1
Daniel P Leta, Preeti Kamakoti, Jack W Johnson, Peter I Ravikovitch, Harry Deckman: Selective sulfur removal process. ExxonMobil Research and Engineering Company, Andrew T Ward, David M Weisberg, Malcolm D Keen, April 14, 2015: US09005561 (11 worldwide citation)

A cyclic process for selectively separating hydrogen sulfide from a gas mixture including CO2 is operated by contacting the gas mixture under sorption conditions with a non-aqueous sorbent comprising a basic non-protogenic nitrogenous compound to react the H2S with the basic compound so that the H2S ...


2
Harry W Deckman, Peter I Ravikovitch, Preeti Kamakoti, Chris Yoon: Selectivation of adsorbents for gas separation. ExxonMobil Research and Engineering Company, David M Weisberg, Andrew T Ward, August 4, 2015: US09095809 (10 worldwide citation)

Systems and methods are provided for improving separation of gas phase streams using an adsorbent, such as 8-member ring zeolite adsorbents or DDR type zeolite adsorbents. Suitable gas phase streams can include at least one hydrocarbon, such as methane or a hydrocarbon containing at least one satura ...


3
Preeti Kamakoti, Edward W Corcoran, Ronald R Chance, Sebastian C Reyes: Identification and use of an isomorphously substituted molecular sieve material for gas separation. ExxonMobil Research and Engineering Company, David M Weisberg, Andrew T Ward, January 27, 2015: US08939014 (10 worldwide citation)

The identification, synthesis, and use of an isomorphously substituted molecular sieve material having structural frameworks substituted with a preselected substitution element for a framework element of the molecular sieve material can result in a preferred transport controlling window size range f ...


4
Man Kit Ng, Glen B Brons, Steven W Levine, Kevin Mallory, Hong Cheng, Patrick Brant, Donna J Crowther: Polyalkylene epoxy polyamine additives for fouling mitigation in hydrocarbon refining processes. ExxonMobil Research and Engineering Company, Glenn T Barrett, Andrew T Ward, February 10, 2015: US08951409 (7 worldwide citation)

The present invention provides a method for reducing fouling, including particulate-induced fouling, in a hydrocarbon refining process including the steps of providing a crude hydrocarbon for a refining process and adding an antifouling agent containing a polymer base unit and a polyamine group to t ...


5
John T Farrell, San Chhotray, Gary T Dobbs, Manuel S Alvarez, Patrick D Schweitzer: System and method for controlling fired heater operations. ExxonMobil Research and Engineering Company, Glenn T Barrett, Andrew T Ward, January 6, 2015: US08926317 (4 worldwide citation)

Method of controlling the operation of a combustion device to provide safe and reliable operation while reducing NOx emission that includes providing a flow of fuel and diluent at a determined volume ratio to a flame in the combustion device; providing a flame stability sensor to generate a measurem ...


6
ManKit NG, Glen Barry Brons, Matthew W Holtcamp, Donna J Crowther, Patrick Brant, Hong Cheng, Clarence Chase: Ring opening cross metathesis of vinyl terminated polymers and their functionalized derivatives for fouling mitigation in hydrocarbon refining processes. EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Glenn T Barrett, Andrew T Ward, May 10, 2016: US09334460 (2 worldwide citation)

A compound useful for reducing fouling in a hydrocarbon refining process is provided. A method for preparing the compound includes functionalizing a polymer having a vinyl chain end to obtain a terminal group having one or more anhydride units, and reacting the anhydride units with a polyamine. Meth ...


7
ManKit Ng, Mohsen Shahmirzadi Yeganeh, Timothy Andrew Barckholtz, Glen Barry Brons, Hong Cheng, Geoffrey Marshall Keiser, Donna J Crowther, Patrick Brant, David T Ferrughelli, Clarence Chase, Emmanuel Ulysse, Edward A Lemon: Functionalized polymers containing polyamine succinimide for antifouling in hydrocarbon refining processes. EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Glenn T Barrett, Andrew T Ward, September 13, 2016: US09441171 (2 worldwide citation)

A multipurpose chemical additives (MPC) is disclosed to mitigate fouling in hydrocarbon refinery processes, such as in a heat exchanger. A method for reducing fouling of a hydrocarbon is also disclosed that includes (i) providing a crude hydrocarbon for a refining process; and (ii) adding an additiv ...


8
Edward W Corcoran Jr, Avelino Corma Canos, Fernando Rey Garcia, Susana Valencia Valencia, Angel Cantin Sanz, Miguel Palomino Roca: Separation, storage, and catalytic conversion of fluids using ITQ-55. EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Andrew T Ward, April 11, 2017: US09617164 (2 worldwide citation)

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula x(M1/nXO2):yYO2:gGeO2:(1−g)SiO2 in which M is selected between H+, at l ...


9
Roger G Gaughan, Robert T Peters, Timothy D Suter, Bryan M Knickerbocker: Characterization of pre-refined crude distillate fractions. EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Larry E Carter, Glenn T Barrett, Andrew T Ward, July 19, 2016: US09394497 (2 worldwide citation)

Methods are provided for qualifying jet fuel fractions that are derived at least in part from pre-refined crude oil sources. The methods allow for determination of the stability of a jet fuel product over time by using an accelerated aging test. The methods are beneficial for verifying the stability ...


10
Lisa S Baugh, Pavel Kortunov, Michael Siskin: Ionic liquids for removal of carbon dioxide. ExxonMobil Research and Engineering Company, David M Weisberg, Andrew T Ward, November 17, 2015: US09186616 (1 worldwide citation)

Ionic liquids containing a cation with a potentially nucleophilic carbon atom bearing a relatively acidic hydrogen atom bonded to a potentially nucleophilic carbon atom, typically in the conjugated —NC(H)N— structure or a —NC(H)S— structure of imidazolium, imidazolidinium or thiazolium salts, can be ...