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公开(公告)号：US20230131732A1
公开(公告)日：2023-04-27
申请号：US17973975
申请日：2022-10-26
发明人： Dong Min Yun , Ju Hwan Im , Hee Soo Kim , Do Kyoung Kim , Dae Hyun Choo
摘要： Disclosed is a process for converting methane into value-added compounds. In this process, a gas mixture containing hydrogen as well as high-concentration acetylene formed through methane pyrolysis (e.g. non-oxidative coupling of methane) is selectively hydrogenated in the presence of a bimetallic supported catalyst. This process obtains ethylene from acetylene in the gas mixture while unreacted methane and hydrogen are recovered as byproducts and/or additionally recycled.
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公开(公告)号：US12064750B2
公开(公告)日：2024-08-20
申请号：US17472850
申请日：2021-09-13
发明人： Ju Hwan Im , Dong Min Yun , Ho Won Lee , Young Eun Cheon , Hee Soo Kim
CPC分类号： B01J23/75 , B01J21/066 , B01J35/613 , B01J35/615 , B01J35/633 , B01J35/635 , B01J37/0213 , B01J37/08
摘要： Provided is a dehydrogenation catalyst having single-atom cobalt loaded onto a support including a zirconia core surface-modified with silica, a method for producing the dehydrogenation catalyst, and a method for producing corresponding olefin through dehydrogenation of paraffin, particularly light paraffin, in the presence of the dehydrogenation catalyst.
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3.发明公开公开(公告)号：US20240301307A1
公开(公告)日：2024-09-12
申请号：US18414904
申请日：2024-01-17
发明人： Hee Jung Jeon , Ok Youn Kim , Dong Min Yun
CPC分类号： C10K1/005 , C10J3/482 , C10J3/84 , C10K3/003 , C10K3/026 , C10K3/04 , C10K3/06 , C10J2300/0946 , C10J2300/0976 , C10J2300/0986 , C10J2300/1618 , C10J2300/1696 , C10J2300/1807
摘要： Provided are a method for manufacturing syngas including the steps of (S1) heat-treating organic waste in a first reactor to produce a first mixed gas; (S2) introducing the first mixed gas to a second reactor and subjecting it to methane reforming in the presence of a catalyst to produce a second mixed gas; (S3) separating the catalyst and carbon dioxide from the second mixed gas and recovering a third mixed gas from which the catalyst and the carbon dioxide have been removed; (S4) converting the carbon dioxide separated in step (S3) into carbon monoxide through a reverse Boudouard reaction in a third reactor; and (S5) mixing the third mixed gas recovered in step (S3) and the carbon monoxide converted in step (S4) to produce syngas, and an apparatus for manufacturing syngas.
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4.发明公开公开(公告)号：US20240158229A1
公开(公告)日：2024-05-16
申请号：US18374020
申请日：2023-09-28
发明人： Hee Jung Jeon , Ok Youn Kim , Dong Min Yun
CPC分类号： C01B3/40 , C01B3/24 , C01B3/50 , C01B32/40 , C01B32/50 , C01B2203/0238 , C01B2203/1082 , C01B2203/1235 , C01B2203/168
摘要： Provided is a method for manufacturing syngas including (S1) heat-treating organic wastes under hydrogen and a catalyst in a first reactor; (S2) separating the catalyst and the hydrogen from a product of (S1) and recovering a first mixed gas from which the catalyst and the hydrogen have been removed; (S3) reforming the first mixed gas recovered in (S2) with water vapor to form a product; (S4) separating carbon dioxide from a product of (S3) and recovering a second mixed gas from which the carbon dioxide has been removed; (S5) converting the carbon dioxide separated in (S4) into carbon monoxide through a reverse Boudouard reaction in the second reactor; and (S6) mixing the hydrogen separated in (S2), the mixed gas recovered in (S4), and the carbon monoxide converted in (S5) to produce syngas.
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公开(公告)号：US11981632B2
公开(公告)日：2024-05-14
申请号：US17976045
申请日：2022-10-28
发明人： Dong Min Yun , Hee Soo Kim , Ji Hoon Lee , Jung Geun Jang , Dae Hyun Choo
IPC分类号： C07C5/09 , B01J21/04 , B01J23/745 , C01B3/26 , C01B32/05 , C01B32/162 , C01B32/205 , C07C2/76 , C07C2/78 , C07C2/80 , C07C2/84 , C07C7/09 , C09C1/48
CPC分类号： C07C5/09 , B01J21/04 , B01J23/745 , C01B3/26 , C01B32/05 , C01B32/162 , C01B32/205 , C07C2/78 , C07C2/80 , C07C2/84 , C07C7/09 , C09C1/48 , C01B2203/0277 , C01B2203/062 , C01B2203/1047 , C01P2006/80 , C07C2521/04 , C07C2523/745
摘要： Disclosed is a method for producing hydrogen, carbon, and ethylene from a methane-containing feedstock even without recycling of unreacted methane by providing a single process or system in which a methane-containing feedstock is subjected to two methane conversion steps. The method includes a first conversion step of producing hydrogen and carbonaceous materials and a second conversion step of producing acetylene from unreacted methane and hydrogen discharged from the first conversion step while maintaining a good methane conversion and suppressing coke formation, followed by separating and recovering ethylene and hydrogen produced through selective hydrogenation of acetylene.
