Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 32. Отображено 32.
26-06-2013 дата публикации

Selecting an improved catalyst composition and hydrocarbon conversion process using same

Номер: CN103180042A
Автор: Joshi Yogesh V., Venkataraman Pallassana S., Helton Terry E., Smith C. Morris, Santiesteban Jose G., Vincent Matthew J.
Принадлежит:

The present invention provides a method for selecting an improved catalyst composition comprising a crystalline molecular sieve material having a structure and properties whereby the catalyst composition has at least one active catalytic site with a Mono Alkylation Selectivity Factor (MASF) greater than or equal to 0 kcal/mol +- 0.5 kcal/mol, and optionally further at least one active catalytic site with an Olefin Oligomerization Suppression Factor (OOSF) greater than or equal to 5 kcal/mol +- 0.5 kcal/mol. Further, there is provided an improved process for conversion of hydrocarbon feedstock in the presence of said selected catalyst composition.

Подробнее
Номер записи: 1
26-09-2013 дата публикации

Selecting an Improved Catalyst Composition and Hydrocarbon Conversion Process Using Same

Номер: US20130253246A1
Автор: Helton Terry E., Joshi Yogesh V., Santiesteban Jose G., Smith Charles M., Venkataraman Pallassana S., Vincent Matthew J.
Принадлежит: ExxonMobil Chemical Patents Inc.

The present invention provides a method for selecting an improved catalyst composition comprising a crystalline molecular sieve material having a structure and properties whereby the catalyst composition has at least one active catalytic site with a Mono Alkylation Selectivity Factor (MASF) greater than or equal to 0 kcal/mol±0.5 kcal/mol, and optionally further at least one active catalytic site with an Olefin Oligomerization Suppression Factor (OOSF) greater than or equal to 5 kcal/mol±0.5 kcal/mol. Further, there is provided an improved process for conversion of hydrocarbon feedstock in the presence of said selected catalyst composition. 1. A method for selecting a catalyst composition comprising a porous crystalline material for use in a hydrocarbon conversion process , said method comprising steps of determining a Mono Alkylation Selectivity Factor of one or more catalyst compositions , and selecting a catalyst composition which has at least one active catalytic site with said Mono Alkylation Selectivity Factor greater than or equal to 0 kcal/mol±0.5 kcal/mol.2. The method of claim 1 , wherein said selected catalyst composition has at least one active catalytic site with a Mono Alkylation Selectivity Factor greater than or equal to 3 kcal/mol±0.5 kcal/mol claim 1 , or greater than or equal to 7 kcal/mol±0.5 kcal/mol.3. The method of claim 1 , further comprising steps of determining a Olefin Oligomerization Suppression Factor of one or more catalyst compositions claim 1 , and selecting a catalyst composition which has at least one active catalytic site with said Olefin Oligomerization Suppression Factor greater than or equal to 5 kcal/mol±0.5 kcal/mol claim 1 , or greater than or equal to 7 kcal/mol±0.5 kcal/mol claim 1 , or greater than or equal to 10 kcal/mol±0.5 kcal/mol.4. The method of claim 1 , wherein said Mono Alkylation Selectivity Factor (MASF) is defined by the formula:{'br': None, 'sup': T', 'Olefin+MonoAlkylated Aromatics', 'T', 'Olefin+Aromatics, ' ...

Подробнее
Номер записи: 2
09-06-2022 дата публикации

ADVANCED ADSORPTIVE SEPARATION PROCESSES FOR MOLECULAR CLASS SEPARATION

Номер: US20220177393A1
Автор: Falkowski Joseph M., Joshi Yogesh V., Kalyanaraman Jayashree, Paek Changyub, Partridge Randall D.
Принадлежит:

