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公开(公告)号：US10047310B2
公开(公告)日：2018-08-14
申请号：US15462004
申请日：2017-03-17
Inventor： Jeong Hoon Kim
Abstract: The present invention provides a method for separating high purity methane gas from biogas, which comprises the steps of: compressing and cooling biogas (step 1); and separating carbon dioxide by introducing the biogas compressed and cooled in step 1 into a four-stage polymer separation membrane system in which the residue stream of the first polymer separation membrane is connected to the second polymer separation membrane, the residue stream of the second polymer separation membrane is connected to the third polymer separation membrane, and the permeate stream of the second polymer separation membrane is connected to the fourth polymer separation membrane (step 2).
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公开(公告)号：US11851559B2
公开(公告)日：2023-12-26
申请号：US16689651
申请日：2019-11-20
Inventor： Jeong Hoon Kim , Bong Jun Chang , Simon MoonGeun Jung , Su Young Moon , Chae Young Park , Hoon moh Seong
CPC classification number: C08L33/24 , B01D71/64 , C08F22/40 , B01D2256/245 , B01D2257/104 , B01D2257/108 , B01D2257/504
Abstract: The present invention relates to a BCDA-based semi-alicyclic homo- or co-polyimide membrane material for gas separation and a preparation method thereof. The polyimide material prepared according to the present invention has high solubility in casting solvents, particularly in polar organic solvents, by interrupting asymmetry in the polyimide chain structure and formation of polyimide complexes compared with aromatic polyimides, and has higher heat resistance than the conventional aromatic polyimides and aliphatic polyimides, so that it is useful for the process of a high-selective permeable composite membrane or a asymmetric hollow fiber membrane used for commercial purposes, suggesting that it can be effectively used as a membrane for gas separation in various fields. In addition, the polyimide material membrane for gas separation of the present invention is useful because it has superior gas separation properties to the conventional commercialized aromatic polyimides or semi-alicyclic polyimides.
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公开(公告)号：US10561991B2
公开(公告)日：2020-02-18
申请号：US15976437
申请日：2018-05-10
Inventor： Jeong Hoon Kim , Bong Jun Chang , Su Young Moon
IPC: B01D69/12 , B01D67/00 , B01D69/02 , B01D69/10 , B01D71/82 , B01D71/68 , B01D71/26 , B01D71/30 , B01D71/76
Abstract: The present invention provides a anion-exchange composite membrane comprising a copolymer containing a vinylbenzyl trialkylammonium salt repeating unit, a styrene repeating unit and a divinylbenzene derived repeating unit; an olefin additive; a plasticizer; and a polyvinyl halide polymer. The anion-exchange composite membrane comprising a copolymer containing a vinylbenzyl trialkylammonium salt repeating unit, a styrene repeating unit and a divinylbenzene derived repeating unit; an olefin additive; a plasticizer; and polyvinylidene fluoride of the present invention not only displays low electrical resistance, excellent ion exchange capability, excellent ionic conductivity, excellent mechanical properties, excellent chemical properties, and processability, but also is easy to regulate its ion exchange capacity and ionic conductivity. Also, the composite membrane of the invention is easier to produce and cheaper to manufacture than the conventional anion-exchange composite membrane.
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4.发明申请公开(公告)号：US20180326364A1
公开(公告)日：2018-11-15
申请号：US15976437
申请日：2018-05-10
Inventor： Jeong Hoon Kim , Bong Jun CHANG , Su Young MOON
CPC classification number: B01D69/125 , B01D67/0006 , B01D67/0093 , B01D69/02 , B01D69/10 , B01D71/26 , B01D71/30 , B01D71/68 , B01D71/76 , B01D71/82 , B01D2323/30 , B01D2323/40 , B01D2323/46 , B01D2325/16 , B01D2325/42
Abstract: The present invention provides an anion-exchange composite membrane comprising a copolymer containing a vinylbenzyl trialkylammonium salt repeating unit, a styrene repeating unit and a divinylbenzene derived repeating unit; an olefin additive; a plasticizer; and a polyvinyl halide polymer.The anion-exchange composite membrane comprising a copolymer containing a vinylbenzyl trialkylammonium salt repeating unit, a styrene repeating unit and a divinylbenzene derived repeating unit; an olefin additive; a plasticizer; and polyvinylidene fluoride of the present invention not only displays low electrical resistance, excellent ion exchange capability, excellent ionic conductivity, excellent mechanical properties, excellent chemical properties, and processability, but also is easy to regulate its ion exchange capacity and ionic conductivity. Also, the composite membrane of the invention is easier to produce and cheaper to manufacture than the conventional anion-exchange composite membrane.
