Abstract: Disclosed are a catalyst for oxidative coupling reaction of methane, a method for preparing the same, and a method for oxidative coupling reaction of methane using the same. The catalyst includes a mixed metal oxide, which is a mixed oxide of metals including sodium (Na), tungsten (W), manganese (Mn), barium (Ba) and titanium (Ti). It is possible to obtain paraffins, such as ethane and propane, and olefins, such as ethylene and propylene, with high efficiency through the method for oxidative coupling reaction of methane using the catalyst.
Type:
Grant
Filed:
December 17, 2021
Date of Patent:
June 13, 2023
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jeong-Myeong Ha, Lien Thi Do, Jae Wook Choi, Dong Jin Suh, Young Hyun Yoon, Gi Seok Yang, Hyun Joo Lee
Abstract: Methods of forming arenes, including asymmetrical arenes, such as asymmetrical pyrene derivatives. Substituents of starting materials may be selected to direct a photochemical cascade and possibly a 1,2-aryl shift. The methods may include a Mallory cyclization, which is controlled, at least in part, by substituents of the starting materials. Compounds and compositions including asymmetrical arenes.
Type:
Grant
Filed:
September 6, 2022
Date of Patent:
June 6, 2023
Assignee:
The Florida State University Research Foundation, Inc.
Inventors:
Nikolas Ramos Dos Santos, Igor Alabugin, Alexandria Palazzo
Abstract: A device and a process to propagate molecular growth of hydrocarbons, either straight or branched chain structures, that naturally occur in the gas phase of a first gas to gas phase molecules of a second gas having higher molecular chain lengths than the hydrocarbons of the first gas. According to one embodiment, the device includes a grounded reactor vessel having a gas inlet, a product outlet, and an electrode within the vessel; a power supply coupled to the electrode for creating an electrostatic field within the vessel for converting the first gas to a second gas.
Abstract: A process and catalyst are provided for the non-oxidative dehydrogenation of propane for the production of propylene as petrochemical building blocks. The process provides a direct single-step gas-phase dehydration of propane mixed with nitrogen in the presence and absence of steam/hydrogen over supported bimetallic alumina-silicates zeolites. The catalyst contains no precious metal entities and may contain one metal from group VIB in combination with another metal from group IIIA or IVA supported on FAU, MFI, KFI, BEA type alumina-silicates zeolites. The process provides a propane conversion of 18% to 52% with a propylene yield of 10% to 25%.
Type:
Grant
Filed:
July 1, 2021
Date of Patent:
May 23, 2023
Assignee:
Council of Scientific & Industrial Research
Inventors:
Bipul Sarkar, Ankit Agrawal, Om Vir Singh, Indrajit Kumar Ghosh, Shailendra Tripathi, Sanat Kumar, Anjan Ray
Abstract: In accordance with one or more embodiments of the present disclosure, a method for producing aromatic compounds from pyrolysis gasoline includes hydrotreating a stream comprising the pyrolysis gasoline, thereby producing a hydrotreated pyrolysis gasoline stream comprising paraffins; aromatizing the hydrotreated pyrolysis gasoline stream comprising paraffins, thereby producing a stream comprising benzene-toluene-xylenes (BTX); and processing the stream comprising BTX in an aromatics recovery complex, thereby producing the aromatic compounds from the pyrolysis gasoline.
Abstract: Disclosed are a bifunctional catalyst and a preparation method therefor, the bifunctional catalyst being suitable to produce high-value aromatic hydrocarbons by subjecting alkylaromatic hydrocarbons to a disproportionation/transalkylation/dealkylation reaction while suppressing aromatic loss or subjecting C8 aromatic hydrocarbons to an isomerization reaction while suppressing xylene loss.
Type:
Grant
Filed:
March 31, 2022
Date of Patent:
May 16, 2023
Assignee:
SK Innovation Co., Ltd.
Inventors:
Sang Il Lee, Ji Hoon Lee, Young Eun Cheon
Abstract: A process for the purification of isobutene from a C4 stream with at least 1-butene, 2-butene, isobutane and isobutene includes isomerizing 1-butene from a stream of material which is concentrated in isobutane and isobutene obtained from the C4 stream into 2-butene, using a catalyst in an isomerization reactor; supplying a product stream from the isomerization reactor to a rectification column; and providing a stream of material which is concentrated in isobutene. A processing facility is utilized for the purification of isobutene from the C4 stream.