A method for separating classes of hydrocarbon compounds from a feed stream including a hydrocarbon mixture is disclosed. The method includes the steps of passing a feed stream through a plurality of separation units arranged in a series in any order, wherein each separation unit has an adsorbent material; and separating classes of hydrocarbon compounds from the feed stream. When one of the plurality of separation units comprises an adsorbent material that is a metal organic framework selected from a zirconium, hafnium, cerium, or titanium-based metal organic framework, then another plurality of separation units includes an adsorption material that is different from the metal organic framework. The method is conducted in a liquid phase. The method can also use a single separation unit with a continuous cyclic bed apparatus. The method can be combined with refining and downstream processes. 1. A method for separating classes of hydrocarbon compounds from a feed stream , the method comprising the steps of:passing a feed stream comprising a hydrocarbon mixture through a plurality of separation units arranged in a series in any order, wherein each separation unit has an adsorbent material; andseparating classes of hydrocarbon compounds from the feed stream,wherein one of the plurality of separation units comprises an adsorbent material that is a metal organic framework selected from a zirconium, hafnium, cerium, or titanium-based metal organic framework;wherein another of the plurality of separation units has an adsorption material that is different from the metal organic framework; andwherein the method is conducted in a liquid phase.2. The method of claim 1 , wherein the another of the plurality of separation units comprises an adsorbent material that is independently selected from a porous silica claim 1 , a small pore zeolite claim 1 , a medium pore zeolite claim 1 , or a large pore zeolite.3. The method of claim 2 , wherein the porous silica is silica gel claim 2 , ...

Подробнее
Номер записи: 3
29-09-2022 дата публикации

Metal-Organic Framework Materials Comprising A Pyrazolylbenzoate Ligand and Methods for Production Thereof

Номер: US20220305456A1
Автор: Abdulkarim Mary S., Falkowski Joseph M., Joshi Yogesh V., Weston Simon C.
Принадлежит:

Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers, typically as a coordination polymer. Some highly porous MOFs lack stability at ambient conditions. MOFs having ambient condition stability may comprise a plurality of metal clusters (MO clusters, M=a metal), and a plurality of 4-(1H-pyrazol-4-yl)benzoate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. Methods for synthesizing these MOFs may comprise combining a metal source, such as a preformed metal cluster, with 4-(1H-pyrazol-4-yl)benzoic acid, and reacting the preformed metal cluster with the 4-(1H-pyrazol-4-yl)benzoic acid to form a MOF having an at least partially crystalline network structure with a plurality of internal pores defined therein and comprising a plurality of metal clusters coordinated to a multidentate organic ligand comprising 4-(1H-pyrazol-4-yl)benzoate. 1. A metal-organic framework material comprising:{'sub': '4', 'a plurality of metal clusters comprising one or more MO clusters, wherein M is a metal; and'}a plurality of multidentate organic ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores, the multidentate organic ligand comprising 4-(1H-pyrazol-4-yl)benzoate.2. The metal-organic framework material of claim 1 , wherein at least a portion of the plurality of metal clusters has a tetrahedral geometry.3. The metal-organic framework material of claim 1 , wherein at least a portion of the plurality of metal clusters comprise a divalent metal.4. The metal-organic framework material of claim 1 , wherein at least a portion of the plurality of metal clusters comprise zinc claim 1 , cobalt claim 1 , nickel claim 1 , copper claim 1 , iron claim 1 , chromium claim 1 , manganese claim 1 , or any ...

Подробнее
Номер записи: 4
05-12-2019 дата публикации

BOILING FREE FRACTIONATION OF HYDROCARBON STREAMS UTILIZING A MEMBRANE CASCADE

Номер: US20190367820A1
Автор: Bhandari Dhaval A., Joshi Yogesh V., McCOOL BENJAMIN A.
Принадлежит:

Methods and systems are provided herein utilizing a membrane cascade to separate a hydrocarbon feed into boiling point fractions. Also provided herein are methods for selecting membranes for said cascades to achieve the desired boiling point fraction separation. 1. A process for fractionating a hydrocarbon stream into boiling point fractions , comprising:providing a hydrocarbon stream;selecting a first stage membrane effective to separate a hydrocarbon feed into a first stage permeate and a first stage retentate; wherein the heaviest molecule in the first stage permeate has a boiling point in the kerosene boiling range;selecting a second stage membrane effective to separate a hydrocarbon feed into a second stage permeate and a second stage retentate; wherein the heaviest molecule in the second stage permeate has a boiling point in the diesel boiling range;selecting a third stage membrane effective to separate a hydrocarbon feed a third stage permeate and a third stage retentate; wherein the heaviest molecule in the third stage permeate has a boiling point in the gas oil boiling range;selecting a fourth stage membrane effective to separate a hydrocarbon feed into a fourth stage permeate and a fourth stage retentate; wherein the heaviest molecule in the fourth stage permeate has a boiling point in the naphtha boiling range; andfeeding the hydrocarbon stream to one of the first, second, third, or fourth stage membranes under effective separation conditions;feeding the applicable stage permeate and retentate to either a downstream refinery process or to another membrane stage; andrepeating the preceding act until each of the first, second, third, and fourth stage membranes has performed a separation on the hydrocarbon stream, permeate from a previous membrane stage, or retentate from a previous membrane stage.5. The process of claim 1 , wherein the first stage membrane has a MWCO from about 100-500 Daltons.6. The process of claim 1 , wherein the first stage membrane ...

