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1.发明申请公开(公告)号：US20200306732A1
公开(公告)日：2020-10-01
申请号：US16791392
申请日：2020-02-14
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Kee Young KOO , Un-ho JUNG , Young-eun KIM , Hyo Been IM , Dong Hyun CHUN , Min Hye YOUN , Heon-do JEONG , Ji-chan PARK , Geun Bae RHIM , Dong-wook LEE
Abstract: The present invention relates to a catalyst for dehydration of a primary alcohol, a method of preparing the same, and a method of producing an alpha-olefin using the same. The catalyst for dehydration of a primary alcohol according to the present invention has an excellent catalyst stability while having an excellent activity with respect to dehydration, and a high turnover frequency, such that a linear alpha-olefin with high purity may be produced with a high selectivity even in a case where a relatively small amount of a cocatalyst is added as compared with a homogeneous catalyst system.
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Patent Agency Ranking
公开(公告)号：US20180127886A1
公开(公告)日：2018-05-10
申请号：US15804569
申请日：2017-11-06
Applicant: Korea Institute of Energy Research
Inventor： Ki Tae PARK , Soon Kwan JEONG , Seong Pil KANG , Hak Joo KIM , Min Hye YOUN
CPC classification number: C25B3/04 , B01D19/0036 , B01D19/0068 , B01D19/0084 , C01B32/50 , C01B32/60 , C07C45/41 , C07C53/02 , C25B1/04 , C25B9/10 , C25B15/02 , Y02E60/366
Abstract: The present invention relates to an apparatus and method of preparing carbonate and/or formate from carbon dioxide.The apparatus of preparing carbonate and/or formate from carbon dioxide (CO2), comprising: an electrolysis reactor comprising (i) an anode which contains an aqueous solution of a Group I metal salt as an electrolytic solution, (ii) an ion-exchange membrane through which metal cations derived from the Group I metal salt and water flow from an anode to a cathode, (iii) a cathode, and (iv) a gas diffusion layer which supplies a carbon dioxide-containing gas to the cathode; a power supply unit of applying a voltage between the anode and the cathode; a first gas-liquid separator of recovering the electrolytic solution from the products formed in the anode; a second gas-liquid separator of recovering carbonate and/or formate from the products formed in the cathode; a pH meter of measuring the pH of the electrolytic solution recovered from the first gas-liquid separator; a first reactant supply unit of supplying (a) the electrolytic solution recovered from the first gas-liquid separator and (b) the aqueous solution of the Group I metal salt with which the recovered electrolytic solution is replenished according to the pH of the electrolytic solution, to the anode; and a second reactant supply unit of supplying carbon dioxide or a mixer comprising carbon dioxide and water vapor to the cathode; wherein, when a voltage is applied between the anode and the cathode, in the anode, water undergoes electrolysis to generate hydrogen ions, oxygen, and electrons, and metal cations in the Group I metal salt are substituted with the hydrogen ions, while the generated metal cations move to the cathode through the ion-exchange membrane and the electrons move to the cathode through an external electric line; and in the cathode, carbon dioxide, water, metal cations, and electrons are reacted and produce carbonate and/or formate.
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公开(公告)号：US20190270047A1
公开(公告)日：2019-09-05
申请号：US16348972
申请日：2017-11-08
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Soon-kwan JEONG , Min Hye YOUN , Ki-tae PARK , Seong-pil KANG , Won Hee LEE , Hak-joo KIM , Young-eun KIM , Ji Min KANG , Arti MURNANDARI
Abstract: The present invention relates to a method for continuous removal of carbon dioxide, the method comprising the steps of: a) preparing an aqueous solution containing an amine-based compound and an acidic calcium compound; b) bringing a gas containing carbon dioxide to be treated into contact with the aqueous solution to prepare a calcium carbonate precipitate; and c) recovering the calcium carbonate and then adding a basic calcium compound to the residual aqueous solution, wherein after step c), step b) and step c) are repeatedly performed. The removal of carbon dioxide by the method of the present invention has advantages of requiring low energy and being capable of mineralizing and removing carbon dioxide at a fast rate without a separate time for induction.
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4.发明申请公开(公告)号：US20180202056A1
公开(公告)日：2018-07-19
申请号：US15744327
申请日：2016-07-14
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Ki Tae PARK , Soon Kwan JEONG , Hak Joo KIM , Seong Pil KANG , Min Hye YOUN
CPC classification number: C25B3/04 , B01D3/06 , B01D53/1487 , B01D53/326 , B01D53/965 , C01B32/40 , C01B32/50 , C07C51/15 , C07C53/06 , C07C53/10 , C22C13/00 , C25B11/04 , C25B15/02
Abstract: The present invention relates to a method and an apparatus of preparing a reduction product of carbon dioxide by electrochemically reducing carbon dioxide.The present invention can prepare, in an energy-efficient manner, a reduction product of high-concentration carbon dioxide with high Faraday efficiency as in a liquid reduction reaction by producing the reduction product of carbon dioxide by supplying water or an electrolytic solution to an anode region; supplying humidified carbon dioxide gas having a second temperature higher than a first temperature to a cathode region within an electrochemical cell having the first temperature so as to supply the carbon dioxide gas which has been humidified to be in a condition where the relative humidity is greater than 100%, while applying a voltage between the anode region and the cathode region so as to generate hydrogen ions (H+) in the anode region; and transporting the hydrogen ions to the cathode region through the electrolyte membrane, thereby electrochemically reducing the carbon dioxide gas.
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公开(公告)号：US20240201214A1
公开(公告)日：2024-06-20
申请号：US18578551
申请日：2021-08-06
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Dong Hyun CHUN , Min Hye YOUN , Geun Bae RHIM
Abstract: An automated liquid sample device is disclosed. The automated liquid sampling device of the present invention comprises: a first pipe which is connected to a (1-2)th inlet-side flow channel of a first three-way valve and through which a gas is exhausted to the outside; a second three-way valve which forms a (2-1)th inlet, a (2-2)th inlet, and a (2-3)th inlet, has a (2-1th inlet-side flow channel connected to a (1-3)th inlet-side flow channel of the first three-way valve, and has a (2-2)th inlet-side flow channel connected to a second trap, a third three-way valve which forms a (3-1)th inlet, a (3-2)th inlet, and a (3-3)th inlet; a second pipe which connects a (3-1)th inlet-side flow channel to a (2-3)th inlet-side flow channel; a third pipe which connects a (3-2)th inlet-side flow channel to the (1-2)th inlet-side flow channel of the first three-way valve; a fourth pipe which connects a (3-3)th inlet-side flow channel to the first pipe; and a controller which controls the first valve, the first three-way valve, the second three-way valve, and the third three-way valve.
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公开(公告)号：US20220032272A1
公开(公告)日：2022-02-03
申请号：US17386555
申请日：2021-07-28
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Kee Young KOO , Un-ho JUNG , Young-eun KIM , HYO BEEN IM , DONG-HYUN CHUN , Min Hye YOUN , Heon-do JEONG , GEUN BAE RHIM , Ji-chan PARK , Dong-wook LEE
Abstract: Provided are a catalyst for dehydration reaction of a primary alcohol, a method for preparing the same, and a method for preparing alpha-olefins using the same. According to the present invention, there is provided a catalyst for dehydration reaction of primary alcohols capable of adjusting the strength and distribution of Lewis acid sites (LASs) on a surface of an alumina catalyst to realize high selectivity to alpha-olefins as well as a high conversion rate in the dehydration reaction of primary alcohols. Therefore, high-purity alpha-olefins having a low isomeric yield fraction as well as a high conversion rate can be produced from the primary alcohols.
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