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91.
公开(公告)号:US20200165509A1
公开(公告)日:2020-05-28
申请号:US16672152
申请日:2019-11-01
Applicant: ExxonMobil Research and Engineering Company
Inventor: Xiaozhou Zhang , Dennis R. Enning , Meytal B. Higgins , Jaspreet Mand , Fang Cao , Giovanni Pilloni , Mohor Chatterjee
Abstract: Provided are methods for diagnosing, monitoring and mitigating microbiologically influenced corrosion (MIC). The methods employ steps to determine the nature and concentration of biological signatures, formed through metabolism of microorganisms, and correlating the biological signatures with MIC. Based on such analyses, appropriate MIC mitigation strategies may be implemented so as to efficiently target MIC at sites of interest. The methods advantageously allow selection of appropriate MIC mitigation treatments that correspond to the level of severity of the MIC and based on historical data correlating particular biological signatures with particular MIC risk.
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公开(公告)号:US10655077B2
公开(公告)日:2020-05-19
申请号:US16031288
申请日:2018-07-10
Applicant: ExxonMobil Research and Engineering Company
Inventor: Keith K. Aldous , Kamal Boussad , Kendall S. Fruchey , Sara K. Green
Abstract: Systems and methods are provided for using a three-product deasphalter to produce advantageous combinations of deasphalted oil, resin, and rock. The desaphalted oil, resin, and rock can then be further combined, optionally with other vacuum gas oil fractions produced during the distillation that generated the feed to the three-product deasphalter, to produce a product slate of improved quality while also maintaining the quality of the resulting asphalt product and reducing or minimizing the amount of lower value products generated. The additional “resin” product from the three product deasphalter can be generated by sequential deasphalting, by using a resin settler to separate resin from the deasphalted oil, or by any other convenient method.
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公开(公告)号:US20200148960A1
公开(公告)日:2020-05-14
申请号:US16185054
申请日:2018-11-09
Applicant: ExxonMobil Research and Engineering Company
Inventor: Mohsen N. Harandi
Abstract: Systems and methods are provided for using an oxygen-containing gas as at least part of the stripping gas for the stripping zone or section in a fluidized coker. By using an oxygen-containing gas as the stripping gas, heat can be added to the stripping zone selectively based on combustion of coke and/or hydrocarbons with the oxygen in the stripping gas. This can allow the temperature of the stripping zone to be increased relative to the temperature of the coking zone of a fluidized coking system. The flow of oxygen can be controlled to achieve a desirable temperature in the stripper while the reactor temperature is independently set by preheating of the feed and/or hot coke circulation to the reaction zone.
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公开(公告)号:US20200147545A1
公开(公告)日:2020-05-14
申请号:US16660029
申请日:2019-10-22
Applicant: ExxonMobil Research and Engineering Company
Inventor: Mohsen S. Yeganeh , Pavel Kortunov , P. Scott Northrop , Xiaozhou Zhang , Giovanni Pilloni , Ning Ma , Robert J. Colby , Qiuzi Li , Zarath M. Summers , Matthew S. Ide
Abstract: The present disclosure relates to a porous liquid or a porous liquid enzyme that includes a high surface area solid and a liquid film substantially covering the high surface area solid. The porous liquid or porous liquid enzyme may be contacted with a fluid that is immiscible with the liquid film such that a liquid-fluid interface is formed. The liquid film may facilitate mass transfer of a substance or substrate across the liquid-fluid interface. The present disclosure also provides methods of performing liquid-based extractions and enzymatic reactions utilizing the porous liquid or porous liquid enzyme of the present disclosure.
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95.
公开(公告)号:US20200147543A1
公开(公告)日:2020-05-14
申请号:US16660058
申请日:2019-10-22
Applicant: ExxonMobil Research and Engineering Company
Inventor: Ning Ma , Mohsen S. Yeganeh , Robert J. Colby , Qiuzi Li , Matthew S. Ide
IPC: B01D53/14 , B01J20/10 , B01J20/08 , B01J20/26 , B01J20/22 , B01J20/28 , B01J31/00 , B01J31/26 , B01J21/08 , B01J35/06 , B01D53/18 , C02F1/26 , C02F3/34 , B01D53/26
Abstract: The present disclosure relates to a porous liquid or a porous liquid enzyme system that includes a high surface area solid and a liquid film substantially covering the high surface area solid. The porous liquid or porous liquid enzyme may be contacted with a fluid that is immiscible with the liquid film such that a liquid-fluid interface is formed. The liquid film may facilitate mass transfer of a substance or substrate across the liquid-fluid interface. The present disclosure also provides methods of performing liquid-based extractions and enzymatic reactions utilizing the porous liquid or porous liquid enzyme of the present disclosure. The present disclosure also provides methods for selecting the components of the porous liquid or a porous liquid enzyme system and methods of self-replenishing the used liquid coating.
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96.
