Patents by Inventor Mohsen N. Harandi
Mohsen N. Harandi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240060716Abstract: Disclosed are simplified and energy-efficient distillation processes and systems for separating a liquefied natural gas stream to obtain a natural gas stream and a national gas liquid stream. Substantial savings in construction costs and operation energy consumption can be achieved by using the processes and systems of this disclosure. Preferably the separation processes are integrated with other industrial processes such as petroleum refining, petrochemical production, chemical production, and the like.Type: ApplicationFiled: January 18, 2022Publication date: February 22, 2024Inventors: You Fang, Mohsen N. Harandi
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Publication number: 20240010581Abstract: Processes for upgrading a hydrocarbon-containing feed. The feed and a first particle stream can be contacted under pyrolysis conditions to effect pyrolysis of the feed to produce a pyrolysis effluent that can include olefins and the particles, where coke can be formed on the particles. A first gaseous stream and a second particle stream can be obtained from the pyrolysis effluent. At least a portion of the first gaseous stream can be contacted with oligomerization catalyst particles under oligomerization conditions to effect oligomerization of at least a portion of olefins in the first gaseous stream.Type: ApplicationFiled: November 17, 2021Publication date: January 11, 2024Inventors: Mohsen N. Harandi, Paul F. Keusenkothen, Ying Liu
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Publication number: 20230416622Abstract: Processes and for converting a hydrocarbon-containing feed by pyrolysis and gasification/combustion. The hydrocarbon-containing feed can be heated to produce a heated feed that can be separated into a vapor and a liquid. At least a portion of the vapor and/or at least a portion of the liquid and a particle stream can be fed into a pyrolysis zone and contacted therein to effect pyrolysis of the hydrocarbons and produce a pyrolysis effluent.Type: ApplicationFiled: November 17, 2021Publication date: December 28, 2023Inventors: Mohsen N. Harandi, Paul F. Keusenkothen, Ying Liu, James R. Lattner
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Publication number: 20230406700Abstract: Processes for converting a hydrocarbon-containing feed by pyrolysis and gasification/combustion. The hydrocarbon-containing feed and heated particles can be fed into a pyrolysis zone and contacted therein to effect pyrolysis of the hydrocarbons and produce a pyrolysis effluent. A gaseous stream rich in olefins and a particle stream rich in particles that include coke disposed thereon can be obtained from the pyrolysis effluent. A CO2-rich stream that includes, on a dry basis, CO2 at a concentration ?90 vol %, based on the total volume of the CO2-rich stream, can be obtained from the gasification/combustion gas mixture.Type: ApplicationFiled: November 17, 2021Publication date: December 21, 2023Inventors: Mohsen N. Harandi, Paul F. Keusenkothen, Ying Liu
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Patent number: 11603340Abstract: Methanol-to-gasoline conversion may be performed using a heavy gasoline treatment, followed by a separation operation. Methanol may be converted into a first product mixture comprising dimethyl ether (DME) under DME formation conditions. In a methanol-to-gasoline (MTG) reactor, the first product mixture may be converted under MTG conversion conditions to produce a second product mixture comprising light gasoline hydrocarbons and untreated heavy gasoline hydrocarbons. The untreated heavy gasoline hydrocarbons may be separated from the light gasoline hydrocarbons and transferred to a heavy gasoline treatment (HGT) reactor. The untreated heavy gasoline hydrocarbons may be catalytically reacted in the HGT reactor to form a third product mixture. A heavy hydrocarbon fraction may be separated from the third product mixture. The heavy hydrocarbon fraction includes heavy gasoline hydrocarbons having a lower boiling endpoint than does the untreated heavy gasoline hydrocarbons.Type: GrantFiled: September 8, 2020Date of Patent: March 14, 2023Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANYInventors: Mohsen N. Harandi, Mitch L. Hindman, Suriyanarayanan Rajagopalan