Подробнее
Номер записи: 5
26-12-2019 дата публикации

Methods for separating wax products from hydrocarbon feedstreams

Номер: US20190390126A1
Автор: Benjamin A. Mccool, Dhaval A. BHANDARI, Randall D. Partridge, Roberto Garcia, Yogesh V. Joshi
Принадлежит: ExxonMobil Research and Engineering Co

Disclosed are methods and apparatuses for separating a wax product from a hydrocarbon feedstream by a) conducting a hydrocarbon feedstream to a membrane separation zone; b) retrieving at least one retentate product stream from the first side of the membrane element; c) retrieving at least one permeate product stream having a wax phase and an oil phase from a second side of the membrane element, wherein a pour point of the wax phase of the permeate product stream is higher than a pour point of the oil phase of permeate product stream; and d) separating a wax product from the wax phase of the permeate product stream.

Подробнее
Номер записи: 6
26-12-2019 дата публикации

PRODUCTION OF IMPROVED BASE STOCKS

Номер: US20190390129A1
Автор: Bhandari Dhaval A., Calla Jason T., Joshi Yogesh V., McCOOL BENJAMIN A.
Принадлежит:

Methods and apparatuses are provided for producing base stocks by using a separation process that includes: conducting a hydrocarbon feedstream to a membrane separation zone wherein the feedstream contacts a first side of at least one membrane element; retrieving at least one retentate product stream from the first side of the membrane element; retrieving at least one permeate product stream from a second side of the membrane element; and converting at least a portion of the permeate product stream into the base stock. Also provided are base stocks produced by the separation process. 1. A method for producing an improved base stock comprising:a) conducting a hydrocarbon feedstream with an initial boiling point of at least 600° F. (˜316° C.) or a final boiling point of no more than 1100° F. (˜593° C.) to a membrane separation zone wherein the feedstream contacts a first side of at least one membrane element, wherein the membrane element has an average pore size from about 0.3 nanometer to about 10 nanometer;b) retrieving at least one retentate product stream from the first side of the membrane element;c) retrieving at least one permeate product stream from a second side of the membrane element; andd) processing at least a portion of the permeate product stream into a base stock having a kinematic viscosity at 100° C. of about 2 to about 35 cSt, a viscosity index (VI) of at least 80, at least 90 wt % saturated molecules, and less than 0.03 wt % sulfur.2. The method of claim 1 , wherein the membrane is an organic membrane claim 1 , an inorganic membrane claim 1 , a supported liquid or facilitated transport membrane claim 1 , a hybrid or mixed-matrix membrane claim 1 , or a combination thereof.3. The method of claim 2 , wherein the mixed-matrix membranes comprise inorganic particles as dispersed phase and a polymer matrix as continuous phase.4. The method of claim 1 , wherein the membrane is a polymeric membrane claim 1 , a ceramic membrane claim 1 , a porous glass ...

Подробнее
Номер записи: 7
02-01-2020 дата публикации

Production of improved base stocks

Номер: WO2020005745A1
Автор: Benjamin A. Mccool, Dhaval A. BHANDARI, Jason T. CALLA, Yogesh V. Joshi
Принадлежит: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY

Methods and apparatuses are provided for producing base stocks by using a separation process that includes: conducting a hydrocarbon feedstream to a membrane separation zone wherein the feedstream contacts a first side of at least one membrane element; retrieving at least one retentate product stream from the first side of the membrane element; retrieving at least one permeate product stream from a second side of the membrane element; and converting at least a portion of the permeate product stream into the base stock. Also provided are base stocks produced by the separation process.

