公开(公告)号：US11944958B2

公开(公告)日：2024-04-02

申请号：US17867217

申请日：2022-07-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chunjae Yoo ,  Jeong-Myeong Ha ,  Dong Jin Suh ,  Jae Wook Choi ,  Young Hyun Yoon ,  Kyeongsu Kim ,  Chang Soo Kim ,  Kwang Ho Kim ,  Thi Lien Do

IPC: B01J29/24 ,  B01J29/06 ,  B01J29/064 ,  B01J29/072 ,  B01J29/08 ,  B01J29/40 ,  B01J29/46 ,  B01J37/02

CPC classification number: B01J29/46 ,  B01J29/061 ,  B01J29/064 ,  B01J29/072 ,  B01J29/088 ,  B01J29/405 ,  B01J37/0201 ,  B01J37/0209 ,  B01J2229/18 ,  B01J2229/186

Abstract: Disclosed herein are a catalyst for hydrocracking reaction of high molecular weight components in bio-oil, a method for preparing the same and a method for bio-oil upgrading using the same. The catalyst includes a zeolite carrier; and at least one metal selected from the group consisting of nickel (Ni), ruthenium (Ru) and cerium (Ce) supported on the carrier. The catalyst promotes the hydrocracking of high molecular weight compounds contained in the bio-oil, but also inhibits the polymerization reaction of the decomposed product, thereby more effectively enhancing the hydrocracking reaction of the bio-oil.

公开(公告)号：US12011704B2

公开(公告)日：2024-06-18

申请号：US18146987

申请日：2022-12-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chunjae Yoo ,  Jeong-Myeong Ha ,  Dong Jin Suh ,  Jae Wook Choi ,  Young Hyun Yoon ,  Kyeongsu Kim ,  Chang Soo Kim ,  Kwang Ho Kim ,  Thi Lien Do ,  Jong Hyun Lee ,  Jin A Eun

IPC: B01J21/06 ,  B01J23/00 ,  B01J23/10 ,  B01J23/44 ,  B01J23/755 ,  B01J23/83 ,  B01J27/20 ,  C10G3/00

CPC classification number: B01J23/002 ,  B01J21/063 ,  B01J23/44 ,  B01J23/755 ,  B01J23/83 ,  B01J27/20

Abstract: Disclosed herein is a catalyst for an upgrading reaction of biomass pyrolysis oil, a method for preparing the same, and a method for upgrading biomass pyrolysis oil using the same. The catalyst is a composite inorganic oxide, and the composite inorganic oxide includes lanthanum, nickel, titanium, and cerium. When a metal catalyst supported on carbon is used as a catalyst for a first step reaction, by using the catalyst as a catalyst for a second step reaction, the efficiency of the upgrading reaction of bio-oil is increased and a continuous reaction is possible without clogging of a continuous reactor.

公开(公告)号：US10125344B2

公开(公告)日：2018-11-13

申请号：US15329399

申请日：2015-09-21

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Young Soon Um ,  Hong Gon Kim ,  Byoung Sung Ahn ,  Sang Deuk Lee ,  Chang Soo Kim ,  Dong Jin Suh ,  Kyung Min Lee

IPC: C12M1/00 ,  C12M1/02 ,  C12M1/34

Abstract: The apparatus includes: a pretreatment tank where biomass and a first acid solution are stirred to extract sugar components from the biomass; a hydrolysis tank where water is added to the pretreated mixture transferred from the pretreatment tank such that the concentration of the acid is reduced and the sugar components are hydrolyzed to produce an acid hydrolyzate; a first sugar-acid separation tank where the acid hydrolyzate is separated into a second acid solution and a first hydrolyzate; a second sugar-acid separation tank where the first hydrolyzate is separated into a third acid solution and a second hydrolyzate; a fermentation tank where the second hydrolyzate is fermented to produce bioenergy; and an acid solution concentration tank where a mixture of the second acid solution transferred from the first sugar-acid separation tank and the third acid solution transferred from the second sugar-acid separation tank is concentrated to a higher level for reuse.

