Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Dong Jun Koh"'
Simple physical mixing of zeolite prevents sulfur deactivation of vanadia catalysts for NO x removal
Autor:
Inhak Song, Hwangho Lee, Se Won Jeon, Ismail A. M. Ibrahim, Joonwoo Kim, Youngchul Byun, Dong Jun Koh, Jeong Woo Han, Do Heui Kim
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
V-based NO x abatement systems are limited in operating at low-temperatures due to the formation of ammonium bisulfate that blocks active sites of catalysts. Here, the authors report that physically mixed zeolites trap ammonium bisulfate in their mic
Externí odkaz:
https://doaj.org/article/578138fcebfe4944b5b3fb10b8539aa5
Publikováno v:
Materials, Vol 15, Iss 18, p 6356 (2022)
We have developed a facile and sustainable method to produce a novel θ-Al2O3-supported CuCl adsorbent through impregnation methods using CuCl2 as the precursor. In an easy two-step process, θ-Al2O3 was impregnated with a known concentration of CuCl
Externí odkaz:
https://doaj.org/article/72a02aa9ec3043c3a5054f0af02077f4
Publikováno v:
Sustainability; Volume 14; Issue 12; Pages: 7276
In this study, the effects of various parameters of the filter bag cleaning system, such as the blow tube size (20A, 40A, 50A), the nozzle diameter (5, 10, 15, 20, 25, 30 mm), the initial tank pressure (0.3, 0.4, 0.5, 0.6, 0.7 MPa), and the pulse dur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::206f1aca2aa274d94b906156ec2e947f
Publikováno v:
Chemical Engineering Journal. 433:133836
Selective catalytic reduction with NH3 (NH3-SCR) is an effective NOx removal technology in the industry. Vanadia supported on tungsten titania (V2O5/WO3-TiO2) is most widely utilized for NH3-SCR because of its high tolerance to sulfur. Although it ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::399c61510c97f9a0e20eec58714abfc3
https://doi.org/10.1016/j.cej.2021.133836
https://doi.org/10.1016/j.cej.2021.133836
Autor:
Dong Jun Koh, Joonwoo Kim, Se Won Jeon, Ismail A.M. Ibrahim, Byun Young-Chul, Hwangho Lee, Jeong Woo Han, Do Heui Kim, Inhak Song
Publikováno v:
Nature Communications
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
NOx abatement has been an indispensable part of environmental catalysis for decades. Selective catalytic reduction with ammonia using V2O5/TiO2 is an important technology for removing NOx emitted from industrial facilities. However, it has been a hug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abe0c354215c454278a75e576f8493fe
https://pubmed.ncbi.nlm.nih.gov/33568656
https://pubmed.ncbi.nlm.nih.gov/33568656
Publikováno v:
Journal of Nanoelectronics and Optoelectronics. 8:540-544
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f43a4eca51f59993ceda72ba2969b212
https://doi.org/10.1166/jno.2013.1536
https://doi.org/10.1166/jno.2013.1536
Autor:
Dong Jun Koh, Joon Hyun Baik, Ung Gi Hong, Jeong Gil Seo, Sunhwan Hwang, In Kyu Song, Hyojun Lim, Joongwon Lee
Publikováno v:
Journal of Industrial and Engineering Chemistry. 19:2016-2021
Mesoporous nickel (30 wt%)–iron (5 wt%)–alumina (denoted as NiFeAl–X) catalysts were prepared by a coprecipitation method with a variation of precipitation agent (X = (NH4)2CO3, Na2CO3, NH4OH, and NaOH), and they were applied to the methane pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9133d447b16bd2d1b9ce91a3f941d7c8
https://doi.org/10.1016/j.jiec.2013.03.015
https://doi.org/10.1016/j.jiec.2013.03.015
Publikováno v:
Catalysis Communications. 35:68-71
The effect of various Mo catalyst supports, i.e., γ-Al2O3, SiO2, SiO2–Al2O3, ZrO2, yttria-stabilized zirconia (YSZ), CeO2, and TiO2, on CO hydrogenation in the presence of H2S was examined. At 5 wt.% Mo loading, Mo/ZrO2 was determined to be the mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b49b5f61049a1dcf24edb0d897bcaebd
https://doi.org/10.1016/j.catcom.2013.02.004
https://doi.org/10.1016/j.catcom.2013.02.004
Autor:
Sunhwan Hwang, Joon Hyun Baik, Ung Gi Hong, Hyojun Lim, In Kyu Song, Dong Jun Koh, Joongwon Lee
Publikováno v:
Journal of Industrial and Engineering Chemistry. 19:698-703
Mesoporous nickel (35 wt%)–iron (5 wt%)–ruthenium (x wt%)–alumina xerogel (denoted as 35Ni5FexRuAX) catalysts with different ruthenium contents (x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0) were prepared by a single-step sol–gel method for use in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bed8ef39a0adfecae65a3280e223d3f
https://doi.org/10.1016/j.jiec.2012.10.007
https://doi.org/10.1016/j.jiec.2012.10.007
Autor:
Joon Hyun Baik, Joongwon Lee, Ung Gi Hong, Sunhwan Hwang, Dong Jun Koh, Hyojun Lim, In Kyu Song
Publikováno v:
Catalysis Letters. 142:860-868
Mesoporous nickel (35 wt%)–M (5 wt%)–alumina xerogel (denoted as 35Ni5MAX) catalysts with different second metal (M = Fe, Zr, Ni, Y, and Mg) were prepared by a single-step sol–gel method for use in the methane production from carbon dioxide and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df698770d28006b9ea996753884b0377
https://doi.org/10.1007/s10562-012-0842-0
https://doi.org/10.1007/s10562-012-0842-0