1
Eugene R Thomas, P Scott Northrop, Hua Hu: Acid gas disposal method. ExxonMobil Upstream Research Company, October 31, 2006: US07128150 (121 worldwide citation)

This invention is method of recovering gas from a gas-bearing subterranean formation in which gas is produced from an upper portion of the formation and a waste gas is injected into a lower portion of the formation to dispose of the waste gas. The waste gas is injected within a 3000 foot (914 m) rad ...


2
Christopher W Sparling, P Scott Northrop, Johnny E Johnson, Jagannathan N Iyengar, Barry M Friedman: Methods for removing sulfur-containing compounds. ExxonMobil Upstream Research Company, ExxonMobil Upstream Research Company Law Department, February 16, 2010: US07662215 (13 worldwide citation)

A method for removing sulfur-containing compounds is provided. In one embodiment, the method includes selectively separating a feed stream (118) comprising carbon dioxide and one or more sulfur-containing compounds, including hydrogen sulfide, at conditions sufficient to produce a first stream (122) ...


3
Narasimhan Sundaram, P Scott Northrop: Kinetic fractionators, and cycling processes for fractionation of gas mixtures. ExxonMobil Upstream Research Company, ExxonMobil Upstream Research Company Law Department, December 30, 2014: US08921637 (7 worldwide citation)

A process for separating methane from a natural gas mixture employs pressure swing adsorption in one or more vessels. Each vessel has an adsorbent material having a kinetic selectivity for contaminants over methane greater than 5. Contaminants within the natural gas mixture become gases kinetically ...


4
P Scott Northrop, Francis S Wu, Margaret Wu legal representative, Narasimhan Sundaram: Method of purifying hydrocarbons and regeneration of adsorbents used therein. ExxonMobil Upstream Research Company, ExxonMobil Upstream Research Company Law Department, September 11, 2012: US08262773 (6 worldwide citation)

An improved method is provided for removing contaminants from a hydrocarbon stream, such as a stream of raw natural gas. The contaminated hydrocarbon stream is passed through a first adsorbent bed containing molecular sieves to adsorb contaminants on the molecular sieves, thereby removing at least s ...


5
Narasimhan Sundaram, P Scott Northrop: Kinetic fractionators, and cycling processes for fractionation of gas mixtures. ExxonMobil Upstream Research Company, ExxonMobil Upstream Research Company Law Department, May 12, 2015: US09028595 (6 worldwide citation)

A process for separating methane from a natural gas mixture employs pressure swing adsorption in one or more vessels. Each vessel has an adsorbent material having a kinetic selectivity for contaminants over methane greater than 5. Contaminants within the natural gas mixture become gases kinetically ...


6
Harry W Deckman, Preeti Kamakoti, Peter I Ravikovitch, Bruce T Kelley, P Scott Northrop, Peter C Rasmussen, Paul L Tanaka, Martin N Webster, Wieslaw J Roth, Edward W Corcoran Jr: Method and apparatus for removal of oil from utility gas stream. ExxonMobil Upstream Research Company, ExxonMobil Upstream Research Company, July 31, 2018: US10035096

The present application is directed to a method and system for preparing gaseous utility streams from gaseous process streams, particularly, removing oil contamination from such streams prior to use in a dry gas seal. The methods and systems may include at least one kinetic swing adsorption process ...


7
P Scott Northrop: Generating elemental sulfur. ExxonMobil Upstream Research Company, ExxonMobil Upstream Research Company Law Department, November 29, 2016: US09504984

Techniques for generating elemental sulfur are provided herein. The disclosed methods may include a gas processing system including a processed feed gas. The methods may include a distillation column configured to receive the processed feed gas and to generate a high-pressure acid gas stream. The me ...


8
Robert D Denton, P Scott Northrop, Ananda K Nagavarapu: Method and system of controlling a temperature within a melt tray assembly of a distillation tower. ExxonMobil Upstream Research Company, ExxonMobil Upstream Research Company — Law Department, November 21, 2017: US09823017

A method and system of controlling a temperature within a melt tray assembly of a distillation tower. The method may include determining a melt tray fluid composition of a melt tray fluid, determining a melt tray fluid temperature of the melt tray fluid, determining if the melt tray fluid temperatur ...


9
P Scott Northrop, Jaime A Valencia: Method and system for separating fluids in a distillation tower. ExxonMobil Upstream Research Company, ExxonMobil Upstream Research Company Law Department, August 22, 2017: US09739529

A method and system for separating fluids in a distillation tower. The method may include feeding a stream to the distillation tower, wherein the stream includes carbon dioxide, reducing a carbon dioxide concentration of the stream received by the rectifier section by feeding a first cryogenic fluid ...


10
Dag O Calafell, P Scott Northrop: Adsorbing contaminants from a gas stream. ExxonMobil Upstream Research Company, ExxonMobil Upstream Research Company, July 10, 2018: US10016717

A method and systems for adsorbing contaminants from a gas stream are provided herein. The method includes flowing the gas stream into a treating vessel and through a moving bed of adsorbents. The method includes flowing the adsorbents out of the treating vessel and into a fluidized bed of a regener ...