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公开(公告)号：US20230133746A1
公开(公告)日：2023-05-04
申请号：US17976045
申请日：2022-10-28
发明人： Dong Min Yun , Hee Soo Kim , Ji Hoon Lee , Jung Geun Jang , Dae Hyun Choo
IPC分类号： C07C5/09 , C01B32/05 , C01B32/205 , C01B32/162 , C09C1/48 , C01B3/26 , B01J23/745 , B01J21/04 , C07C7/09 , C07C2/84 , C07C2/80 , C07C2/78
摘要： Disclosed is a method for producing hydrogen, carbon, and ethylene from a methane-containing feedstock even without recycling of unreacted methane by providing a single process or system in which a methane-containing feedstock is subjected to two methane conversion steps. The method includes a first conversion step of producing hydrogen and carbonaceous materials and a second conversion step of producing acetylene from unreacted methane and hydrogen discharged from the first conversion step while maintaining a good methane conversion and suppressing coke formation, followed by separating and recovering ethylene and hydrogen produced through selective hydrogenation of acetylene.
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公开(公告)号：US20220105496A1
公开(公告)日：2022-04-07
申请号：US17472850
申请日：2021-09-13
发明人： Ju Hwan Im , Dong Min Yun , Ho Won Lee , Young Eun Cheon , Hee Soo Kim
摘要： Disclosed are a dehydrogenation catalyst having single-atom cobalt loaded onto a support including a zirconia core surface-modified with silica, a method for producing the dehydrogenation catalyst, and a method for producing corresponding olefin through dehydrogenation of paraffin, particularly light paraffin, in the presence of the dehydrogenation catalyst.
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8.发明公开公开(公告)号：US20240140795A1
公开(公告)日：2024-05-02
申请号：US18373533
申请日：2023-09-27
发明人： Hee Jung Jeon , Ok Youn Kim , Dong Min Yun
IPC分类号： C01B3/44 , B01J8/00 , B01J8/18 , B01J8/26 , C01B3/52 , C01B3/56 , C01B32/40 , C07C1/04 , C10J1/26
CPC分类号： C01B3/44 , B01J8/0055 , B01J8/1818 , B01J8/26 , C01B3/52 , C01B3/56 , C01B32/40 , C07C1/043 , C10J1/26 , C01B2203/0244 , C01B2203/0415 , C01B2203/042 , C01B2203/0475 , C01B2203/1058 , C01B2203/1082 , C01B2203/1241 , C10J2300/0946
摘要： Provided is a method of manufacturing syngas including (S1) heat-treating organic wastes under a catalyst in a first reactor to produce a first mixed gas; (S2) separating the catalyst and carbon dioxide (CO2) from the first mixed gas, and recovering a mixed gas from which the catalyst and the carbon dioxide (CO2) have been removed; (S3) converting the carbon dioxide (CO2) separated in (S2) into carbon monoxide (CO) by a reverse Boudouard reaction in a second reactor; and (S4) mixing the mixed gas recovered in (S2) and the carbon monoxide (CO) converted in (S3) to produce syngas.
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公开(公告)号：US11858886B2
公开(公告)日：2024-01-02
申请号：US17973975
申请日：2022-10-26
发明人： Dong Min Yun , Ju Hwan Im , Hee Soo Kim , Do Kyoung Kim , Dae Hyun Choo
CPC分类号： C07C5/08 , B01J23/8926 , B01J35/1019 , B01J35/1042 , B01J35/1061 , B01J37/0234 , B01J37/18 , B01J2523/17 , B01J2523/824 , C07C2523/72 , C07C2523/89
摘要： Disclosed is a process for converting methane into value-added compounds. In this process, a gas mixture containing hydrogen as well as high-concentration acetylene formed through methane pyrolysis (e.g. non-oxidative coupling of methane) is selectively hydrogenated in the presence of a bimetallic supported catalyst. This process obtains ethylene from acetylene in the gas mixture while unreacted methane and hydrogen are recovered as byproducts and/or additionally recycled.
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公开(公告)号：US11766664B2
公开(公告)日：2023-09-26
申请号：US17358230
申请日：2021-06-25
发明人： Young Eun Cheon , Hee Soo Kim , Dong Min Yun , Ho Won Lee , Ju Hwan Im
CPC分类号： B01J23/75 , B01J21/08 , B01J35/0013 , B01J35/0046 , B01J35/026 , B01J37/0217 , B01J37/0221 , B01J37/088 , C07C5/3332 , C07C2521/08 , C07C2523/75
摘要： Disclosed herein are a dehydrogenation catalyst having single-atom cobalt loaded onto a silica support that has undergone pretreatment including a thermal treatment and a high-temperature aqueous treatment (reaction), a preparation method therefor, and a method for producing olefins by dehydrogenating corresponding paraffins, particularly light paraffins in the presence of the dehydrogenation catalyst.
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