公开(公告)号：US20240055641A1

公开(公告)日：2024-02-15

申请号：US18260842

申请日：2021-08-12

Applicant: CHIYODA CORPORATION ,  KYOTO UNIVERSITY

Inventor： Yoshimi OKADA ,  Takuo YASUNISHI ,  Kenichi IMAGAWA ,  Koichi EGUCHI ,  Toshiaki MATSUI ,  Hiroki MUROYAMA ,  Takashi OZEKI

IPC: H01M8/1246

CPC classification number: H01M8/1246 ,  H01M2008/1293

Abstract: [Task] Provided is a proton conductor and a manufacturing method thereof that are suitable for the use in a temperature range between 200° C. and 600° C.
[Solution] A proton conductor has electric conductivity of 0.01 S/cm or more at 300° C., wherein a portion of lithium ions of Li14−2xZn1+x(GeO4)4 is substituted with protons. The x is a number equal to or more than 0. 40% to 70% inclusive of movable lithium ions contained in Li14−2xZn1+x(GeO4)4 may be substituted with the protons. 50% to 60% inclusive of movable lithium ions contained in Li14−2xZn1+x as (GeO4)4 may be substituted with the protons. A manufacturing method of a proton conductor comprises a process of substituting a portion of lithium ions with protons by immersing Li14−2xZn1+x(GeO4)4 in a non-aqueous organic solvent containing acid.

公开(公告)号：US20230356165A1

公开(公告)日：2023-11-09

申请号：US18026720

申请日：2021-04-16

Applicant: Chiyoda Corporation

Inventor： Yoshimi OKADA ,  Kenichi IMAGAWA ,  Tomoyuki MIKURIYA ,  Hironori KAWAI ,  Yusuke NAKAJIMA

IPC: B01J8/06 ,  B01J8/00 ,  C01B3/26 ,  B01J35/10 ,  B01J35/00 ,  B01J35/02

CPC classification number: B01J8/067 ,  B01J8/001 ,  C01B3/26 ,  B01J35/1066 ,  B01J35/1019 ,  B01J35/1042 ,  B01J35/0066 ,  B01J35/023 ,  C01B2203/0277 ,  C01B2203/0425 ,  C01B2203/1252 ,  C01B2203/1017 ,  C01B2203/107 ,  C01B2203/0833 ,  C01B2203/1082 ,  C01B2203/0827

Abstract: [Task] To avoid use of direct fire and suppress CO2 emission when heating a heat medium used to input heat to dehydrogenation reaction of hydrogenated aromatics.
[Solution] A hydrogen station 1 includes: a dehydrogenation reactor 23 that produces hydrogen by dehydrogenation reaction of a hydrogenated aromatic in presence of a dehydrogenation catalyst; a heat supply device 26 that supplies heat to the dehydrogenation reactor via a heat medium heated by using fuel; and a PSA device 33 that purifies a reaction product gas in the dehydrogenation reactor by using an adsorbent according to a pressure swing adsorption method, wherein the PSA device is supplied with a purge gas containing hydrogen used in regeneration of the adsorbent, the heat supply device includes a storage tank 27 storing the heat medium and a catalytic combustion tube 28 disposed in the storage tank to catalytically combust the fuel in presence of a combustion catalyst, and the catalytic combustion tube is supplied with the purge gas discharged from the PSA device as the fuel together with air.

公开(公告)号：US20170015553A1

公开(公告)日：2017-01-19

申请号：US15124725

申请日：2015-03-06

Applicant: CHIYODA CORPORATION

Inventor： Tomoyuki MIKURIYA ,  Kenichi IMAGAWA ,  Hironori KAWAI ,  Yusuke NAKAJIMA ,  Takenori KANDA

IPC: C01B3/26 ,  B01J7/00

CPC classification number: C01B3/26 ,  B01J7/00 ,  B01J8/0492 ,  C01B3/22 ,  C01B2203/0277 ,  C01B2203/0833 ,  C01B2203/1047 ,  C01B2203/1082 ,  C01B2203/1211 ,  C01B2203/1252 ,  C01B2203/142 ,  C01B2203/16 ,  C01B2203/1623

Abstract: To allow hydrogen to be supplied to a dehydrogenation reaction unit for dehydrogenating an organic hydride by using a highly simple structure so that the activity of the dehydrogenation catalyst of the dehydrogenation reaction unit is prevented from being rapidly reduced. The hydrogen production system (1) comprises a first dehydrogenation reaction unit (3) for producing hydrogen by a dehydrogenation reaction of an organic hydride in presence of a first catalyst, and a second dehydrogenation reaction unit (4) for receiving a product of the first dehydrogenation reaction unit, and producing hydrogen by a dehydrogenation reaction of the organic hydride remaining in the product in presence of a second catalyst, wherein an amount of the first catalyst used in the first dehydrogenation reaction unit is equal to or less than an amount of the second catalyst used in the second dehydrogenation reaction unit, and an amount of hydrogen produced in the first dehydrogenation reaction unit is less than an amount of hydrogen produced in the second dehydrogenation reaction unit.