Type:
Grant
Filed:
August 2, 2019
Date of Patent:
May 16, 2023
Assignees:
OMV DOWNSTREAM GMBH, BASF SE
Inventors:
Suman Thotla, Pawel Tadeusz Czajka, Stefan Manfred Iselborn, Kai-Uwe Wemhöner, Jürgen Popp
Abstract: The present disclosure relates to methods for producing renewable base oil and other valuable renewable fuel components from a feedstock of biological origin comprising free fatty acids and glycerides. The feedstock is first separated to two or more effluent streams containing a fatty acid fraction and glyceride fraction. The glycerides are hydrolyzed to free fatty acids and glycerol, and the fatty acids thus obtained are recycled to the separating. The fatty acids are then converted to the base oil by ketonisation, hydrodeoxygenation and hydroisomerisation. The glycerol is converted to propanols by selective hydrogenolysis.
Type:
Grant
Filed:
December 20, 2019
Date of Patent:
May 9, 2023
Assignee:
NESTE OYJ
Inventors:
Jukka Myllyoja, Jaana Kanervo, Jaana Makkonen, Marja Tiitta
Abstract: Integrated pyrolysis and hydrocracking systems and processes for efficiently cracking of hydrocarbon mixtures, such as mixtures including compounds having a normal boiling temperature of greater than 450° C., 500° C., or even greater than 550° C., such as whole crudes for example, are disclosed.
Type:
Grant
Filed:
October 1, 2020
Date of Patent:
April 25, 2023
Assignee:
LUMMUS TECHNOLOGY LLC
Inventors:
Kandasamy Meenakshi Sundaram, Stephen J. Stanley, Ronald M. Venner, Ujjal K. Mukherjee
Abstract: The present disclosure relates to methods for selectively hydrogenating acetylene, to methods for starting up a selective hydrogenation reactor, and to hydrogenation catalysts useful in such methods. In one aspect, the disclosure provides a method for selectively hydrogenating acetylene, the method comprising contacting a catalyst composition with a process gas. The catalyst composition comprises a porous support, palladium, and one or more ionic liquids. The process gas includes ethylene, present in the process gas in an amount of at least 20 mol. %; acetylene, present in the process gas in an amount of at least 1 ppm; and 0 to 190 ppm or at least 600 ppm carbon monoxide. At least 90% of the acetylene present in the process gas is hydrogenated, and the selective hydrogenation is conducted without thermal runaway.
Type:
Grant
Filed:
October 22, 2019
Date of Patent:
April 25, 2023
Assignee:
Clariant International Ltd
Inventors:
Darren Adams, Mingyong Sun, Uwe Duerr, Denise Cooper, Brian Heasley, Ling Xu, Tina Clinton
Abstract: 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.
Type:
Grant
Filed:
December 6, 2021
Date of Patent:
April 25, 2023
Assignee:
EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
Inventors:
Changyub Paek, Randall D. Partridge, Yogesh V. Joshi, Jayashree Kalyanaraman, Joseph M. Falkowski
Abstract: Petrochemical products may be produced from a hydrocarbon material by a process that may include separating the hydrocarbon material into at least a lesser boiling point fraction and a greater boiling point fraction, cracking the lesser boiling point fraction in a first reactor in the presence of a catalyst at a reaction temperature of from 500° C. to 700° C. to produce a first cracking reaction product, and cracking the greater boiling point fraction in a second reactor in the presence of the catalyst at a reaction temperature of from 500° C. to 700° C. to produce a second cracking reaction product. The hydrocarbon material may be crude oil. The first reactor may be a riser, and the second reactor may be a downer. The catalyst may be passed from the first reactor to the second reactor, from the second reactor to a regenerator, and from the regenerator to the first reactor, such that the catalyst is circulated between the first reactor, second reactor, and regenerator.
Abstract: The present disclosure relates to methods for selectively hydrogenating acetylene, to methods for starting up a selective hydrogenation reactor, and to hydrogenation catalysts useful in such methods. In one aspect, the disclosure provides a method for selectively hydrogenating acetylene, the method comprising contacting a catalyst composition with a process gas. The catalyst composition comprises a porous support, palladium, and one or more ionic liquids. The process gas includes ethylene, present in the process gas in an amount of at least 20 mol. %; and acetylene, present in the process gas in an amount of at least 1 ppm. At least 90% of the acetylene present in the process gas is hydrogenated, and the selective hydrogenation is conducted without thermal runaway. Notably, the process gas is contacted with the catalyst at a gas hourly space velocity (GHSV) based on total catalyst volume in one bed or multiple beds of at least 7,100 h?1.