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Patent number: 11591527Abstract: Provided are novel process for upgrading naphtha and increasing the yield of reformate. Olefinic naphtha and light paraffins are combined and fed to a catalytic fluidized bed reactor maintained at a temperature about 775° F. and about 1250° F. and an operating pressure between about 10 psig and about 500 psig to produce a product comprising at least 1 wt. % higher C5+ hydrocarbon than the combined feed and at least 55 wt. % aromatics.Type: GrantFiled: July 30, 2020Date of Patent: February 28, 2023Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANYInventors: Mohsen N. Harandi, Yira Y. Aponte Torrealba
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Publication number: 20230016743Abstract: Processes and systems for converting a hydrocarbon-containing feed. The feed and heated particles can be contacted within a pyrolysis zone to effect pyrolysis of at least a portion of the feed to produce a pyrolysis zone effluent and a first gaseous stream rich in olefins and a first particle stream rich in the particles can be obtained therefrom. At least a portion of the first particle stream, an oxidant, and steam can be fed into a gasification zone and contacted therein to effect gasification of at least a portion of coke disposed on the surface of the particles to produce a gasification zone effluent. A second gaseous stream rich in a synthesis gas and a second particle stream rich in heated and regenerated particles can be obtained from the gasification zone effluent. At least a portion of the second particle stream can be fed into the pyrolysis zone.Type: ApplicationFiled: November 11, 2020Publication date: January 19, 2023Inventors: Mohsen N. Harandi, Michael F. Raterman, Paul F. Keusenkothen
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Patent number: 11530173Abstract: A method may include: contacting a light paraffin feed comprising ethane, propane, butane, naphtha or combinations thereof with a restrained catalyst in a reactor; converting at least a portion of the light paraffin feed to ethylene, propylene, or combinations thereof with an olefin selectivity of at least 70 wt. % and methane selectivity of less than 15 wt. %; and withdrawing a product stream from the reactor.Type: GrantFiled: December 13, 2021Date of Patent: December 20, 2022Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANYInventors: Mohsen N. Harandi, Randall J. Meyer
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Publication number: 20220372375Abstract: Systems and methods are provided for co-processing of plastic waste in a coking environment or other thermal conversion environment. The co-processing of plastic waste in a coking environment can be performed by performing four types of processes on the plastic waste. The plastic waste can be conditioned by classifying and sizing of the plastic waste to improve the suitability of the plastic waste for co-processing. The conditioned plastic waste particles can be entrained and/or dissolved into a solvent and/or the base feed. The solution and/or slurry of plastic waste can be passed into a coking environment, such as a fluidized coking environment or a delayed coking environment. The plastic waste can then be co-processed in the coking environment to generate liquid product.Type: ApplicationFiled: October 27, 2020Publication date: November 24, 2022Inventors: Bryan A. Patel, Randolph J. Smiley, Lawrence R. Gros, Mohsen N. Harandi
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Publication number: 20220274081Abstract: A method and apparatus for conversion of petroleum resid fluid through atomization and pyrolysis, including: generating a stream of atomized resid fluid; and delivering the stream to a plurality of cracking particles, wherein the cracking particles have a temperature from 700° C. to 1200° C. when the stream is delivered. Generating the stream of atomized resid fluid may include: delivering heated resid fluid to a nozzle; and delivering diluent fluid to the nozzle. A method and apparatus includes: a first multi-phase fluid application device configured to generate a first stream of atomized resid fluid; a port configured to guide a plurality of cracking particles to intersect the first stream; and a particle heating component configured to heat the cracking particles before the particles intersect the first stream.Type: ApplicationFiled: June 17, 2020Publication date: September 1, 2022Inventors: Paul F. Keusenkothen, Zachary D. Young, Mohsen N. Harandi