Подробнее
Номер записи: 8
25-06-2013 дата публикации

A novel molecular sieve composition emm-13, a method of making and a process of using the same

Номер: CA2729266C
Автор: Douglas L. Dorset, Gordon J. Kennedy, Prasenjeet Ghosh, Terry E. Helton, Thomas Yorke, Wieslaw J. Roth, Yogesh V. Joshi
Принадлежит: ExxonMobil Chemical Patents Inc

This disclosure relates to a molecular sieve comprising a framework of tetrahedral atoms bridged by oxygen atoms, the tetrahedral atom framework being defined by a unit cell with atomic coordinates in nanometers shown in Table 3.

Подробнее
Номер записи: 9
04-02-2010 дата публикации

A novel molecular sieve composition emm-13, a method of making and a process of using the same

Номер: CA2729266A1
Автор: Douglas L. Dorset, Gordon J. Kennedy, Prasenjeet Ghosh, Terry E. Helton, Thomas Yorke, Wieslaw J. Roth, Yogesh V. Joshi
Принадлежит: ExxonMobil Chemical Patents Inc

This disclosure relates to a molecular sieve comprising a framework of tetrahedral atoms bridged by oxygen atoms, the tetrahedral atom framework being defined by a unit cell with atomic coordinates in nanometers shown in Table 3.

Подробнее
Номер записи: 10
25-05-2023 дата публикации

Methods for obtaining adsorption isotherms of complex mixtures

Номер: US20230160863A1
Автор: Anantha Sundaram, Carla S. Pereira, Changyub Peak, Nikki J. Bakas, Randall D. Partridge, Wenjun Li, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Co

The present disclosure provides methods for determining adsorption isotherms for complex mixtures. In at least one embodiment, a method for obtaining adsorption isotherms for liquid mixtures includes providing a column comprising an adsorbent. The method includes delivering a composition to the column, the composition comprising a multi-component feed and a solvent. The method includes collecting a sample from the column and introducing the sample to a two dimensional gas chromatograph to determine a time-series concentration of one or more components of the sample. The method includes integrating the time-series concentration of at least one of the one or more components to determine an isotherm of the at least one component. The method includes obtaining quantitative information of the at least one component, based on the isotherm of the at least one component.

Подробнее
Номер записи: 11
10-02-2011 дата публикации

A novel molecular sieve composition emm-13, a method of making and a process of using the same

Номер: WO2010014406A8
Автор: Douglas L. Dorset, Gordon J. Kennedy, Prasenjeet Ghosh, Terry E. Helton, Thomas Yorke, Wieslaw J. Roth, Yogesh V. Joshi
Принадлежит: ExxonMobil Chemical Patents Inc.

This disclosure relates to a molecular sieve comprising a framework of tetrahedral atoms bridged by oxygen atoms, the tetrahedral atom framework being defined by a unit cell with atomic coordinates in nanometers shown in Table 3.

Подробнее
Номер записи: 12
05-05-2021 дата публикации

Production of improved base stocks

Номер: EP3814456A1
Автор: Benjamin A. Mccool, Dhaval A. BHANDARI, Jason T. CALLA, Yogesh V. Joshi
Принадлежит: ExxonMobil Research and Engineering Co

Methods and apparatuses are provided for producing base stocks by using a separation process that includes: conducting a hydrocarbon feedstream to a membrane separation zone wherein the feedstream contacts a first side of at least one membrane element; retrieving at least one retentate product stream from the first side of the membrane element; retrieving at least one permeate product stream from a second side of the membrane element; and converting at least a portion of the permeate product stream into the base stock. Also provided are base stocks produced by the separation process.

Подробнее
Номер записи: 13
31-05-2013 дата публикации

Selecting an improved catalyst composition and hydrocarbon conversion process using same

Номер: SG189126A1
Автор: C Morris Smith, Jose G Santiesteban, Matthew J Vincent, Pallassana S Venkataraman, Terry E Helton, Yogesh V Joshi
Принадлежит: Exxonmobil Chem Patents Inc

The present invention provides a method for selecting an improved catalyst composition comprising a crystalline molecular sieve material having a structure and properties whereby the catalyst composition has at least one active catalytic site with a Mono Alkylation Selectivity Factor (MASF) greater than or equal to 0 kcal/mol ± 0.5 kcal/mol, and optionally further at least one active catalytic site with an Olefin Oligomerization Suppression Factor (OOSF) greater than or equal to 5 kcal/mol ± 0.5 kcal/mol. Further, there is provided an improved process for conversion of hydrocarbon feedstock in the presence of said selected catalyst composition.

