Russell Glenn Watson

US Patent:

20190185761, Jun 20, 2019

Filed:

Aug 23, 2017

Appl. No.:

16/326035

Inventors:

- St. Paul MN, US
- Bergen op Zoom, NL
Fabrice Cuoq - Beverwijk, NL
Steven Leen - Bree, BE
Carlo Geijselaers - Eindhoven, NL
Andrew R. Neilson - Richmond TX, US
Russell P Watson - Idaho Falls ID, US

International Classification:

C10G 9/16
C10G 75/04
C07C 4/04
C02F 1/68
C23F 14/02
C23F 15/00

Abstract:

Disclosed herein are methods for reducing fouling caused by process water present within a water recycling loop of a pyrolysis plant. Fouling is caused by phase separation and accumulation of materials from the process water on equipment surfaces. The method includes applying a total of about 5 ppm to 500 ppm total of a first polymerization inhibitor and second polymerization inhibitor to the process water to form a treated process water, wherein the first polymerization inhibitor has a pygas-water partition coefficient of about 0.0001 to 9 and the second polymerization inhibitor has a pygas-water partition coefficient of about 1000 to 50,000.

US Patent:

20170183248, Jun 29, 2017

Filed:

Dec 27, 2016

Appl. No.:

15/390987

Inventors:

- St. Paul MN, US
- Bergen op Zoom, NL
Anthoni van Zijl - Eindhoven, NL
Jerome Vachon - Maastricht, NL
Russell P. Watson - Houston TX, US
Theodore C. Arnst - Sugar Land TX, US
Javier Florencio - Reus, ES
Bhaskar R. Aluri - Hyderabad, IN

International Classification:

C02F 5/10

Abstract:

Disclosed herein are methods for reducing fouling caused by process water present within a water recycling loop of a pyrolysis plant. The process water includes water, a pygas, and in some cases pygas byproducts. Fouling is caused by phase separation and accumulation of materials from the process water on equipment surfaces. The method includes applying a total of about 5 ppm to 500 ppm of one or more antifouling polymers to the process water to form a treated process water. The one or more antifouling polymers are selected from the group consisting of copolymers of unsaturated fatty acids, primary diamines, and acrylic acid; copolymers of methacrylamidopropyl trimethylammonium chloride with acrylic acid and/or acrylamide; copolymers of ethylene glycol and propylene glycol; and blends of two or more thereof.

US Patent:

20160272586, Sep 22, 2016

Filed:

Mar 17, 2016

Appl. No.:

15/072780

Inventors:

- St. Paul MN, US
Andrew R. Neilson - Richmond TX, US
Russell P. Watson - Houston TX, US

International Classification:

C07D 211/94
C07C 7/20

Abstract:

The present invention generally relates to compounds and methods for inhibiting the radical polymerization of unsaturated compounds, particularly vinyl monomers. More particularly, it relates to the use of stable hydroxyl amines to inhibit the polymerization of unsaturated compounds (e.g., vinyl monomers) wherein said stable hydroxylamine is soluble in organic solvents, particularly hydrocarbon solvents consisting of unsaturated and, therefore, polymerizable constituents.