, Robert L Graham, April 28, 1998: US05744024 (77 worldwide citation)

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 ...