公开(公告)号：US20210188735A1

公开(公告)日：2021-06-24

申请号：US17077327

申请日：2020-10-22

Applicant: ExxonMobil Research and Engineering Company

Inventor： Kun Wang ,  Aaron Sattler ,  Jihad M. Dakka

IPC: C07C1/24 ,  C07C1/247 ,  B01J8/00

Abstract: The application relates to processes and systems that use a furfural compound for producing five-membered carbocyclic rings that are unsaturated, such as cyclopentene and cyclopentadiene. Examples methods for conversion of furfural compounds may include converting a furfural compound to at least a five-membered, saturated carbocyclic ring, and converting the five-membered, saturated carbocyclic ring in a presence of a catalyst to at least a five-membered, unsaturated carbocyclic ring.

公开(公告)号：US20200231525A1

公开(公告)日：2020-07-23

申请号：US16738624

申请日：2020-01-09

Applicant: ExxonMobil Research and Engineering Company

Inventor： Jihad M. Dakka ,  Michael J. Sikorsky ,  Aruna Ramkrishnan ,  Chuansheng Bai ,  Anita S. Lee ,  Preeti Kamakoti ,  Anjaneya S. Kovvali ,  Jenna L. Walp

IPC: C07C41/09 ,  B01J8/02 ,  B01J8/00 ,  C07C29/153

Abstract: Systems and methods are provided for conversion of gas phase reactants including CO and H2 to C2+ products using multiple catalysts in a single reactor while reducing or minimizing deactivation of the catalysts. Separate catalysts can be used that correspond to a first catalyst, such as a catalyst for synthesis of methanol from synthesis gas, and a second catalyst, such as a catalyst for conversion of methanol to a desired C2+ product. The separate catalysts can be loaded into the reactor in distinct layers that are separated by spacer layers. The spacer layers can correspond to relatively inert particles, such as silica particles. Optionally, the spacer layer can include an adsorbent, such as boron supported on alumina or boron carbide particles. The adsorbent can be suitable for selective adsorption of the one or more reaction products (such as one or more reaction by-products), to allow for further reduction or minimization of the deactivation of the conversion catalysts.

公开(公告)号：US10513475B2

公开(公告)日：2019-12-24

申请号：US15839974

申请日：2017-12-13

Applicant: ExxonMobil Research and Engineering Company

Inventor： Sophie Liu ,  Jihad M. Dakka ,  Partha Nandi ,  Sara Yacob ,  Quddus A. Nizami ,  Chuansheng Bai

IPC: C07C2/86 ,  C07C2/62 ,  C07C29/50 ,  C07C1/24 ,  C07C31/12 ,  C07C31/125 ,  B01J29/70 ,  C07C5/02 ,  C07C29/132 ,  C07C2/12 ,  C07C5/03 ,  C07C5/27 ,  C07C407/00 ,  C10G45/58 ,  C10G50/00 ,  C10G69/12 ,  C10G3/00 ,  B01J29/80 ,  B01J29/50

Abstract: Methods and systems for converting hydrocarbons including exposing a portion of a hydroperoxide-containing feed including tert-butyl hydroperoxide to a solid deperoxidation catalyst under decomposition conditions to form an oxidation effluent comprising tert-butyl alcohol, wherein the solid deperoxidation catalyst comprises a manganese oxide octahedral molecular sieve, are provided herein. Further methods and systems for converting the oxidation effluent to an alkylation product are also provided herein.

公开(公告)号：US10421698B2

公开(公告)日：2019-09-24

申请号：US15839937

申请日：2017-12-13

Applicant: ExxonMobil Research and Engineering Company

Inventor： Jihad M. Dakka ,  Matthew S. Ide ,  David B. Spry ,  Sumod Kalakkunnath ,  Guang Cao ,  Patrick L. Hanks ,  Cynthia F. Omilian

IPC: C07C2/86 ,  C07C2/02 ,  C07C1/24 ,  C07C2/12 ,  C07C2/62 ,  C07C31/12 ,  C07C31/125 ,  C07C29/50 ,  B01J29/70 ,  C07C5/02 ,  C07C29/132 ,  C07C5/03 ,  C07C5/27 ,  C07C407/00 ,  C10G45/58 ,  C10G50/00 ,  C10G69/12 ,  C10G3/00 ,  B01J29/80 ,  B01J29/50

Abstract: Systems and methods are provided for production of high octane hydrocarbon from an isoparaffin feed using oxidation acid catalysis chemistry.

公开(公告)号：US10414701B2

公开(公告)日：2019-09-17

申请号：US15839926

申请日：2017-12-13

Applicant: ExxonMobil Research and Engineering Company

Inventor： Jihad M. Dakka ,  Guang Cao ,  Patrick L. Hanks ,  James R. Bielenberg ,  Cynthia F. Omilian ,  Jessica M. Wittmann

IPC: C07C2/86 ,  C07C2/02 ,  C07C1/24 ,  C07C2/12 ,  C07C2/62 ,  C07C31/12 ,  C07C31/125 ,  C07C29/50 ,  B01J29/70 ,  C07C5/02 ,  C07C29/132 ,  C07C5/03 ,  C07C5/27 ,  C07C407/00 ,  C10G45/58 ,  C10G50/00 ,  C10G69/12 ,  C10G3/00 ,  B01J29/80 ,  B01J29/50

Abstract: Systems and methods are provided for forming alkylate from an isoparaffin-containing feed. Olefins for the alkylation reaction can be generated from a portion of the isoparaffin-containing feed. This can be achieved, for example, by using selective oxidation to convert a portion of isoparaffins into alcohol, such as conversion of isobutane to t-butyl alcohol. The alcohol can then be converted to an alkene, such as conversion of t-butyl alcohol to isobutene, in the alkylation reaction environment in the presence of a solid acid catalyst. The solid acid catalyst can then facilitate alkylation of isoparaffin using the in-situ formed alkenes. A catalyst having an MWW framework is an example of a suitable solid acid catalyst.