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Publication number: 20220275283Abstract: Processes and systems for upgrading a hydrocarbon-containing feed. The hydrocarbon containing feed and a plurality of fluidized particles can be fed into a pyrolysis reaction zone. The plurality of fluidized particles can have a first temperature that can be sufficiently high to enable pyrolysis of at least a portion of the hydrocarbon-containing feed on contacting the particles. The particles can include an oxide of a transition metal element capable of oxidizing molecular hydrogen at the first temperature. The hydrocarbon-containing feed can be contacted with the particles in the pyrolysis reaction zone to effect pyrolysis of at least a portion of the hydrocarbon-containing feed to produce a pyrolysis effluent. At least a portion of the transition metal element in the particles in the pyrolysis effluent can be at a reduced state compared to the transition metal element in the particles fed into the pyrolysis reaction zone.Type: ApplicationFiled: July 30, 2020Publication date: September 1, 2022Inventors: Michael F. Raterman, Mohsen N. Harandi, Paul F. Keusenkothen, David B. Spry
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Patent number: 11415438Abstract: A method for identifying sensor drift can include: setting an autocorrelation threshold for a sensor in a long-short term memory (LSTM) model developed based on historical process measurements from an analogous sensor to a sensor; collecting measured data from the sensor; applying the LSTM model to the measured data from the sensor, wherein applying the LSTM model comprises: applying the LSTM model to the measured data from the sensor to yield LSTM predicted data; calculating key performance indicators (KPIs) of the LSTM data based on an accumulated slow drift error (ASDE) model, wherein the KPIs comprise an error, an accumulated prediction error, an accumulated slow-drift error, and an estimated autocorrelation; and identifying sensor drift when the estimated autocorrelation violates the autocorrelation threshold.Type: GrantFiled: July 16, 2020Date of Patent: August 16, 2022Assignee: ExxonMobil Technology and Engineering CompanyInventors: George A. Khoury, Erin S. Percell, Mohsen N. Harandi, Nicholas W. Silvestri
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Publication number: 20220220045Abstract: A method may include: contacting a light paraffin feed comprising ethane, propane, butane, naphtha or combinations thereof with a restrained catalyst in a reactor; converting at least a portion of the light paraffin feed to ethylene, propylene, or combinations thereof with an olefin selectivity of at least 70 wt. % and methane selectivity of less than 15 wt. %; and withdrawing a product stream from the reactor.Type: ApplicationFiled: December 13, 2021Publication date: July 14, 2022Inventors: Mohsen N. Harandi, Randall J. Meyer
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Publication number: 20220204879Abstract: Methods of the present disclosure may comprise: introducing a first effluent and a second effluent in a gasifier of a partial oxidation unit to produce a waste gas, wherein the first effluent comprises one or more hydrocarbon containing feeds and the second effluent comprises air, enriched air with oxygen or oxygen; selectively removing hydrogen sulfide (H2S) from the waste gas; combining the waste gas and steam in a water-gas shift unit to produce a shift gas comprising hydrogen and carbon dioxide; separating the carbon dioxide from the shift gas in a carbon capture unit to produce a carbon dioxide-enriched effluent and an effluent comprising a hydrogen- and nitrogen-enriched mixture; and recovering the carbon dioxide from the carbon dioxide-enriched effluent.Type: ApplicationFiled: December 24, 2020Publication date: June 30, 2022Inventors: Kevin B. Daly, Mohsen N. Harandi, Everett J. O'Neal, P. Scott Northrop, Narasimhan Sundaram, David L. Stern
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Patent number: 11352567Abstract: Processes for converting an organic-material-containing feed comprising contacting the feed with a plurality of fluidized hot particles in a pyrolysis zone to product a first pyrolysis effluent, optionally contacting the first pyrolysis effluent with a quenching stream to impart additional pyrolysis of organic materials contained in the quenching stream, separating at least a portion of the particles and feeding them to a combustion zone where the particles are heated to an elevated temperature, optionally contacting the combustion zone effluent with a second organic-material-containing stream to produce, e.g., syngas, and feeding at least a portion of the heated particles to the pyrolysis zone.Type: GrantFiled: July 30, 2020Date of Patent: June 7, 2022Assignee: ExxonMobil Chemical Patents Inc.Inventors: Mohsen N. Harandi, Paul F. Keusenkothen
