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1.发明申请公开(公告)号：US20210387142A1
公开(公告)日：2021-12-16
申请号：US17050877
申请日：2018-06-04
Applicant: SK GAS CO., LTD. , KOCAT INC.
Inventor： Ung Gi HONG , Mi Young LEE , Deuk Soo PARK , Jung Ho KIN , Jin Young KIM , Chang Hee YANG
Abstract: Provided is a method for using selective non-catalytic reduction to reduce nitrogen dioxide in exhaust gas generated during an olefin production process. Nitrogen dioxide generated in a catalyst regeneration step of a continuous PDH process can be efficiently removed by the method of the present disclosure. Ultimately, the generation of visible fumes can be prevented through the removal of nitrogen dioxide.
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2.发明公开公开(公告)号：US20240095548A1
公开(公告)日：2024-03-21
申请号：US18275709
申请日：2022-04-27
Applicant: SK GAS CO., LTD.
Inventor： Ung Gi HONG , Sung Joo YEO , Seung Hwan KONG , Min Ho KIM , Hae Bin SHIN , Hee Dong CHOI , Young Gook KYE
IPC: G06N5/022
CPC classification number: G06N5/022
Abstract: A system for predicting process changes by using key factors in a commercial chemical process, includes: a key factor extraction and individual tag importance backup unit that extracts yield key factors by calculating the importance of each tag, and backs up importance data for each tag; and a yield prediction model training and yield prediction performing unit that performs yield prediction model training by using the importance of each tag accumulated in the key factor extraction and individual tag importance backup unit, and performs yield prediction so as to output a yield prediction result, evaluates performance, and selects an optimal prediction model.
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3.发明申请公开(公告)号：US20210354113A1
公开(公告)日：2021-11-18
申请号：US17281114
申请日：2019-05-14
Inventor： Yong Ki PARK , Won Choon CHOI , Daesung PARK , Hawon PARK , Changyeol SONG , Deuk Soo PARK , Ung Gi HONG , Miyoung LEE
Abstract: Disclosed is a catalyst for producing an olefin including an oxygen carrier material and a dehydrogenation catalyst. The catalyst allows hydrogen to be converted into water by using oxygen inside the lattice of an oxide catalyst without the additional supply of oxygen, and thus, the conversion can be increased while the decrease in selectivity, which is a disadvantage of an additional oxidative dehydrogenation reaction (ODHP), is suppressed.
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公开(公告)号：US20250115475A1
公开(公告)日：2025-04-10
申请号：US18729063
申请日：2023-01-16
Inventor： Woo Jae KIM , Ung Gi HONG , Hyeong Chan AHN , Tae Hyeop KIM
Abstract: A dry hydrogen production device includes: a reactor to which water or vapor is not supplied; heating means configured to heat the reactor to 200 to 800° C.; a supply line for hydroxide of at least one of alkali and alkali earth connected to the reactor; a biomass supply line connected to the reactor; at least one carrier gas supply line connected to the reactor; a gas phase reaction product outflow line connected to the reactor, a solid-gas separator connected to the gas phase reaction product outflow line; and a gas separator connected to the solid-gas separator.
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5.发明申请公开(公告)号：US20220401930A1
公开(公告)日：2022-12-22
申请号：US17776432
申请日：2020-11-24
Inventor： Deuk Soo PARK , Ung Gi HONG , Hae Bin SHIN , Daesung PARK , Hawon PARK , Changyeol SONG , Won Choon CHOI , Yong Ki PARK
Abstract: A dehydrogenation catalyst for producing olefins from alkane gases, in which cobalt and zinc are supported on alumina. A method for preparing the dehydrogenation catalyst for producing olefins from alkane gases, includes: preparing a mixed solution by mixing cobalt and zinc precursors with water; preparing a supported catalyst by impregnating alumina with the mixed solution; drying the supported catalyst; and calcining the dried supported catalyst at 500° C. to 900° C.
