Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Yeung Ho Park"'
Autor:
Abdul Karim Shah, Ghulam Taswar Shah, Aqeel Ahmed Shah, Yeung Ho Park, Ayaz Ali Shah, Mooseok Choi, Shoaib Ahmed, Syed Nizamuddin Shah Bukhari, Ali Dad Chandio, Muhammad Atta Mahar, Muhammad Ali Shar, Abdulaziz Alhazaa
Publikováno v:
Molecules, Vol 28, Iss 2, p 743 (2023)
Nickel-supported hierarchical zeolite catalysts were prepared through a desilication reassembly process under optimized conditions and applied in one-pot menthol synthesis. In this work, the hierarchical zeolite-supported metal bifunctional catalysts
Externí odkaz:
https://doaj.org/article/9a3f83b0fbc24aa38239bf2c6410a90c
Autor:
Abdul Karim Shah, Syed Nizam-uddin Shah Bukhari, Ayaz Ali Shah, Abdul Sattar Jatoi, Muhammad Azam Usto, Zubair Hashmi, Ghulam Taswar Shah, Yeung Ho Park, Moo-Seok Choi, Arshad Iqbal, Tahir Hussain Seehar, Aamir Raza
Publikováno v:
Catalysts, Vol 12, Iss 9, p 1069 (2022)
This study primarily addresses the development of dynamic, selective and economical metal–acid (bifunctional) catalysts for one-pot menthol production by citral hydrogenation. Specifically, various metals such as Pd, Pt, Ni, Cs and Sn were doped ov
Externí odkaz:
https://doaj.org/article/eaeedfb39adc4719ade9d7cbc1dd27ef
Autor:
Ayaz Ali Shah, Abdul Karim Shah, Yeung Ho Park, Syed Nizamuddin Shah Bukhari, Aqeel Ahmed Shah, Ghulam Taswar Shah, Shoaib Ahmed, Abdul Sattar Jatoi, Praveen Kumar, Aamir Raza, Waseem Ali Abbasi, Moo-seok Choi
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Industrial & Engineering Chemistry Research. 59:6506-6516
In the present study, bimetallic Cu–Mg-supported silica catalysts were prepared by a chemisorption–hydrolysis method with different loadings of copper/magnesium and used for glycerol hydrogenolysis...
Autor:
Umair H. Bhatti, Abdul Qayoom Memon, Ghulamullah Maitlo, Ahmed Shah, Aqeel Ahmed Shah, Yeung Ho Park, Iftekhar Ahmed Channa, Abdul Sattar Jatoi, Ghulam Abbas Kandhro, Hubdar Ali Maitlo, Abdul Karim Shah
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 128:917-934
Menthol synthesis is possible through citral and citronellal hydrogenations via following multistage chemical reactions such as hydrogenation and cyclization. This research mainly focuses on a design of selective, active and cost-effective metal-acid
Autor:
Aqeel Ahmed Shah, Hassnain Abbas Khan, Rashid Mustafa Korai, Abdul Karim Shah, Imran Nazir Unar, Syed Farman Ali Shah, Usama Ismail, Ghulamullah Maitlo, Yeung Ho Park
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 128:507-522
In this work, desilication reassembly post treatment process was applied in synthesis of mesoporous zeolite with stable phase composition and applied it in citronellal cyclisation reaction for the production of isopulegol. The desilication and temper
Autor:
Abdul Waheed Bhutto, Hassnain Abbas Khan, Yeung Ho Park, Umair H. Bhatti, Praveen Kumar, Abdul Karim Shah, Sung Soo Park
Publikováno v:
Research on Chemical Intermediates. 44:2405-2423
Citronellal cyclisation to isopulegol is an important intermediate step in the production of menthol. Several heteropoly acids (PTA) supported on modified montmorillonite (MM) catalysts were synthesized and then tested in cyclisation reactions. The p
Autor:
Dae Ho Lim, Jong Kyun You, Yeung Ho Park, Umair H. Bhatti, Sung-Chan Nam, Soo Hyun Choi, Abdul Karim Shah, Il Hyun Baek, Jeong Nam Kim
Publikováno v:
ACS Sustainable Chemistry & Engineering. 5:5862-5868
Large heat duty for amine regeneration in absorption-based CO2 capture is one of the major drawbacks of this process. Along with a highly endothermic carbamate breakdown reaction in the stripper, the difficulty of proton transfer from protonated amin
Publikováno v:
Korean Chemical Engineering Research. 53:339-349
본 연구에서는 활성탄을 대체하는 소재로서 재생이 용이하고 열적 안정성이 높은 DAY (Dealuminated Y-type) 제올라이트를 제조하였다. 원료물질로는 NaY 제올라이트를 이용하였으며, 이온교환, 소
Publikováno v:
Asia-Pacific Journal of Chemical Engineering. 10:339-346
A series of 12-tungstophosphoric acid [HPW, H3PW12O40 (HPW)] catalysts supported on mesoporous titania–silica composite (TSC) were prepared by impregnation method. Primarily, TSC with mesostructure was successfully prepared by a modified sol–gel