Подробнее
Номер записи: 14
15-10-2020 дата публикации

Production and use of metal organic frameworks

Номер: WO2020210103A1
Автор: Gerardo J. MAJANO, Joseph M. Falkowski, Pavel Kortunov, Yogesh V. Joshi
Принадлежит: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY

A process for producing a bimetallic, terephthalate metal organic framework (MOF) having a flexible stmcture and comprising aluminum and iron cations, comprises contacting a water-soluble aluminum salt, a chelated iron compound and 1,4-benzenedicarboxylic acid or a salt thereof with a fluoride-free mixture of water and a polar organic solvent at a reaction temperature of less than 200°C to produce a solid reaction product comprising the MOF.

Подробнее
Номер записи: 15
16-06-2022 дата публикации

Advanced adsorptive separation processes for molecular class separation

Номер: WO2022126082A1
Автор: Changyub Paek, Jayashree KALYANRAMAN, Joseph M. Falkowski, Randall D. Partridge, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Company

A method for separating classes of hydrocarbon compounds from a feed stream including a hydrocarbon mixture is disclosed. The method includes the steps of passing a feed stream through a plurality of separation units arranged in a series in any order, wherein each separation unit has an adsorbent material; and separating classes of hydrocarbon compounds from the feed stream. When one of the plurality of separation units comprises an adsorbent material that is a metal organic framework selected from a zirconium, hafnium, cerium, or titanium-based metal organic framework, then another plurality of separation units includes an adsorption material that is different from the metal organic framework. The method is conducted in a liquid phase. The method can also use a single separation unit with a continuous cyclic bed apparatus. The method can be combined with refining and downstream processes.

Подробнее
Номер записи: 16
18-10-2023 дата публикации

Advanced adsorptive separation processes for molecular class separation

Номер: EP4259752A1
Автор: Changyub Paek, Jayashree KALYANRAMAN, Joseph M. Falkowski, Randall D. Partridge, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Co

A method for separating classes of hydrocarbon compounds from a feed stream including a hydrocarbon mixture is disclosed. The method includes the steps of passing a feed stream through a plurality of separation units arranged in a series in any order, wherein each separation unit has an adsorbent material; and separating classes of hydrocarbon compounds from the feed stream. When one of the plurality of separation units comprises an adsorbent material that is a metal organic framework selected from a zirconium, hafnium, cerium, or titanium-based metal organic framework, then another plurality of separation units includes an adsorption material that is different from the metal organic framework. The method is conducted in a liquid phase. The method can also use a single separation unit with a continuous cyclic bed apparatus. The method can be combined with refining and downstream processes.

Подробнее
Номер записи: 17
07-01-2021 дата публикации

Metal-organic framework materials comprising a pyrazolylbenzoate ligand and methods for production thereof

Номер: WO2021002982A1
Автор: Joseph M. Falkowski, Mary S. Abdulkarim, Simon C. Weston, Yogesh V. Joshi
Принадлежит: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY

Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers, typically as a coordination polymer. Some highly porous MOFs lack stability at ambient conditions. MOFs having ambient condition stability may comprise a plurality of metal clusters (M 4 O clusters, M = a metal), and a plurality of 4-(1 H -pyrazol-4-yl)benzoate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. Methods for synthesizing these MOFs may comprise combining a metal source, such as a preformed metal cluster, with 4-(1 H -pyrazol-4-yl)benzoic acid, and reacting the preformed metal cluster with the 4-(1 H -pyrazol-4-yl)benzoic acid to form a MOF having an at least partially crystalline network structure with a plurality of internal pores defined therein and comprising a plurality of metal clusters coordinated to a multidentate organic ligand comprising 4-(1 H -pyrazol- 4-yl)benzoate.

