公开(公告)号：US20190161421A1

公开(公告)日：2019-05-30

申请号：US16320655

申请日：2017-08-15

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Federico Barrai ,  John S. Coleman ,  Dhaval A. Bhandari ,  Frank Hershkowitz ,  James R. Lattner

IPC: C07C5/327 ,  C01B3/22 ,  B01F5/06

Abstract: The invention relates to hydrocarbon pyrolysis, to equipment and materials useful for hydrocarbon pyrolysis, to processes for carrying out hydrocarbon pyrolysis, and to the use of hydrocarbon pyrolysis for. e.g., natural gas upgrading. The pyrolysis can be carried out in a reverse-flow reactor.

公开(公告)号：US20190016975A1

公开(公告)日：2019-01-17

申请号：US16025622

申请日：2018-07-02

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： John S. Coleman ,  Kapil Kandel ,  Subramanya V. Nayak ,  Teng Xu

IPC: C10G69/06 ,  C10G67/02

Abstract: A multi-stage process is described for upgrading pyrolysis tar, such as steam cracker tar, by hydroprocessing in at least two stages. Hydroprocessing in a first stage is performed in the presence of a utility fluid. The utility fluid has a boiling point distribution from about 120° C. to about 480° C. and is separated from the first stage product.

公开(公告)号：US20170088491A1

公开(公告)日：2017-03-30

申请号：US15240531

申请日：2016-08-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Paul F. Keusenkothen ,  John S. Buchanan ,  John S. Coleman ,  Seth M. Washburn

IPC: C07C5/41 ,  B01J8/02

CPC classification number: B01J8/0285 ,  B01J8/0278 ,  B01J2208/00548 ,  B01J2208/02 ,  C07C2/76 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/70 ,  C07C2529/80 ,  C10G11/00 ,  C07C15/04 ,  C07C15/06

Abstract: The invention relates to hydrocarbon dehydrocyclization to produce products such as aromatic hydrocarbon, to equipment and materials useful for dehydrocyclization, to processes for carrying out dehydrocyclization, and to the use of dehydrocyclization for, e.g., natural gas upgrading. The dehydrocyclization is carried out in a catalytic reaction zone of a reverse-flow reactor.

公开(公告)号：US20240226869A1

公开(公告)日：2024-07-11

申请号：US18562477

申请日：2022-05-06

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Xiaoying Bao ,  Christian A. Diaz Urrutia ,  Chuansheng Bai ,  John S. Coleman ,  Keith H. Kuechler

IPC: B01J38/12 ,  B01J23/89 ,  B01J23/96 ,  C07C5/333

CPC classification number: B01J38/12 ,  B01J23/8946 ,  B01J23/96 ,  C07C5/3337 ,  C07C2521/10 ,  C07C2523/78 ,  C07C2523/835 ,  C07C2523/89

Abstract: Processes for regenerating an at least partially deactivated catalyst that can include a Group (10) element, an inorganic support, and a contaminant. The Group (10) element can have a concentration of from 0.001 wt % to 6 wt %, based on the weight of the inorganic support. The process can include (I) heating the deactivated catalyst using a heating gas mixture that includes H2O at a concentration >5 mol %, based on the total moles in the mixture to produce a precursor catalyst. The process can also include (II) providing an oxidative gas that includes ≤5 mol % of H2O, based on the total moles in the oxidative gas, and (III) contacting the precursor catalyst at an oxidizing temperature with the oxidative gas for a duration of at least 30 seconds to produce an oxidized precursor catalyst. The process can also include (IV) obtaining a regenerated catalyst from the oxidized precursor catalyst.

公开(公告)号：US11254629B2

公开(公告)日：2022-02-22

申请号：US16908014

申请日：2020-06-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Michael W. Weber ,  Larry L. Iaccino ,  Keith H. Kuechler ,  John S. Coleman ,  Jay L. Reimers

IPC: C07C7/00 ,  B01J19/24 ,  C07C2/08

Abstract: A method for washing an oligomerization reactor using by-product solvent recovered from the reactor can include: catalytically converting a monomer in a reactor section in a reaction mode in the presence of a catalyst to form a product stream comprising an oligomer, a by-product solvent, and a polymeric by-product; separating the product stream into a first fraction comprising the oligomer and a second fraction comprising a mixture of the by-product solvent and the polymeric by-product; and separating, in a thin film evaporator, the second fraction into a third fraction comprising the by-product solvent and a fourth fraction comprising the polymeric by-product.

