1
Pat A Mestetsky, Robert E Davis: Method of cleaning using a foamed liquid. United Laboratories, Andrus Sceales Starke & Sawall, October 31, 1995: US05462607 (14 worldwide citation)

A method of cleaning industrial equipment by utilizing an ebullated aqueous solution containing a surfactant and enzymes. The aqueous solution is preferably heated in a vessel, such as a batch coker fractionator in an oil refinery, to a temperature sufficient to ebullate or foam the solution and gen ...


2
Bevan C Collins, Pat A Mestetsky: Method of treating crude oil with an amine oxide compound. United Laboratories International, Andrus Sceales Starke & Sawall, August 22, 2000: US06106700 (10 worldwide citation)

An aqueous composition containing an amine oxide surfactant, and preferably containing an amine oxide surfactant and enzymes, is added to crude oil, preferably by injecting the composition into the oil well, or adding the composition to pipelines or tankage containing the oil. An acid can also be us ...


3
Pat A Mestetsky: Method of separating oily materials from wash water. United Laboratories, Andrus Sceales Starke & Sawall, October 17, 1995: US05459066 (9 worldwide citation)

A method of separating oleophilic-hydrophobic material from wash water is disclosed. The method includes the steps of mixing with the wash water, about 30-2100 ppm of a surfactant having the formula: ##STR1## where n is 6-20; and about 1-200 ppm of an enzyme chosen from among proteases, amylases, li ...


4
Bevan C Collins, Nicholas J Savaiano, Pat A Mestetsky: Method of removing sulfur compounds from hydrocarbon streams. United Laboratories International, Thomas R Weaver, November 9, 1999: US05980733 (9 worldwide citation)

A method of removing hazardous sulfur compounds, such as hydrogen sulfide, mercaptans and sulfur oxides, from a fluid stream comprising contacting the fluid stream with an aqueous composition comprised of a tertiary amine oxide. The amine oxide reacts with the hazardous sulfur compounds to eliminate ...


5
Bevan C Collins, Pat A Mestetsky, Nicholas J Savaiano: Method of removing sulfur compounds from sour crude oil and sour natural gas. United Laboratories, September 15, 1998: US05807476 (7 worldwide citation)

A method of removing hazardous sulfur compounds, such as hydrogen sulfide and sulfur dioxide, from sour crude oil and sour natural gas. An aqueous composition of an amine oxide surfactant, and preferably a mixture of an amine oxide surfactant and enzymes, is mixed with the sour crude oil or sour nat ...


6
Pat A Mestetsky: Method of separating oleophilic-hydrophobic material from wash water. United Laboratories, Andrus Sceales Starke & Sawall, August 26, 1997: US05660732 (2 worldwide citation)

A method of separating oleophilic-hydrophobic material from wash water is disclosed. The method comprises the steps of mixing with the wash water, either alone or in combination, about 30-2100 ppm of a surfactant having the formula: ##STR1## where n is 6-20; and about 1-200 ppm of an enzyme selected ...


7
Pat A Mestetsky: Method of cleaning contaminated industrial equipment. United Laboratories International, Andrus Sceales Starke & Sawall, November 11, 1997: US05686297 (2 worldwide citation)

A method of cleaning contaminated industrial equipment. An aqueous solution containing an enzyme and a surfactant having the formula: ##STR1## where n is 6-20, is agitated in contact with the equipment to remove oil contamination and provide a water/oil dispersion. The water/oil dispersion is then p ...


8
Pat A Mestetsky: Method of cleaning using a foamed liquid. United Laboratories, Andrus Sceales Starke & Sawall, September 3, 1996: US05551989 (1 worldwide citation)

A method of cleaning industrial equipment by utilizing an ebullated aqueous solution containing an amine oxide surfactant. The aqueous solution is preferably heated in a vessel, such as a batch coker fractionator in an oil refinery, to a temperature sufficient to ebullate or foam the solution and ge ...