Подробнее
Номер записи: 18
16-01-2024 дата публикации

Adsorptive process for separation of isoparaffinic lube base stock from lower quality oils

Номер: US11873453B2
Автор: Carmen C. Lasso, Changyub Paek, Randall D. Partridge, Scott J. WEIGEL, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Co

Provided herein are methods and systems of making a high quality isoparaffinic base stock which include contacting an adsorbent material with a hydrocarbon feedstock and a solvent and separating at least some of the one or more high VI components from the hydrocarbon feedstock to produce a first fraction base stock having a first fraction base stock viscosity index. The adsorbent material is desorbed with a second solvent to produce a second fraction base stock having a second fraction base stock viscosity index. In these methods, the first fraction base stock viscosity index is less than the hydrocarbon feedstock viscosity index and the second fraction base stock viscosity index is greater than the hydrocarbon feedstock viscosity index.

Подробнее
Номер записи: 19
14-09-2023 дата публикации

Selective separation of naphthenes for production of enhanced viscosity index lube base stocks

Номер: WO2023172869A1
Автор: Carmen C. Lasso, Changyub Paek, Joseph M. Falkowski, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Company

This disclosure provides methods for separating multi-ring naphthenes from a hydrocarbon feedstock. The hydrocarbon feedstock includes at least normal paraffins, isoparaffins, 1-ring naphthenes attached with a paraffinic alkyl chain, and multi-ring naphthenes. The methods comprise passing the hydrocarbon feedstock and a solvent, at a temperature and pressure through a bed of an adsorbent comprising a metal-organic framework (MOF) adsorbent, to adsorb the multi-ring naphthenes from the hydrocarbon feedstock, thereby producing a base stock product that is depleted in multi-ring naphthenes. The metal-organic framework adsorbent is a porous crystalline material comprised of metal functionalities connected by organic linkers to form a repeating 2-D or 3-D lattice. The base stock product has a viscosity index (VI) greater than the viscosity index of the hydrocarbon feedstock.

Подробнее
Номер записи: 20
09-11-2023 дата публикации

Liquid phase adsorptive separation of cycloparaffins from hydrocarbon mixture

Номер: US20230357650A1
Автор: Carmen C. Lasso, Changyub Paek, Joseph M. Falkowski, Randall D. Partridge, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Co

A process for separating one or more one-ring cycloparaffins and one or more multi-ring cycloparaffins from a hydrocarbon mixture is disclosed. The process comprises the steps of providing the hydrocarbon mixture; and contacting the hydrocarbon mixture with an adsorbent material comprising a metal organic framework to separate the one or more one-ring cycloparaffins and the one or more multi-ring cycloparaffins from the hydrocarbon mixture. The process is conducted in a liquid phase.

Подробнее
Номер записи: 21
14-01-2021 дата публикации

Metal-organic framework materials comprising a pyrazolylcarboxylate ligand and methods for production thereof

Номер: WO2021006964A1
Автор: Joseph M. Falkowski, Mary S. Abdulkarim, Simon C. Weston, Yogesh V. Joshi
Принадлежит: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY

Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers. MOFs having ambient condition stability may comprise a plurality of metal clusters comprising one or more M4O clusters (M is a metal), and a plurality of 4-pyrazolecarboxylate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. The MOFs may have a Pa3 symmetry, which upon activation may convert into Fm3m symmetry. Methods for synthesizing the MOFs may comprise combining a metal source, such as a preformed metal cluster, with 4-pyrazolecarboxylic acid, and reacting the preformed metal cluster with the 4-pyrazolecarboxylic acid to form a MOF having an at least partially crystalline network stmcture with a plurality of internal pores defined therein and comprising a plurality of metal clusters coordinated to a multidentate organic ligand comprising 4-pyrazolecarboxylate.

Подробнее
Номер записи: 22
18-05-2022 дата публикации

Metal-organic framework materials comprising a pyrazolylcarboxylate ligand and methods for production thereof

Номер: EP3996838A1
Автор: Joseph M. Falkowski, Mary S. Abdulkarim, Simon C. Weston, Yogesh V. Joshi
Принадлежит: ExxonMobil Research and Engineering Co

Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers. MOFs having ambient condition stability may comprise a plurality of metal clusters comprising one or more M4O clusters (M is a metal), and a plurality of 4-pyrazolecarboxylate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. The MOFs may have a Pa3 symmetry, which upon activation may convert into Fm3m symmetry. Methods for synthesizing the MOFs may comprise combining a metal source, such as a preformed metal cluster, with 4-pyrazolecarboxylic acid, and reacting the preformed metal cluster with the 4-pyrazolecarboxylic acid to form a MOF having an at least partially crystalline network stmcture with a plurality of internal pores defined therein and comprising a plurality of metal clusters coordinated to a multidentate organic ligand comprising 4-pyrazolecarboxylate.