公开(公告)号：US20210348064A1

公开(公告)日：2021-11-11

申请号：US17278547

申请日：2019-10-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Kapil Kandel ,  Teng Xu ,  John S. Coleman ,  Krystle J. Emanuele ,  Frank Cheng-Yu Wang ,  Anthony S. Mennito

IPC: C10G9/36 ,  C10G55/04 ,  C10G75/04

Abstract: Processes for preparing a low particulate liquid hydrocarbon product are provided and include blending a tar stream containing particles with a fluid and heating to a temperature of 250° C. or greater to produce a fluid-feed mixture that contains tar, the particles, and the fluid. The fluid-feed mixture contains about 20 wt % or greater of the fluid, based on a combined weight of the tar stream and the fluid. Also, about 25 wt % to about 99 wt % of the particles in the tar stream are dissolved or decomposed when producing the fluid-feed mixture.

公开(公告)号：US20210276002A1

公开(公告)日：2021-09-09

申请号：US17174078

申请日：2021-02-11

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Xiaoying Bao ,  John S. Coleman

IPC: B01J38/32 ,  C07C5/333 ,  B01J35/00 ,  B01J23/62 ,  B01J21/10 ,  B01J23/10 ,  B01J21/06 ,  B01J21/04

Abstract: Processes for upgrading a hydrocarbon. The process can include contacting a hydrocarbon-containing feed with fluidized catalyst particles that can include a Group 8-10 element or a compound thereof disposed on a support to effect one or more of dehydrogenation, dehydroaromatization, and dehydrocyclization of at least a portion of the hydrocarbon-containing feed to produce a coked catalyst and an effluent. The process can also include contacting at least a portion of the coked catalyst particles with an oxidant to effect combustion of at least a portion of the coke to produce regenerated catalyst particles. The process can also include contacting an additional quantity of the hydrocarbon-containing feed with at least a portion of the regenerated catalyst particles to produce additional effluent and re-coked catalyst particles.

公开(公告)号：US20210179954A1

公开(公告)日：2021-06-17

申请号：US17045416

申请日：2019-03-20

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： John S. Coleman ,  Kendele S. Galvan ,  John J. Monson ,  Denise M. Burcham ,  Kapil Kandel

IPC: C10G69/06 ,  C10G49/00 ,  C10G49/16 ,  C10G49/22

Abstract: Systems and methods are provided for increasing the portion of a pyrolysis tar fraction that can be hydroprocessed by using a physical particle size reduction process on at least a portion of the pyrolysis tar fraction. The physical particle size reduction process can reduce the percentage of particles in the pyrolysis tar fraction that have a particle size of 75 μm or greater, or 50 μm or greater. It has been unexpectedly discovered that at least a portion of the particles having a size of 75 μm or less, or 50 μm or less, can be effectively hydroprocessed to form products of greater value while still reducing or minimizing the amount of fouling or plugging in a hydroprocessing catalyst bed. By increasing the number of particles having a size of 75 μm or less, or 50 μm or less, while selectively removing larger particles from the SCT fraction, a higher yield of hydrocarbon products can be achieved for a feed containing an SCT fraction. This can reduce or minimize the amount of particulates that are disposed of by incineration or another disposal method for fractions that have a lesser value.

公开(公告)号：US20210017104A1

公开(公告)日：2021-01-21

申请号：US16908014

申请日：2020-06-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Michael W. Weber ,  Larry L. Iaccino ,  Keith H. Kuechler ,  John S. Coleman ,  Jay L. Reimers

IPC: C07C7/00 ,  C07C2/08 ,  B01J19/24

Abstract: A method for washing an oligomerization reactor using by-product solvent recovered from the reactor can include: catalytically converting a monomer in a reactor section in a reaction mode in the presence of a catalyst to form a product stream comprising an oligomer, a by-product solvent, and a polymeric by-product; separating the product stream into a first fraction comprising the oligomer and a second fraction comprising a mixture of the by-product solvent and the polymeric by-product; and separating, in a thin film evaporator, the second fraction into a third fraction comprising the by-product solvent and a fourth fraction comprising the polymeric by-product.

公开(公告)号：US10894925B2

公开(公告)日：2021-01-19

申请号：US16025736

申请日：2018-07-02

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Kapil Kandel ,  Bryan A. Patel ,  Sumathy Raman ,  John S. Coleman ,  Reyyan Koc-Karabocek ,  Teng Xu ,  Cyrus J. Rachal ,  Subramanya V. Nayak

IPC: C10G69/06 ,  C10G65/12 ,  C10G65/02 ,  C10G65/10 ,  C10G67/02 ,  B01J23/28 ,  B01J23/44 ,  B01J23/745 ,  B01J23/75 ,  B01J23/755

Abstract: A multi-stage process for upgrading tars is provided. A predominantly hydrotreating stage can be applied before a cracking stage, which can be a hydrocracking or a thermal cracking stage. Alternatively, a predominantly cracking stage, which can be a hydrocracking or a thermal cracking stage, can be applied before a hydrotreating stage. Apparatus suitable for performing the method is also provided.