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Patent Agency Ranking
公开(公告)号：US20210354112A1
公开(公告)日：2021-11-18
申请号：US17281132
申请日：2019-12-04
Applicant: SK GAS CO., LTD. , KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Yong Ki PARK , Won Choon CHOI , Daesung PARK , Hawon PARK , Changyeol SONG , Deuk Soo PARK , Ung Gi HONG , Miyoung LEE , Sungwon KIM , Chaeeun YEO
IPC: B01J21/06 , B01J8/38 , C07C5/333 , B01J21/04 , B01J35/02 , B01J23/26 , B01J23/30 , B01J35/10 , B01J37/08
Abstract: Disclosed is a method of producing an olefin using a circulating fluidized bed process, including: (a) supplying a hydrocarbon mixture including propane and a dehydrogenation catalyst to a riser which is in a state of a fast fluidization regime, and thus inducing a dehydrogenation reaction; (b) separating an effluent from the dehydrogenation reaction into the catalyst and a propylene mixture; (c) stripping, in which a residual hydrocarbon compound is removed from the catalyst separated in step (b); (d) mixing the catalyst stripped in step (c) with a gas containing oxygen and thus continuously regenerating the catalyst; (e) circulating the catalyst regenerated in step (d) to step (a) and thus resupplying the catalyst to the riser; and (f) cooling, compressing, and separating the propylene mixture, which is a reaction product separated in step (b), and thus producing a propylene product.
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公开(公告)号：US20240401504A1
公开(公告)日：2024-12-05
申请号：US18698658
申请日：2022-09-23
Applicant: SK GAS CO., LTD.
Inventor： Jungho CHO , Ung Gi HONG , Mi Young LEE
Abstract: LNG cold power generator includes: a working fluid including carbon dioxide and ethane; a pump; an evaporator; a turbine; and a condenser. A molar ratio of the carbon dioxide and the ethane is 85˜95:15:0.5. The working fluid is used in a closed Rankine cycle. A supply pressure of supplied LNG is adjusted to a pressure at which it becomes a saturated liquid. A temperature at an outlet of the condenser is adjusted to a saturated vapor temperature of LNG. A pressure at an outlet of the pump is adjusted to a critical pressure of a mixed working fluid. The cycle includes two turbines and a heater provided therebetween. The heater heats the working fluid to prevent condensation thereof.
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8.发明公开公开(公告)号：US20240300871A1
公开(公告)日：2024-09-12
申请号：US18269165
申请日：2021-11-16
Inventor： Daesung PARK , Hawon PARK , Changyeol SONG , Eun Sang KIM , Yong Ki PARK , Won Choon CHOI , Ung Gi HONG , Miyoung LEE , Hae Bin SHIN , Sanghyeon PARK , Deuk Soo PARK
CPC classification number: C07C5/325 , C07C7/005 , C07C2521/02 , C07C2521/04 , C07C2523/42 , C07C2523/89
Abstract: A method for producing olefins using a circulating fluidized bed process, includes: supplying a propane-containing hydrocarbon mixture and a dehydrogenation catalyst into a riser, which is a fast fluidization regime, to cause a dehydrogenation reaction; separating, from a propylene mixture, the catalyst which is a product of the dehydrogenation reaction; removing unseparated hydrocarbon compounds remaining in the catalyst separated in the separating; continuously regenerating the catalyst by mixing the catalyst stripped in the removing with a gas containing oxygen; circulating the catalyst regenerated in the continuously regenerating to the supplying and resupplying it into the riser; and preparing propylene by cooling, compressing, and separating the propylene mixture which is a reaction product separated in the separating.
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9.发明申请公开(公告)号：US20230127784A1
公开(公告)日：2023-04-27
申请号：US17909241
申请日：2020-12-24
Inventor： Daesung PARK , Hawon PARK , Changyeol SONG , Yong Ki PARK , Won Choon CHOI , Ung Gi HONG , Hae Bin SHIN , Miyoung LEE , Deuk Soo PARK
Abstract: The present disclosure is to provide a catalyst for olefin production which is eco-friendly and has excellent conversion rates and selectivity and a preparation method thereof, and the catalyst for olefin production according to the present disclosure is one in which cobalt and zinc are supported with alumina. Particularly, the catalyst according to the present disclosure uses an amount of platinum that is about 400 times smaller than that of the conventional catalysts, and has high conversion rates and selectivity under conditions in which continuous reaction-regeneration process is possible without an additional hydrogen reduction process.
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公开(公告)号：US20250162863A1
公开(公告)日：2025-05-22
申请号：US18729033
申请日：2023-01-16
Inventor： Woo Jae KIM , Hye Min JUNG , Ji Eun PARK , Ung Gi HONG , Hyeong Chan AHN , Tae Hyeop KIM
Abstract: A dry hydrogen production method includes drying sludge; producing a sludge mixture by mixing the dried sludge with an aqueous hydroxide solution and then drying a mixture or mixing the dried sludge with hydroxide powder; introducing the sludge mixture into a reactor; producing a reaction product by heating the sludge mixture in the reactor without supplying water or vapor; separating the reaction product into a gas effluent and a solid effluent through gas-solid separation; and producing a gas product from the gas effluent.
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