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Publication number: 20220098495Abstract: Disclosed are process and system for making an asphalt product and an olefin product from an asphaltenes-rich feed without using a vacuum distillation column. The feed is first deep stripped in a first stripping column using a stripping vapor such as steam and/or a C2-C3 paraffins-rich stream to obtain a bottoms liquid effluent having a high cutpoint and an overheads effluent comprising gas oil, lighter hydrocarbons, and the stripping vapor. The high-boiling point bottoms liquids effluent, with optional additional separation and/or treatment, can be used as asphalt products. The overheads effluent, with optional additional separation, can be fed into a pyrolysis furnace cracker, where it is converted into a cracker product mixture comprising olefins, lighter hydrocarbons, hydrogen, and the like, which can be recovered in a products recovery subsystem.Type: ApplicationFiled: January 17, 2020Publication date: March 31, 2022Inventors: Mohsen N. Harandi, Paul F. Keusenkothen
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Patent number: 11130915Abstract: Methanol-to-gasoline (MTG) conversion may be performed with forward methanol processing. Methanol may be fed to a first reactor where it may be catalytically converted under dimethyl ether formation conditions in the presence of a first catalyst to form a product mixture comprising dimethyl ether (DME), methanol, and water. The DME may be separated from the methanol and the water and delivered to a second reactor. In the second reactor, the DME may be catalytically converted under MTG conversion conditions in the presence of a second catalyst to form a second product mixture comprising gasoline hydrocarbons and light hydrocarbon gas. The methanol and the water from the first reactor may be separated further to obtain substantially water-free methanol, which may be delivered to the second reactor. The separation of methanol from the water may be performed using the light hydrocarbon gas to effect stripping of the methanol.Type: GrantFiled: June 16, 2020Date of Patent: September 28, 2021Assignee: ExxonMobil Research and Engineering CompanyInventors: Mohsen N. Harandi, Suriyanarayanan Rajagopalan, David W. Staubs, Terry E. Helton, Mitch L. Hindman
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Patent number: 11118115Abstract: Methanol-to-gasoline (MTG) conversion may be performed with a methanol recycling. Methanol may be fed to a first reactor where it may be catalytically converted under dimethyl ether formation conditions in the presence of a first catalyst to form a product mixture comprising dimethyl ether (DME), methanol, and water. The DME may be separated from the methanol and the water and delivered to a second reactor. In the second reactor, the DME may be catalytically converted under MTG conversion conditions in the presence of a second catalyst to form a second product mixture comprising gasoline hydrocarbons and light hydrocarbon gas. The methanol and the water from the first reactor may be separated further to obtain substantially water-free methanol, which may be returned to the first reactor. The separation of methanol from the water may be performed using the light hydrocarbon gas to effect stripping of the methanol.Type: GrantFiled: June 16, 2020Date of Patent: September 14, 2021Assignee: ExxonMobil Research and Engineering CompanyInventors: Mohsen N. Harandi, Suriyanarayanan Rajagopalan, David W. Staubs, Terry E. Helton, Mitch L. Hindman
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Patent number: 11103844Abstract: 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.Type: GrantFiled: June 26, 2019Date of Patent: August 31, 2021Assignee: ExxonMobil Research and Engineering CompanyInventor: Mohsen N. Harandi
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Publication number: 20210238489Abstract: Systems and methods are provided for refining crude oils and/or other broad boiling range feedstocks to form fuels. A flash separation can be used to separate the feed into a lower boiling fraction and a higher boiling fraction. After the flash separation, the higher boiling portion is passed into a pyrolysis reactor for conversion of higher boiling compounds and formation of light olefins. The lower boiling fraction can be combined with the resulting pyrolysis effluent as a quench stream. The combined, partially pyrolyzed stream can then be passed into an olefin oligomerization process to convert the olefins formed during pyrolysis into naphtha and/or diesel boiling range compounds. After the olefin oligomerization process, one or more separations can be performed to generate various fractions, including but not limited to a naphtha fraction, a distillate fuel fraction, a fuel oil fraction, a light hydrocarbon recycle stream, and a CO2-containing stream.Type: ApplicationFiled: January 30, 2020Publication date: August 5, 2021Inventor: Mohsen N. Harandi