NDLI: Terminal oxidation of n-octane over ZSM-5 and silicalite catalysts in the liquid phase.

Please wait, while we are loading the content...

Terminal oxidation of n-octane over ZSM-5 and silicalite catalysts in the liquid phase.

Content Provider	Semantic Scholar
Author	Ndlela, Siyabonga S.
Copyright Year	2016
Abstract	Three types of zeolites namely ion-exchanged ZSM-5 (Si/Al ratio of 47), framework substituted ZSM-5, and silicalite were synthesized. The synthesis of zeolite ZSM-5 was conducted using sol-gel method and modified using ionic exchange method to yield Fe-ZSM-5(47,IE), V-ZSM5(47,IE), Cr-ZSM-5(47,IE) and Mn-ZSM-5(47,IE). In addition, 1.1Fe0.8V-ZSM-5(IE) and 0.4Fe1.2V-ZSM-5(IE) catalysts were synthesized to evaluate the activity of a bimetallic catalyst. Furthermore, the synthesis of Fe-ZSM-5(62), 1.6Fe-silicalite, 1.8V-silicalite, 0.9Fe0.8V-silicalite and 0.3Fe1.3V-silicalite was carried out by an isomorphic substitution. The numbers represent the metal Wt%, while the number in bracket represents Si/metal ratios. Powder XRD results showed that only the ZSM-5 phase was obtained for all the prepared catalysts and the optical density ratio of all the catalysts was above 0.7 confirming the catalysts’ crystalline nature. All synthesized catalysts were tested in the oxidation of n-octane with H2O2 as the oxidant in MeCN at 80 °C for 8 hours. Fe-ZSM-5(47,IE), V-ZSM-5(47,IE), Cr-ZSM-5(47,IE), Mn-ZSM-5(47,IE), 1.1Fe0.8V-ZSM-5(IE) and 0.4Fe1.2V-ZSM-5(IE) produced selectivities of 38, 12, 10, 6, 21 and 17 % respectively to terminal products. Furthermore, 1.6Fe-silicalite, 1.8V-silicalite, 0.9Fe0.8Vsilicalite and 0.3Fe1.3V-silicalite achieved terminal selectivities of 17, 12, 16 and 22 % respectively while Fe-ZSM-5(62) showed 20 % terminal selectivity. The terminal selectivities were found to increase with the decrease in the amount of vanadium used in ZSM-5 while the opposite was true for silicalite catalysts.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://researchspace.ukzn.ac.za/xmlui/bitstream/handle/10413/15053/Ndlela_Siyabonga_S_2016.pdf?isAllowed=y&sequence=1
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in