公开(公告)号:US20200087229A1
公开(公告)日:2020-03-19
申请号:US16545172
申请日:2019-08-20
Applicant: ExxonMobil Research and Engineering Company
Inventor: Robert Piszczek , Philippe D'Hooghe , David A. Hokanson , Erik Kluwen
Abstract: Systems and methods are provided for improving process control of separation systems that include one or more dividing walls within a single column. It has been discovered that improved process control can be achieved by controlling the dividing wall columns based on energy balance instead of mass balance. The energy balancing can be performed in part based on controlling temperature at a plurality of locations on the feed side within a first divided portion of the column. Using energy balancing based on temperature control at a plurality of locations on the feed side can facilitate maintaining the operation of the dividing wall columns within a single region of phase space that can be suitably approximated by linear models. This can allow conventional process controllers to manage the manipulated and controlled variables. In addition to controlling the temperature at a plurality of locations on the feed side, a plurality of other characteristics can be used as manipulated or controlled variables. Optionally, a multivariable controller can be used to provide further improved control of the column.
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97.
公开(公告)号:US20200086432A1
公开(公告)日:2020-03-19
申请号:US16672960
申请日:2019-11-04
Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY , POSCO
Inventor: HyunWoo Jin , Ning Ma , Adnan Ozekcin , Andrew J. Wasson , Douglas P. Fairchild , IIWook Han , Sangchul Lee , Bongkeun Lee , Jongsub Lee
IPC: B23K35/30 , C22C38/58 , C22C38/44 , C22C38/42 , C22C38/02 , C22C38/00 , B23K35/02 , B23K9/23 , B23K9/18
Abstract: A metal cored wire for submerged arc welding, the wire comprising a steel sheath with a core comprising powders of: carbon in a range of about 0.3 wt. % to about 1.2 wt. %; silicon in a range of about 0.1 wt. % to about 3.0 wt. %; manganese in a range of about 9.0 wt. % to about 30 wt. %; chromium in an amount less than about 8 wt. %; nickel in an amount less than about 6 wt. %; molybdenum in an amount less than about 6 wt. %; tungsten in an amount less than about 5 wt. %; copper in an amount less than about 4 wt. %; niobium in an amount less than about 2 wt. %; vanadium in an amount less than about 2 wt. %; titanium in an amount less than about 2 wt. %; nitrogen in an amount less than about 0.4 wt. %; boron in an amount less than about 1 wt. %; at least one of: (i) sulfur in an amount less than about 0.3 wt. %; (ii) phosphorous in an amount less than about 0.03 wt. %; or a combination thereof; and the balance with iron.
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公开(公告)号:US20200063038A1
公开(公告)日:2020-02-27
申请号:US16535251
申请日:2019-08-08
Applicant: ExxonMobil Research and Engineering Company
Inventor: Mohsen N. Harandi
Abstract: A method upgrading waste to produce fuel can include: introducing a hydrocarbon feed stream into a 450° C. to 1050° C. coking zone of a reactor containing a fluidized bed of coke particles maintained at coking temperatures to produce a vapor phase hydrocarbon product while coke is deposited on the coke particles; allowing the coke particles to pass downwards to a stripper section of the reactor; introducing a steam stream into the stripper section; transferring the coke particles from the stripper section to a gasifier/burner; contacting the coke particles in the gasifier/burner an oxygen-containing gas in an oxygen-limited atmosphere at 850° C. to 1200° C. to heat the coke particles and form a fuel gas product that comprises carbon monoxide and hydrogen; recycling the heated coke particles from the gasifier/burner to the coking zone of the reactor; and introducing at least one waste stream to the reactor and/or the gasifier/burner.
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公开(公告)号:US20200061593A1
公开(公告)日:2020-02-27
申请号:US16545464
申请日:2019-08-20
Applicant: ExxonMobil Research and Engineering Company
Inventor: Preeti Kamakoti , Scott J. Weigel , Karl G. Strohmaier , Helge Jaensch , Marc H. Anthonis , Martine Dictus , Brita Engels , Darryl D. Lacy , Sina Sartipi , Brandon J. O'Neill
Abstract: Processes are provided for preparing molecular sieves of framework structure MEI, TON, MRE, MWW, MFS, MOR, FAU, EMT, or MSE. The process involves preparing a synthesis mixture for the molecular sieve wherein the synthesis mixture includes a morphology modifier L selected from the group consisting of cationic surfactants having a quaternary ammonium group comprising at least one hydrocarbyl group having at least 12 carbon atoms, nonionic surfactants, anionic surfactants, sugars and combinations thereof.
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公开(公告)号:US20200047142A1
公开(公告)日:2020-02-13
申请号:US16453339
申请日:2019-06-26
Applicant: ExxonMobil Research and Engineering Company
Inventor: Mohsen N. Harandi
Abstract: A process and system that use the heat produced in the generation of Syngas to provide heat to an endothermic reaction zone are disclosed. A method for providing heat to an endothermic reaction may comprise producing Syngas in a reforming reactor. The method may further comprise recovering heat from the producing the Syngas to heat an endothermic reaction stream in a heat transfer zone. The method may further comprise allowing reactants in the endothermic reaction stream to react to form an endothermic reaction product stream. The method may further comprise withdrawing the endothermic reaction product stream from the heat transfer zone.
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