Подробнее
Номер записи: 23
09-12-2021 дата публикации

Metal-organic framework materials comprising a pyrazolylbenzoate ligand and methods for production thereof

Номер: AU2020299134A1
Автор: Joseph M. Falkowski, Mary S. Abdulkarim, Simon C. Weston, Yogesh V. Joshi
Принадлежит: ExxonMobil Research and Engineering Co

Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers, typically as a coordination polymer. Some highly porous MOFs lack stability at ambient conditions. MOFs having ambient condition stability may comprise a plurality of metal clusters (M

Подробнее
Номер записи: 24
14-09-2023 дата публикации

Selective separation of naphthenes for production of enhanced viscosity index lube base stocks

Номер: US20230287278A1
Автор: Carmen C. Lasso, Changyub Paek, Joseph M. Falkowski, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Co

This disclosure provides methods for separating multi-ring naphthenes from a hydrocarbon feedstock. The hydrocarbon feedstock includes at least normal paraffins, isoparaffins, 1-ring naphthenes attached with a paraffinic alkyl chain, and multi-ring naphthenes. The methods comprise passing the hydrocarbon feedstock and a solvent, at a temperature and pressure through a bed of an adsorbent comprising a metal-organic framework (MOF) adsorbent, to adsorb the multi-ring naphthenes from the hydrocarbon feedstock, thereby producing a base stock product that is depleted in multi-ring naphthenes. The metal-organic framework adsorbent is a porous crystalline material comprised of metal functionalities connected by organic linkers to form a repeating 2-D or 3-D lattice. The base stock product has a viscosity index (VI) greater than the viscosity index of the hydrocarbon feedstock. The methods of this disclosure upgrade Group II base stocks (also Group II+ base stocks) to Group III or Group III+ base stocks, and also upgrade Group III base stocks to Group III+ base stocks.

Подробнее
Номер записи: 25
16-07-2024 дата публикации

Metal-organic framework materials comprising a pyrazolylcarboxylate ligand and methods for production thereof

Номер: US12036539B2
Автор: Joseph M. Falkowski, Mary S. Abdulkarim, Simon C. Weston, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Co

Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers. MOFs having ambient condition stability may comprise a plurality of metal clusters comprising one or more M4O clusters (M is a metal), and a plurality of 4-pyrazolecarboxylate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. The MOFs may have a Pa3 symmetry, which upon activation may convert into Fm3m symmetry. Methods for synthesizing the MOFs may comprise combining a metal source, such as a preformed metal cluster, with 4-pyrazolecarboxylic acid, and reacting the preformed metal cluster with the 4-pyrazolecarboxylic acid to form a MOF having an at least partially crystalline network structure with a plurality of internal pores defined therein and comprising a plurality of metal clusters coordinated to a multidentate organic ligand comprising 4-pyrazolecarboxylate.

Подробнее
Номер записи: 26
16-02-2022 дата публикации

Production and use of metal organic frameworks

Номер: EP3953362A1
Автор: Gerardo J. MAJANO, Joseph M. Falkowski, Pavel Kortunov, Yogesh V. Joshi
Принадлежит: ExxonMobil Research and Engineering Co

A process for producing a bimetallic, terephthalate metal organic framework (MOF) having a flexible stmcture and comprising aluminum and iron cations, comprises contacting a water-soluble aluminum salt, a chelated iron compound and 1,4-benzenedicarboxylic acid or a salt thereof with a fluoride-free mixture of water and a polar organic solvent at a reaction temperature of less than 200°C to produce a solid reaction product comprising the MOF.

