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 (120 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
Paul R Kraus, Robert D McClain, Michael K Poindexter: Method to monitor and control chemical treatment of petroleum, petrochemical and processes with on-line quartz crystal microbalance sensors. Nalco Exxon Energy Chemicals, Robert A Miller, Kelly L Cummings, March 31, 1998: US05734098 (79 worldwide citation)

Thickness-shear mode resonators which simultaneously measure mass deposition and fluid properties can be utilized to monitor petroleum processing, petrochemical and water treatment systems. Specialty chemical additive materials can be accurately and instantaneously added to control conditions detect ...


3
C K Jones, R D Lundberg, F Malekahmadi: Use of breaker chemicals in gelled hydrocarbons. Nalco Exxon Energy Chemicals, R L Graham, July 22, 1997: US05649596 (78 worldwide citation)

Oil degradable granules containing particulate breaker chemical is used in fracturing operations to break hydrocarbon liquid gelled with salts of alkyl phosphate esters. The preferred breaker chemical is powdered Ca(OH).sub.2.


4
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 ...


5
Cruise K Jones, Grahame N Taylor: Gelling agent for hydrocarbon liquid and method of use. Nalco Exxon Energy Chemicals, Michael B Martin, Thomas M Breininger, November 14, 2000: US06147034 (65 worldwide citation)

This invention is directed to a gelling agent composition comprising the reaction product of a high molecular weight gelling agent additive, a low molecular weight phosphate diester acid, and a Group II or Group III metal salt, to methods of preparing the gelling agent composition, to a gelled hydro ...


6
Robert A Marble, Manian Ramesh, Norman Edward Byrne: Method for separating oil from water in petroleum production. Nalco Exxon Energy Chemicals, James J Drake, Robert A Miller, July 1, 1997: US05643460 (44 worldwide citation)

A method for separating emulsified oil from water in petroleum production is disclosed. Low molecular weight polymers of dimethylaminoethyl acrylate methyl chloride and benzyl chloride quaternary salt have good activity as reverse emulsion breakers for freeing oil tied up as a oil-in-water emulsion. ...


7
Veronica K Braden, Paul Fearnside, Christopher J Murphy: Amine blend neutralizers for refinery process corrosion. Nalco Exxon Energy Chemicals, Michael B Martin, Thomas M Breininger, October 12, 1999: US05965785 (32 worldwide citation)

This invention relates to inhibiting corrosion in systems of condensing hydrocarbons which contain water and chlorides, and, more particularly, in the overhead of crude oil atmospheric pipestills, with blends of amines. Preferred blends are 2-amino-1-methoxypropane, sec-butylamine, n-butylamine, dip ...


8
John D Johnson, Shi Liang Fu, Matthew J Bluth, Robert A Marble: Enhanced corrosion protection by use of friction reducers in conjuction with corrosion inhibitors. Nalco Exxon Energy Chemicals, Michael B Martin, Thomas M Breininger, August 17, 1999: US05939362 (23 worldwide citation)

A method of inhibiting corrosion of iron and steel alloys in contact with oil-in-brine emulsions is claimed. The method comprises treating the oil-in-brine emulsions with an effective amount of a water soluble polymer having an average molecular weight of at least one million and an effective amount ...


9
Robert D Mc Clain, Vincent E Lewis: Sulfonate and sulfate dispersants for the chemical processing industry. Nalco Exxon Energy Chemicals, Robert A Miller, James J Drake, July 22, 1997: US05650072 (19 worldwide citation)

The invention provides a method for the inhibition of fouling in petrochemical processes. The method comprises adding from about 0.1 to about 10,000 parts per million sulfonated oils, sulfonated fatty acids, sulfated oils, sulfated fatty acids, or naphthalene sulfonate formaldehyde condensates to a ...


10
John C Newlove, Cruise K Jones, Fati Malekahmadi: Use of breaker chemicals in gelled hydrocarbons. Nalco Exxon Energy Chemicals, Kelly L Cummings, Thomas M Breininger, September 7, 1999: US05948735 (18 worldwide citation)

Oil degradable encapsulated breaker particles are used in fracturing operations to break hydro-carbon liquid gelled with salts of alkyl phosphate esters. The preferred breaker chemical is particulate urea coated with sulfonated EPDM.