公开(公告)号：US20190022631A1

公开(公告)日：2019-01-24

申请号：US16018202

申请日：2018-06-26

Applicant: ExxonMobil Research and Engineering Company

Inventor： Partha Nandi ,  Matthew S. Ide ,  Jihad M. Dakka ,  Quddus A. Nizami ,  Mobae Afeworki

IPC: B01J29/70 ,  B01J37/08 ,  B01J37/26 ,  C07C2/12 ,  C07C2/68

Abstract: Catalyst compositions with improved alkylation activity and corresponding methods for making such catalyst compositions are provided. The catalyst(s) correspond to solid acid catalysts formed by exposing a catalyst precursor with a zeolitic framework structure to a molten metal salt that includes fluorine, such as a molten metal fluoride. The resulting fluorinated solid acid catalysts can have improved alkylation activity while having a reduced or minimized amount of structural change due to the exposure to the molten metal fluoride. This is in contrast to fluorinated solid acid catalysts that are exposed to higher severity forms of fluorination, such as exposure to ammonium fluoride or HF. SnF2 is an example of a suitable molten metal fluoride.

公开(公告)号：US10160708B2

公开(公告)日：2018-12-25

申请号：US15455181

申请日：2017-03-10

Applicant: ExxonMobil Research and Engineering Company

Inventor： Anita S. Lee ,  Jihad M. Dakka ,  Arun K. Sharma ,  Michel Daage ,  Preeti Kamakoti ,  Ronald Suryo ,  Chuansheng Bai ,  J. Timothy Cullinane

IPC: C07C41/09 ,  C07C41/01 ,  C01B3/34 ,  C07C29/151

Abstract: Integrated methods and systems are disclosed for the production of dimethyl ether. The method may include reforming natural gas to syngas in a first reactor; contacting the syngas produced in the first reactor with a catalyst system in a second reactor to produce dimethyl ether and carbon dioxide; and supplying steam as a cofeed to at least one of the first reactor and the second reactor in an amount sufficient to achieve a Mm value of 1.4 to 1.8 or to improve the hydrocarbon or oxygenate selectivity.

公开(公告)号：US20220401935A1

公开(公告)日：2022-12-22

申请号：US17349989

申请日：2021-06-17

Applicant: ExxonMobil Research and Engineering Company

Inventor： Takayuki Iida ,  Jihad M. Dakka ,  Brandon M. Carcuffe ,  Aaron Peters

IPC: B01J29/74 ,  B01J37/04 ,  B01J37/00 ,  B01J37/30 ,  B01J37/08 ,  C07C5/27 ,  C10G45/64

Abstract: Provided herein are methods for hydroisomerization of a hydrocarbon feedstock comprising contacting the hydrocarbon feedstock with hydrogen and a catalyst to yield a hydrocarbon product having an increase in branched hydrocarbons relative to the hydrocarbon feedstock. The present catalysts comprise a heteroatom-doped Beta zeolite having a trivalent cation as a framework metal oxide, an extra-framework species comprised of cerium and/or cobalt, and from 0.01 to 1.5 wt. % of a group VIII or VIB metal, or a combination thereof.

公开(公告)号：US10858600B2

公开(公告)日：2020-12-08

申请号：US16541617

申请日：2019-08-15

Applicant: ExxonMobil Research and Engineering Company

Inventor： Guang Cao ,  Jihad M. Dakka ,  Suzzy C. Ho ,  Brian M. Weiss

IPC: C10G67/02 ,  B01J31/18 ,  C10G47/02 ,  C10G7/00 ,  C10G50/02

Abstract: Systems and a method for manufacturing a base stock from a light gas stream are provided. An example method includes oxidizing the light gas stream to form a raw ethylene stream. Water is removed from the raw ethylene stream, and carbon monoxide in the raw ethylene stream is oxidized. Carbon dioxide is separated from the raw ethylene stream, and the raw ethylene stream is oligomerized to form a raw oligomer stream. A light olefinic stream is distilled from the raw oligomer stream and a light alpha olefin is recovered from the light olefinic stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is hydro-processed to form a hydro-processed stream. the hydro-processed stream is distilled to form the base stock.

公开(公告)号：US20200063045A1

公开(公告)日：2020-02-27

申请号：US16541617

申请日：2019-08-15

Applicant: ExxonMobil Research and Engineering Company

Inventor： Guang Cao ,  Jihad M. Dakka ,  Suzzy C. Ho ,  Brian M. Weiss

IPC: C10G67/02 ,  B01J31/18 ,  C10G47/02 ,  C10G50/02 ,  C10G7/00

Abstract: Systems and a method for manufacturing a base stock from a light gas stream are provided. An example method includes oxidizing the light gas stream to form a raw ethylene stream. Water is removed from the raw ethylene stream, and carbon monoxide in the raw ethylene stream is oxidized. Carbon dioxide is separated from the raw ethylene stream, and the raw ethylene stream is oligomerized to form a raw oligomer stream. A light olefinic stream is distilled from the raw oligomer stream and a light alpha olefin is recovered from the light olefinic stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is hydro-processed to form a hydro-processed stream. the hydro-processed stream is distilled to form the base stock.