公开(公告)号：US10113126B2

公开(公告)日：2018-10-30

申请号：US15292214

申请日：2016-10-13

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Soo Jurng ,  Hyoun Duk Jung ,  Min Su Kim ,  Eun Seuk Park ,  Young Haeng Lee

IPC: C10L3/10 ,  B01D53/04 ,  B01J20/26 ,  B01J20/30 ,  B01J20/32

Abstract: Provided are a reusable polymeric material for removing siloxane compounds in biogas, a method for removing siloxane using the same, and an apparatus therefor, and more particularly, a polyacrylate-based polymer absorbent for removing siloxane compounds in biogas and a method for removing siloxane compounds in biogas. The method for removing siloxane compounds in biogas includes (a) providing the biogas, and b) absorbing the siloxane compounds in a polymer absorbent by passing the biogas through the polymer absorbent according to any one of claims 1 to 5.

公开(公告)号：US09844767B2

公开(公告)日：2017-12-19

申请号：US15227001

申请日：2016-08-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jongsoo Jurng ,  Min Su Kim ,  Eun Seuk Park ,  Hyoun Duk Jung ,  Jin Young Kim

IPC: B01J23/22 ,  B01J23/42 ,  B01J23/44 ,  B01J23/06 ,  B01J23/34 ,  B01J35/06 ,  B01J23/28 ,  B01J35/04 ,  B01J37/02 ,  B01D53/86

CPC classification number: B01D53/8675 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2257/106 ,  B01D2258/06 ,  B01J21/18 ,  B01J23/22 ,  B01J23/34 ,  B01J35/04 ,  B01J35/1019 ,  B01J37/0045 ,  B01J37/0215 ,  B01J37/0219 ,  B01J37/0232 ,  B01J37/0236

Abstract: Disclosed is a catalyst filter, which includes a catalyst support and a nano metallic catalyst sprayed to a surface of the catalyst support. The catalyst filter uses catalyst slurry prepared by using a particulate catalyst, in which a small amount of nano metallic catalyst exhibiting a catalyst performance is sprayed to a surface of the catalyst support, different from an existing patent technique in which catalyst particles are formed and prepared as a support to consume a large amount of catalyst. Therefore, the specific surface area of the catalyst filter is not smaller than the specific surface area of the nano catalyst particles, and thus the catalyst filter may effectively remove and decompose ultra-low concentration gas-state contaminants in an indoor air.

公开(公告)号：US10245553B2

公开(公告)日：2019-04-02

申请号：US15224922

申请日：2016-08-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jongsoo Jurng ,  Min Su Kim ,  Eun Seuk Park ,  Hyoun Duk Jung ,  Jin Young Kim

IPC: A61L9/00 ,  B01D53/02 ,  B03C3/00 ,  B01D53/86 ,  B01D53/04

Abstract: Disclosed is an apparatus for decomposing low-concentration volatile organic compounds, which includes: an adsorption unit configured to adsorb a volatile organic compound; a heated air supply unit configured to supply a heated air to the adsorption unit; an oxidation decomposing catalyst unit configured to decompose a volatile organic compound detached from the adsorption unit; and an ozone supply unit configured to supply an ozone to the oxidation decomposing catalyst unit. The apparatus may maximize an exchange cycle semi-permanently by adsorbing low-concentration VOC under a high-flow condition and then detaching VOC within a short time and also by recycling an adsorption filter. In addition, the apparatus may effectively decompose VOC substances detached by a low flow into carbon dioxide and water under a condition with most excellent oxidation decomposition efficiency by using an oxidation decomposing catalyst filter.

公开(公告)号：US09101908B2

公开(公告)日：2015-08-11

申请号：US13686232

申请日：2012-11-27

Applicant: Korea Institute of Science and Technology

Inventor： Jong Soo Jurng ,  Sung Min Chin ,  Eun Seuk Park

IPC: B01J23/22 ,  B01J37/02 ,  B01D53/94 ,  B01J35/00 ,  B01J35/10

CPC classification number: B01J23/22 ,  B01D53/9409 ,  B01D53/9418 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/9207 ,  B01J35/002 ,  B01J35/1019 ,  B01J35/1038 ,  B01J37/0201 ,  B01J37/0211 ,  B01J37/0213 ,  B01J37/0238

Abstract: Provided is a method for preparing a vanadia-titania catalyst, comprising: vaporizing a titanium precursor; conveying the vaporized titanium precursor to a reaction unit together with an oxygen supplying source; reacting the vaporized titanium precursor conveyed to the reaction unit with the oxygen supplying source to produce titania particles; condensing the titania particles, collecting and recovering them; mixing the recovered titania particles with a vanadium precursor solution; drying the mixture of the titania particles with the vanadium precursor solution; and calcining the dried mixture under oxygen atmosphere or air. Provided also is a vanadia-titania catalyst obtained by the method. The vanadia-titania catalyst has a large specific surface area, uniform and fine nano-scaled size, and high dispersibility, thereby providing excellent nitrogen oxide removal efficiency, particularly in a low temperature range of 200° C.-250° C.

Abstract translation: 提供了一种制备氧化钒 - 二氧化钛催化剂的方法，包括：蒸发钛前体; 将蒸发的钛前体与氧供应源一起输送到反应单元; 将输送到反应单元的蒸发的钛前体与供氧源反应以产生二氧化钛颗粒; 冷凝二氧化钛颗粒，收集和回收它们; 将回收的二氧化钛颗粒与钒前体溶液混合; 用钒前体溶液干燥二氧化钛颗粒的混合物; 并在氧气氛或空气下煅烧干燥的混合物。 还提供了通过该方法获得的氧化钒 - 二氧化钛催化剂。 氧化钒 - 二氧化钛催化剂具有大的比表面积，均匀和细小的纳米级尺寸和高分散性，从而提供优异的氮氧化物去除效率，特别是在200℃-250℃的低温范围内。