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5.发明申请公开(公告)号：US20180326363A1
公开(公告)日：2018-11-15
申请号：US15976149
申请日：2018-05-10
Inventor： Jeong Hoon Kim , Bong Jun CHANG , Su Young MOON
CPC classification number: B01D69/125 , B01D67/0006 , B01D67/0093 , B01D69/02 , B01D69/10 , B01D71/26 , B01D71/28 , B01D71/30 , B01D71/68 , B01D71/76 , B01D71/82 , B01D2323/30 , B01D2323/46 , B01D2325/14 , B01D2325/42
Abstract: The present invention provides a cation-exchange composite membrane comprising a copolymer containing a styrene repeating unit introduced with a sulfonation group, a tert-butylstyrene repeating unit and a crosslink repeating unit, an olefin additive, a plasticizer and a polyvinyl halide polymer.The cation-exchange composite membrane comprising a copolymer containing a styrene repeating unit introduced with a sulfonation group, a tert-butylstyrene repeating unit and a crosslink repeating unit, an olefin additive, a plasticizer and a polyvinyl halide polymer of the present invention not only displays low electrical resistance, excellent ion exchange capability, excellent ionic conductivity, excellent mechanical properties, excellent chemical properties, and processability, but also is easy to regulate its ion exchange ability and ionic conductivity. Also, the composite membrane of the invention is easier to produce and cheaper to manufacture than the conventional cation-exchange composite membrane.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20170283292A1
公开(公告)日：2017-10-05
申请号：US15512217
申请日：2015-07-29
Inventor： Jeong Hoon Kim
CPC classification number: C02F11/04 , B01D53/04 , B01D53/225 , B01D53/226 , B01D53/228 , B01D53/229 , B01D71/06 , B01D71/68 , B01D2257/304 , B01D2257/504 , B01D2257/80 , B01D2258/05 , C01B32/50 , C07C9/04 , Y02C10/08 , Y02C10/10 , Y02E50/343
Abstract: The present invention provides a method for separating high purity methane gas from biogas, which comprises the steps of: compressing and cooling biogas (step 1); and separating carbon dioxide by introducing the biogas compressed and cooled in step 1 into a four-stage polymer separation membrane system in which the residue stream of the first polymer separation membrane is connected to the second polymer separation membrane, the residue stream of the second polymer separation membrane is connected to the third polymer separation membrane, and the permeate stream of the second polymer separation membrane is connected to the fourth polymer separation membrane (step 2).
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7.发明申请公开(公告)号：US20170198227A1
公开(公告)日：2017-07-13
申请号：US15462004
申请日：2017-03-17
Inventor： Jeong Hoon Kim
CPC classification number: C10L3/104 , B01D53/226 , B01D53/265 , B01D53/52 , B01D53/75 , B01D71/68 , B01D2053/221 , B01D2253/102 , B01D2253/106 , B01D2253/1124 , B01D2255/20738 , B01D2256/245 , B01D2257/304 , B01D2257/406 , B01D2257/504 , B01D2257/553 , B01D2257/80 , B01D2258/05 , C10L2290/06 , C10L2290/26 , C10L2290/46 , C10L2290/548 , Y02C10/10
Abstract: The present invention provides a method for separating high purity methane gas from biogas, which comprises the steps of: compressing and cooling biogas (step 1); and separating carbon dioxide by introducing the biogas compressed and cooled in step 1 into a four-stage polymer separation membrane system in which the residue stream of the first polymer separation membrane is connected to the second polymer separation membrane, the residue stream of the second polymer separation membrane is connected to the third polymer separation membrane, and the permeate stream of the second polymer separation membrane is connected to the fourth polymer separation membrane (step 2).
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公开(公告)号：US20220062815A1
公开(公告)日：2022-03-03
申请号：US17460741
申请日：2021-08-30
Inventor： Jeong Hoon Kim , Jong Yeol Jeon , Bo Ryoung Park , Ho Cheol Kang
Abstract: Disclosed herein is a system for recovering carbon monoxide from an industrial by-product gas, the system including a supply unit for supplying an industrial by-product gas containing carbon dioxide, nitrogen, carbon monoxide, and hydrogen, a first membrane separation unit including a separation membrane capable of allowing carbon dioxide and hydrogen to permeate, and receiving the industrial by-product gas supplied from the supply unit to allow carbon dioxide and hydrogen to permeate, and a second membrane separation unit including a polymer membrane in which a transition metal is supported, and receiving a gas remaining in the first membrane separation unit to allow carbon monoxide to permeate.
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公开(公告)号：US10434463B2
公开(公告)日：2019-10-08
申请号：US15920962
申请日：2018-03-14
Inventor： Jeong Hoon Kim , Su Young Moon , Bong Jun Chang
IPC: B01D69/02 , B01D53/22 , B01D69/12 , B01D67/00 , C07C7/144 , B01D69/14 , B01D71/02 , B01D71/68 , B01D71/12 , B01D71/60
Abstract: A separation membrane for olefin separation and olefin separation method using the same are provided.
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公开(公告)号：US11684890B2
公开(公告)日：2023-06-27
申请号：US16827560
申请日：2020-03-23
Inventor： Jeong Hoon Kim , Chang In Kong , Yang No Yun , Su Young Moon , Bong Jun Chang , Bo Ryoung Park , Youn-Sang Bae , Tea-Hoon Kim
CPC classification number: B01D53/228 , B01D67/0079 , B01D67/0083 , B01D69/12 , B01D71/00 , B01D2257/7025 , B01D2325/02 , B01D2325/20
Abstract: Provided are a methane-selective composite membrane comprising: a UiO-66 type organic-inorganic composite nanoporous material, a MIL-100 type organic-inorganic composite nanoporous material, or a ZIF-8 type organic-inorganic composite nanoporous material to which a methane-selective functional group is introduced for selectively separating methane from a gas mixture containing methane/nitrogen, a use thereof, and a method of preparing the same.
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