Abstract translation: 为了通过使用高度简单的结构使氢气供应到脱氢反应单元以使有机氢化物脱氢，从而防止脱氢反应单元的脱氢催化剂的活性迅速降低。 氢生产系统（1）包括通过有机氢化物在第一催化剂存在下的脱氢反应产生氢的第一脱氢反应单元（3）和用于接收第一催化剂的产物的第二脱氢反应单元（4） 脱氢反应单元，通过在第二催化剂存在下残留在产物中的有机氢化物的脱氢反应生成氢，其中第一脱氢反应单元中使用的第一催化剂的量等于或小于 在第二脱氢反应单元中使用的第二催化剂和在第一脱氢反应单元中产生的氢的量小于在第二脱氢反应单元中产生的氢的量。

公开(公告)号：US20230338927A1

公开(公告)日：2023-10-26

申请号：US18024924

申请日：2021-04-16

Applicant: Chiyoda Corporation

Inventor： Yoshimi OKADA ,  Kenichi IMAGAWA ,  Shinichi NAKATA

IPC: B01J23/42 ,  B01J23/04 ,  B01J27/02 ,  B01J35/10 ,  B01J35/00 ,  B01J37/03 ,  B01J37/02 ,  B01J37/08 ,  B01J37/18 ,  C07C5/32

CPC classification number: B01J23/42 ,  B01J23/04 ,  B01J27/02 ,  B01J35/1019 ,  B01J35/1042 ,  B01J35/1061 ,  B01J35/0066 ,  B01J35/0013 ,  B01J35/006 ,  B01J37/031 ,  B01J37/0236 ,  B01J37/088 ,  B01J37/0205 ,  B01J37/024 ,  B01J37/18 ,  C07C5/325 ,  C07C2601/14 ,  C07C2602/28 ,  C07C2523/42

Abstract: To provide a platinum-loaded alumina catalyst with an improved catalyst life.
A platinum-loaded alumina catalyst includes an alumina carrier, and platinum loaded on the alumina carrier, wherein the alumina carrier includes a γ-alumina carrier having a surface area of 200 m2/g or more, a pore volume of 0.50 m2/g or more, an average pore diameter in a range of 60 to 150 Å, with pores having a pore diameter in a range of ±30 Å from the average pore diameter occupying 60% or more of a total pore volume, platinum particles are loaded on γ-alumina carrier in a range of 0.1 to 1.5% by weight calculated as elemental platinum (Pt), and 70% or more of the platinum particles have a size of 8 to 15 Å by direct observation using a transmission electron microscope.

公开(公告)号：US20230141512A1

公开(公告)日：2023-05-11

申请号：US17918591

申请日：2020-04-23

Applicant: Chiyoda Corporation

Inventor： Yoshimi OKADA ,  Kenichi IMAGAWA ,  Masashi SAITO ,  Kenta FUKUDOME ,  Haruto KOBAYASHI

IPC: B01J23/58 ,  B01J27/02 ,  B01J21/04 ,  B01J35/10 ,  B01J35/00 ,  B01J37/02 ,  B01J37/18 ,  C07C5/367

CPC classification number: B01J23/58 ,  B01J27/02 ,  B01J21/04 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1061 ,  B01J35/008 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/18 ,  C07C5/367 ,  C07C2523/58 ,  C07C2521/04

Abstract: To provide a uniform-type platinum-loaded alumina catalyst demonstrating excellent performance in terms of catalyst life, a uniform-type platinum-loaded alumina catalyst includes: an alumina carrier; sulfur or a sulfur compound dispersed over an entire cross section of the alumina carrier; platinum dispersed and loaded over the entire cross section of the alumina carrier; one or more alkali metals selected from the group consisting of sodium, potassium, and calcium. Preferably, the content of platinum is 0.05 to 5.0 wt % calculated as elemental platinum. The content of the sulfur or the sulfur compound preferably is 0.15 to 5.0 wt % calculated as elemental sulfur. The content of the alkali metal preferably is 0.1 to 5.0 wt % calculated as elemental alkali metal.