Подробнее
Номер записи: 27
16-09-2021 дата публикации

Production and use of metal organic frameworks

Номер: AU2020271020A1
Автор: Gerardo J. MAJANO, Joseph M. Falkowski, Pavel Kortunov, Yogesh V. Joshi
Принадлежит: ExxonMobil Research and Engineering Co

A process for producing a bimetallic, terephthalate metal organic framework (MOF) having a flexible stmcture and comprising aluminum and iron cations, comprises contacting a water-soluble aluminum salt, a chelated iron compound and 1,4-benzenedicarboxylic acid or a salt thereof with a fluoride-free mixture of water and a polar organic solvent at a reaction temperature of less than 200°C to produce a solid reaction product comprising the MOF.

Подробнее
Номер записи: 28
26-05-2022 дата публикации

Production And Use Of Metal Organic Frameworks

Номер: US20220162247A1
Автор: Gerardo J. MAJANO, Joseph M. Falkowski, Pavel Kortunov, Yogesh V. Joshi
Принадлежит: ExxonMobil Research and Engineering Co

A process for producing a bimetallic, terephthalate metal organic framework (MOF) having a flexible structure and comprising aluminum and iron cations, comprises contacting a water-soluble aluminum salt, a chelated iron compound and 1,4-benzenedicarboxylic acid or a salt thereof with a fluoride-free mixture of water and a polar organic solvent at a reaction temperature of less than 200° C. to produce a solid reaction product comprising the MOF.

Подробнее
Номер записи: 29
27-01-2022 дата публикации

Metal-organic framework materials comprising a pyrazolylcarboxylate ligand and methods for production thereof

Номер: AU2020309476A1
Автор: Joseph M. Falkowski, Mary S. Abdulkarim, Simon C. Weston, Yogesh V. Joshi
Принадлежит: ExxonMobil Research and Engineering Co

Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers. MOFs having ambient condition stability may comprise a plurality of metal clusters comprising one or more M4O clusters (M is a metal), and a plurality of 4-pyrazolecarboxylate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. The MOFs may have a Pa3 symmetry, which upon activation may convert into Fm3m symmetry. Methods for synthesizing the MOFs may comprise combining a metal source, such as a preformed metal cluster, with 4-pyrazolecarboxylic acid, and reacting the preformed metal cluster with the 4-pyrazolecarboxylic acid to form a MOF having an at least partially crystalline network stmcture with a plurality of internal pores defined therein and comprising a plurality of metal clusters coordinated to a multidentate organic ligand comprising 4-pyrazolecarboxylate.

Подробнее
Номер записи: 30
29-02-2024 дата публикации

Using computer simulation for ranking materials for post combustion carbon capture

Номер: US20240071575A1
Автор: Anantha Sundaram, Ashish B. Mhadeshwar, Binquan Luan, Jayashree Kalyanaraman, Mathias B. Steiner, Ricardo Luis Ohta, Rodrigo Neumann Barros Ferreira, Sumathy RAMAN, Tonia Elengikal, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Co, International Business Machines Corp

Ranking materials for post combustion carbon capture by characterizing sorbent materials with a molecular model workflow that generates microscopic figures of merit for materials by microscopic properties; and evaluating the materials from the molecular model workflow with a process model workflow that generates macroscopic figures of merit for process steps of a carbon recovery process. The materials for applicability as a sorbent material are ranked using a combined microscopic performance and macroscopic process feasibility generator that ranks the materials according to the microscopic figures of merit for materials and the macroscopic figures of merit for the process steps.

Подробнее
Номер записи: 31
29-10-2024 дата публикации

Liquid phase adsorptive separation of cycloparaffins from hydrocarbon mixture

Номер: US12129436B2
Автор: Carmen C. Lasso, Changyub Paek, Joseph M. Falkowski, Randall D. Partridge, Yogesh V. Joshi
Принадлежит: ExxonMobil Technology and Engineering Co

A process for separating one or more one-ring cycloparaffins and one or more multi-ring cycloparaffins from a hydrocarbon mixture is disclosed. The process comprises the steps of providing the hydrocarbon mixture; and contacting the hydrocarbon mixture with an adsorbent material comprising a metal organic framework to separate the one or more one-ring cycloparaffins and the one or more multi-ring cycloparaffins from the hydrocarbon mixture. The process is conducted in a liquid phase.

Подробнее
Номер записи: 32