公开(公告)号：US20240100469A1

公开(公告)日：2024-03-28

申请号：US18013538

申请日：2022-04-11

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Hyung-chul YOON ,  Sang-sup HAN ,  Hee-tae BEUM ,  Kanghee CHO ,  Sun Hyung KIM ,  Hyung Kuk JU

IPC: B01D53/047 ,  C01B3/04 ,  C01B3/56

CPC classification number: B01D53/0476 ,  C01B3/047 ,  C01B3/56 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/1122 ,  B01D2253/25 ,  B01D2256/16 ,  B01D2257/406 ,  B01D2257/80 ,  B01D2259/40013 ,  B01D2259/40028 ,  B01D2259/40035 ,  B01D2259/40043 ,  B01D2259/40071 ,  B01D2259/4062 ,  B01D2259/4146 ,  C01B2203/0266 ,  C01B2203/043 ,  C01B2203/0495

Abstract: The present disclosure relates to a pressure swing adsorption apparatus for hydrogen purification from decomposed ammonia gas and a hydrogen purification method using the same, and more particularly, the pressure swing adsorption apparatus of the present disclosure includes a plurality of adsorption towers including a pretreatment unit and a hydrogen purification unit wherein the adsorption towers of the pretreatment unit and the hydrogen purification unit are packed with different adsorbents, thereby achieving high purity hydrogen purification from mixed hydrogen gas produced after ammonia decomposition, making it easy to replace the adsorbent for ammonia removal, minimizing the likelihood that the lifetime of the adsorbent in the hydrogen purification unit is drastically reduced by a very small amount of ammonia, and actively responding to a large change in ammonia concentration in the raw material.
Additionally, a hydrogen purification method using the pressure swing adsorption apparatus of the present disclosure physically adsorbs and removes impurities such as moisture (H2O), ammonia (NH3) and nitrogen (N2) included in mixed hydrogen gas produced after ammonia decomposition below extremely small amounts, thereby achieving high purity hydrogen purification with improved selective adsorption of moisture, ammonia and nitrogen and maximized hydrogen recovery rate and productivity. In addition, since the temperature swing adsorption process is not introduced, there is no need for a heat source for regeneration, thereby reducing the driving cost.

公开(公告)号：US20180135895A1

公开(公告)日：2018-05-17

申请号：US15654742

申请日：2017-07-20

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Kanghee CHO ,  Jong-Nam Kim ,  Hee Tae Beum ,  Sang Kyum Kim ,  Eunkyung Lee ,  Hyun-uk Kim ,  Sang-Sup Han ,  Hyung Chul Yoon ,  Dong-Woo Cho

IPC: F25B17/08 ,  C01F7/06

CPC classification number: F25B17/08 ,  C01F7/0673 ,  F25B17/083 ,  Y02A30/277 ,  Y02A30/278 ,  Y02B30/62 ,  Y02B30/64

Abstract: Disclosed are an adsorption type cooling apparatus using nanoporous aluminophosphate as a water vapor adsorbent, and an operation method thereof. Specifically, the adsorption type cooling apparatus uses nanoporous aluminophosphate exhibiting a high dynamic water vapor adsorption capacity as a water vapor adsorbent. The adsorption type cooling apparatus includes at least two adsorption towers containing a water vapor adsorbent, a condenser alternately connected to the adsorption towers, and an evaporator alternately connected to the adsorption towers, wherein the water vapor adsorbent is nanoporous aluminophosphate containing aluminum, phosphorous, and oxygen.

公开(公告)号：US20250001352A1

公开(公告)日：2025-01-02

申请号：US18263270

申请日：2023-05-17

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Sang-sup HAN ,  Hyung-chul YOON ,  Hee-tae BEUM ,  Kanghee CHO ,  Sun Hyung KIM ,  Hyung Kuk JU ,  Jae Hyung KIM ,  Kyungho LEE ,  Jong-ho PARK ,  Jong-nam KIM

IPC: B01D53/047 ,  B01D53/04 ,  B01D53/26 ,  C01B3/04 ,  C01B3/56

Abstract: The present disclosure relates to a pressure swing adsorption apparatus for high purity hydrogen purification from ammonia decomposition and a hydrogen purification method using the same, and more specifically, the pressure swing adsorption apparatus includes a plurality of adsorption towers including a guard bed unit and a hydrogen purification unit, in which each adsorption tower is packed with different adsorbents, to purify high purity hydrogen from mixed hydrogen gas produced after ammonia decomposition, make it easy to replace the adsorbent for ammonia removal, minimize the likelihood that the lifetime of the adsorbent in the hydrogen purification unit is drastically reduced by trace amounts of ammonia, efficiently recover hydrogen of the guard bed unit, thereby maximizing the hydrogen recovery rate compared to a conventional pressure swing adsorption process including a pretreatment unit and a hydrogen purification unit, and respond to a large change in ammonia concentration in the raw material.

公开(公告)号：US20170342329A1

公开(公告)日：2017-11-30

申请号：US15606181

申请日：2017-05-26

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Dong-Woo CHO ,  Jong-Nam KIM ,  Su Jin JEONG ,  Hee Tae BEUM ,  Taesung JUNG ,  Hyung Chul YOON ,  Kanghee CHO ,  Sang-Sup HAN

IPC: C10G29/22 ,  B04B5/00 ,  C07B63/00 ,  C07C49/185 ,  C07F3/04 ,  G01N21/75

CPC classification number: C10G29/22 ,  B04B5/00 ,  C07B63/00 ,  C07B63/02 ,  C07C49/185 ,  C07F3/04 ,  C10G21/16 ,  C10G2300/201 ,  G01N21/75

Abstract: Disclosed is a method of removing calcium from a hydrocarbon fraction using an extraction agent including 2-oxopropanal or derivatives thereof, the method including (S1) adding a hydrocarbon fraction with an extraction agent including 2-oxopropanal or derivatives thereof to give a mixture, (S2) converting an oil-soluble calcium compound into a water-soluble calcium compound by reacting the hydrocarbon fraction with the 2-oxopropanal or derivatives thereof, and (S3) removing the water-soluble calcium compound.