公开(公告)号：US20230343978A1

公开(公告)日：2023-10-26

申请号：US18245827

申请日：2021-08-12

Applicant: Chiyoda Corporation

Inventor： Yoshimi OKADA ,  Takuo YASUNISHI ,  Kenichi IMAGAWA ,  Daisuke KUROSAKI

IPC: H01M8/1246 ,  H01M8/1213 ,  H01M8/0612 ,  H01M4/92 ,  H01M8/1231 ,  H01M8/0656 ,  C25B1/042 ,  C25B1/02 ,  C25B9/05 ,  C25B13/07

CPC classification number: H01M8/1246 ,  H01M8/1213 ,  H01M8/0612 ,  H01M4/925 ,  H01M8/1231 ,  H01M8/0656 ,  C25B1/042 ,  C25B1/02 ,  C25B9/05 ,  C25B13/07 ,  H01M2300/0074 ,  H01M2008/1293

Abstract: Provided is an electrochemical cell, a power generation method using the electrochemical cell, and a manufacturing method of a hydrogen gas using the electrochemical cell that are suitable for the use in a temperature range between 200° C. and 600° C.
A fuel cell 1 (electrochemical cell) includes a proton conductor 5 represented by (Li, H)14−2xZn1+x(GeO4)4 where a portion of lithium ions of Li14−2xZn1+x(GeO4)4 where x is a number equal to or more than 0 is substituted with protons, the proton conductor having electric conductivity of 0.01 S/cm or more at 300° C., an anode 6 provided on one side of the proton conductor, a cathode 7 provided on another side of the proton conductor, a first separator 9 provided on an anode side of the proton conductor to define an anode chamber 8, and a second separator 12 provided on a cathode side of the proton conductor to define a cathode chamber 11.

公开(公告)号：US20230148027A1

公开(公告)日：2023-05-11

申请号：US17918661

申请日：2020-04-23

Applicant: Chiyoda Corporation

Inventor： Yoshimi OKADA ,  Kenichi IMAGAWA ,  Masashi SAITO ,  Kenta FUKUDOME ,  Haruto KOBAYASHI

IPC: B01J23/652 ,  B01J21/04 ,  B01J35/00 ,  B01J37/18 ,  C07C5/367

CPC classification number: B01J23/6525 ,  B01J21/04 ,  B01J35/008 ,  B01J37/18 ,  C07C5/367

Abstract: To provide an egg shell-type platinum-loaded alumina catalyst demonstrating excellent performance in terms of catalyst life, an egg shell-type platinum-loaded alumina catalyst includes: an alumina carrier; platinum dispersed and loaded on an outer shell of the alumina carrier; and one or more second components selected from the group consisting of vanadium, chromium, molybdenum, and phosphorus. Preferably, the content of platinum is 0.05 to 5.0 wt % calculated as elemental platinum. The content of each second component preferably is 0.1 to 5.0 wt % calculated as each element. The alumina carrier has a surface area of 150 m2/g or more, a pore volume of 0.40 cm3/g or more, and an average pore diameter of 40 to 300 Å, with pores having a pore diameter in a range of ±30 Å from the average pore diameter occupying 60% or more of a total pore volume.

公开(公告)号：US20170369793A1

公开(公告)日：2017-12-28

申请号：US15700089

申请日：2017-09-09

Applicant: CHIYODA CORPORATION

Inventor： Kenichi IMAGAWA ,  Haruto KOBAYASHI ,  Akihiro MUTO ,  Shinichi INOUE

IPC: C10G45/48 ,  B01J23/755 ,  C01G53/04 ,  C07C5/10 ,  G01N23/20 ,  C01F7/02 ,  C01G23/04

Abstract: A hydrogenation catalyst with a small amount of supported metal that is excellent in stability and inhibition of side reactions is provided. The catalyst hydrogenates an aromatic hydrocarbon compound into an alicyclic hydrocarbon compound, and a Group X metal represented by nickel is supported in a composite support including at least alumina and titania. The composite support preferably includes at least an alumina substrate coated with titania. It is also preferable that the Group X metal is prereduced by hydrogen. In the case that the Group X metal is nickel, the nickel content is preferably 5-35 wt % as nickel oxide in the catalyst. The substrate includes, for example, a porous structure formed by a plurality of needle-shaped or column-shaped intertwined three-dimensionally.