Type:
Grant
Filed:
October 22, 2019
Date of Patent:
April 11, 2023
Assignee:
Clariant International Ltd
Inventors:
Darren Adams, Mingyong Sun, Uwe Duerr, Denise Cooper, Brian Heasley, Ling Xu, Tina Clinton
Abstract: The present invention provides a process for the hydrogenation of polyunsaturated hydrocarbon compounds, in particular di-olefins and alkynes, more particularly di-olefins, said process comprising contacting a feed comprising one or more polyunsaturated hydrocarbon compounds with a catalyst comprising copper and carbon in the presence of hydrogen, preferably wherein the catalyst is a copper catalyst on a carbon-containing support. The present invention also provides a process for producing a copper catalyst on a carbon-containing support and the use of a copper catalyst on a carbon-containing support to increase the selectivity towards di-olefin hydrogenation over mono-olefin hydrogenation in a process for hydrogenation of one or more di-olefins.
Type:
Grant
Filed:
June 3, 2019
Date of Patent:
March 28, 2023
Assignee:
BP P.L.C.
Inventors:
Rolf Beerthuis, Krijn De Jong, Petra De Jongh, John Glenn Sunley
Abstract: Processes for cracking an alkane reactant to form a lower aliphatic hydrocarbon product and for converting an alkane reactant into a higher aliphatic hydrocarbon product are disclosed, and these processes include a step of contacting the alkane reactant with a supported chromium (II) catalyst. In addition to the formation of various aliphatic hydrocarbons, such as linear alkanes, branched alkanes, 1-alkenes, and internal alkenes, aromatic hydrocarbons and hydrogen also can be produced.
Type:
Grant
Filed:
June 23, 2022
Date of Patent:
March 14, 2023
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Carlos A. Cruz, Max P. McDaniel, Masud M. Monwar, Jared Barr
Abstract: In some examples, hydrocarbon feed and a diluent such as steam are mixed, and heated. A vapor phase product and a liquid phase product can be separated from the heated mixture. The liquid phase product can be hydroprocessed to produce a first hydroprocessed product. A pitch and one or more hydrocarbon products can be separated from the first hydroprocessed product. The pitch can be contacted with a diluent to produce a pitch-diluent mixture. The pitch-diluent mixture can be hydroprocessed to produce a second hydroprocessed product. A hydroprocessor heavy product and a utility fluid product can be separated from the second hydroprocessed product. The diluent can be or include at least a portion of the utility fluid product. The vapor phase product can be steam cracked to produce a steam cracker effluent. A tar product and a process gas that can include ethylene and propylene can be separated from the steam cracker effluent.
Type:
Grant
Filed:
November 4, 2019
Date of Patent:
February 28, 2023
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
John R. DeLaney, John J. Monson, Teng Xu, Kendele S. Galvan
Abstract: Processes for producing olefins include integration of steam cracking with a dual catalyst metathesis process. The processes include steam cracking a hydrocarbon feed to form a cracking reaction effluent containing butenes, separating the cracking reaction effluent to produce a cracking C4 effluent including normal butenes, isobutene, and 1,3-butadiene, subjecting the cracking C4 effluent to selective hydrogenation to convert 1,3-butadiene in the cracking C4 effluent to normal butenes, removing isobutene from a hydrogenation effluent to produce a metathesis feed containing normal butenes, and contacting the metathesis feed with a metathesis catalyst and a cracking catalyst directly downstream of the metathesis catalyst to produce a metathesis reaction effluent.
Type:
Grant
Filed:
March 26, 2020
Date of Patent:
February 7, 2023
Assignee:
Saudi Arabian Oil Company
Inventors:
Sohel K Shaikh, Raed H Abudawoud, Zhonglin Zhang, Munir D Khokhar, Furqan Aljumah
Abstract: The present invention and embodiments thereof provide a process to separate ethylene products from impurities such as nitrogen, hydrogen, ethane, propane and isobutane without the need for distillation processes.
Abstract: The present invention, and embodiments thereof, provide a process to separate ethylene products from impurities such as nitrogen, hydrogen, ethane, propane and isobutane without the need for distillation processes.