Metathesis of 2-pentene over Mo and W supported mesoporous molecular sieves MCM-41 and SBA-15

0477814 - ÚFCH JH 2018 RIV KR eng J - Journal Article
Ibrahim, M. A. - Akhtar, M. N. - Čejka, Jiří - Montanari, E. - Balcar, Hynek - Kubů, Martin - Al-Khattaf, S. S.
Metathesis of 2-pentene over Mo and W supported mesoporous molecular sieves MCM-41 and SBA-15.
Journal of Industrial and Engineering Chemistry. Roč. 53, SEP 2017 (2017), s. 119-126. ISSN 1226-086X. E-ISSN 1876-794X
R&D Projects: GA ČR(CZ) GAP106/12/0189
Institutional support: RVO:61388955
Keywords : metathesis * MCM-41 * SBA-15
OECD category: Physical chemistry
Impact factor: 4.841, year: 2017

Molybdenum and tungsten oxides were supported on silica, MCM-22, MCM-41 and SBA-15. XRD and N-2 adsorption-desorption revealed that architecture and textural character of supports were preserved. The catalysts were investigated in transformation of 2-pentene at different reaction temperatures. MoO3/MCM-22 exhibited highest conversions with isomerization and cracking as major reactions. MoO2(acac)(2), MoO3 and WO3 supported on MCM-41 and SBA-15 showed metathesis reaction of 2-C-5 producing propylene, C-4(-) and C-6+(-) asmajor products. Catalysts based on MCM-41 exhibited higher activity and stability than SBA-15. Addition of ethylene to 2-C-5(-) increased selectivity to propylene due to metathesis of ethylene with 2-pentene. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Permanent Link: http://hdl.handle.net/11104/0274037