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公开(公告)号：US20220275293A1
公开(公告)日：2022-09-01
申请号：US17639820
申请日：2020-08-14
Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
Inventor： Eric B. SHEN , Anjaneya S. KOVVALI , Aruna RAMKRISHNAN , Samuel J. CADY , Stephen H. BROWN , Rustom M. BILLIMORIA , Brenda A. RAICH , Bryan A. PATEL , Phillip K. SCHOCH , John DELLA MORA , Arun K. SHARMA
Abstract: Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport. In still other aspects, the systems and methods can allow for reduced incorporation of external streams into the final product for transport while still satisfying one or more target properties.
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公开(公告)号：US20180296999A1
公开(公告)日：2018-10-18
申请号：US15924734
申请日：2018-03-19
Applicant: ExxonMobil Research and Engineering Company
Inventor： Arsam BEHKISH , Michael F. RATERMAN , Anjaneya S. KOVVALI
CPC classification number: B01J8/10 , B01J4/007 , B01J8/002 , B01J8/003 , B01J8/0045 , B01J2204/002 , B01J2208/00769
Abstract: Systems and methods are provided for controlling the flow and transport of catalyst particles within a reaction system. The flow of catalyst particles can be managed using a rotating disc or wheel that is configured within a roller volume to allow for control over the rate of catalyst flow while reducing or minimizing attrition of the catalyst particles. This can be achieved in part by maintaining a relationship between the center of the rotating disc, the inlet for catalyst particles to the roller volume, and the top wall of the roller volume so that catalyst particles are not exposed to compressive forces and/or abrasion during rotation of the disc. Additionally or alternately, the disc and roller volume surfaces can be configured to reduce or minimize the potential for catalyst particles to become trapped in “dead space” regions within the roller volume. By using a disc to provide force for transport of particles through the roller volume, the speed of catalyst movement can be controlled at relatively slow catalyst flow rates with a reduced or minimized risk for clogging or plugging within the roller volume.
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公开(公告)号：US20220333026A1
公开(公告)日：2022-10-20
申请号：US17639871
申请日：2020-08-14
Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
Inventor： Stephen H. BROWN , Brenda A. RAICH , Samuel J. CADY , Anjaneya S. KOVVALI , Eric B. SHEN , Scott R. HORTON , Ashish B. MHADESHWAR , Aruna RAMKRISHNAN
Abstract: An upgraded crude composition is provided, along with systems and methods for making such a composition. The upgraded crude composition can include an unexpectedly high percentage of vacuum gas oil boiling range components while having a reduce or minimized amount of components boiling above 593° C. (1100° F.). In some aspects, based in part on the hydroprocessing used to form the upgraded crude composition, the composition can include unexpectedly high contents of nitrogen. Still other unexpected features of the composition can include, but are not limited to, an unexpectedly high nitrogen content in the naphtha fraction; and an unexpected vacuum gas oil fraction including an unexpectedly high content of polynuclear aromatics, an unexpectedly high content of waxy, paraffinic compounds, and/or an unexpectedly high content of n-pentane asphaltenes.
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公开(公告)号：US20220333024A1
公开(公告)日：2022-10-20
申请号：US17639840
申请日：2020-08-14
Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
Inventor： Eric B. SHEN , Anjaneya S. KOVVALI , Aruna RAMKRISHNAN , Arun K. SHARMA , Samuel J. CADY , Stephen H. BROWN , Rustom M. BILLIMORIA , Brenda A. RAICH , Bryan A. PATEL , Phillip K. SCHOCH , John DELLA MORA
Abstract: Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport. In still other aspects, the systems and methods can allow for reduced incorporation of external streams into the final product for transport while still satisfying one or more target properties.
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