公开(公告)号：US09238216B2

公开(公告)日：2016-01-19

申请号：US14059007

申请日：2013-10-21

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chang Soo Kim ,  Kyesang Yoo ,  Byoung Sung Ahn ,  Hyun Joo Lee ,  Jeong Myeong Ha ,  Hong Gon Kim

IPC: B01J23/44 ,  C07C17/354 ,  C07C19/08 ,  C07C21/18 ,  B01J37/03 ,  B01J21/18 ,  B01J35/00 ,  B82Y30/00 ,  B01J31/02

CPC classification number: B01J23/44 ,  B01J21/18 ,  B01J31/0284 ,  B01J35/0013 ,  B01J35/0053 ,  B01J35/006 ,  B01J37/035 ,  B82Y30/00 ,  C07C17/354 ,  C07C19/08

Abstract: Provided is a palladium on carbon (Pd/C) catalyst obtained by using an ionic liquid, a method for preparing the same, and a method for hydrogenation of hydrofluorocarbon using the same. More particularly, palladium particles are supported on carbon particles by using an ionic liquid, and the resultant Pd/C catalyst is used for hydrogenation of hydrofluorocarbon. The catalyst includes palladium particles having a smaller particle size and a more uniform shape as compared to the existing Pd/C catalysts, and thus shows high catalytic activity.

Abstract translation: 提供通过使用离子液体获得的钯/碳（Pd / C）催化剂，其制备方法和使用其的氢氟烃的氢化方法。 更具体地，钯颗粒通过使用离子液体负载在碳颗粒上，所得的Pd / C催化剂用于氢氟烃的氢化。 该催化剂包括与现有Pd / C催化剂相比具有较小粒度和更均匀形状的钯颗粒，因此显示出高催化活性。

公开(公告)号：US08969600B2

公开(公告)日：2015-03-03

申请号：US13759692

申请日：2013-02-05

Applicant: Korea Institute of Science and Technology

Inventor： Hyun Joo Lee ,  Sang Deuk Lee ,  Byoung Sung Ahn ,  Chang Soo Kim ,  Ji Sik Choi

IPC: C07D301/02

CPC classification number: C07D301/02

Abstract: Disclosed is a method for producing glycidol by decarboxylation of glycerol carbonate. In the method, an ionic liquid catalyst is added for the reaction. According to the method glycidol can be produced in high yield and selectivity. The method enables the production of glycidol in an easy, simple and environmentally friendly way.

Abstract translation: 公开了通过碳酸甘油脱羧制备缩水甘油的方法。 在该方法中，为反应添加离子液体催化剂。 根据方法，可以高产率和选择性生产缩水甘油。 该方法能够以简单，简单和环保的方式生产缩水甘油。

公开(公告)号：US11794167B2

公开(公告)日：2023-10-24

申请号：US17741885

申请日：2022-05-11

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kwang Ho Kim ,  Chang Soo Kim ,  Jeong-Myeong Ha ,  Jae Wook Choi ,  Chunjae Yoo

IPC: B01J23/10 ,  C07C51/487

CPC classification number: B01J23/10 ,  C07C51/487

Abstract: Disclosed are a method for producing lactic acid from wastes containing cellulose and/or hemicellulose and a catalyst for thermochemical conversion reaction of wastes containing cellulose and/or hemicellulose. The method includes a step of adding a metal catalyst to wastes containing cellulose and/or hemicellulose and performing thermochemical conversion reaction. The method provides an effect of producing lactic acid from discarded wastes, e.g., waste paper such as waste corrugated paperboards, waste paper boxes, waste newspapers, etc.

公开(公告)号：US08894956B2

公开(公告)日：2014-11-25

申请号：US14087373

申请日：2013-11-22

Applicant: Korea Institute of Science and Technology

Inventor： Hyun Joo Lee ,  Seung Rok Lim ,  Kean Im Lee ,  Chang Soo Kim ,  Hoon Sik Kim ,  Ji Sik Choi ,  Sang Deuk Lee

IPC: C09K3/00 ,  B01D53/50 ,  B01D53/14

CPC classification number: B01D53/1493 ,  B01D53/1481 ,  B01D2252/20431 ,  B01D2252/30 ,  B01D2257/302 ,  Y02A50/2349

Abstract: Disclosed is an sorbent for removing sulfur dioxide (SO2) contained in combustion flue gases or in the atmosphere by using a diamine-based ionic liquid or a diamine compound supported by a polymer resin. To be specific, the present invention relates to a method of using a tertiary diamine compound immobilized on a polymer surface as a SO2 sorbent and also relates to a novel sorbent for absorbing or adsorbing a sulfur dioxide hydrate (SO2.H2O) formed by a bond between SO2 and water.

Abstract translation: 公开了一种用于通过使用由聚合物树脂负载的二胺基离子液体或二胺化合物来除去燃烧烟道气或大气中所含的二氧化硫（SO 2）的吸附剂。 具体而言，本发明涉及使用固定在聚合物表面上的叔二胺化合物作为SO 2吸附剂的方法，还涉及用于吸收或吸附由键形成的二氧化硫水合物（SO 2·H 2 O）的新型吸附剂 在二氧化硫和水之间。