Journal
JOURNAL OF POROUS MATERIALS
Volume 23, Issue 6, Pages 1489-1493Publisher
SPRINGER
DOI: 10.1007/s10934-016-0209-9
Keywords
Bifunctional catalyst; Hydroisomerization of n-heptane; Composite molecular sieve; beta zeolite MCM-41
Funding
- Tianjin Research Program of Application Foundation and Advanced Technology [14JCZDJC40600]
- Tianjin College Science & Technology Developing Fund [20140502]
- National Undergraduate Innovation and Entrepreneurship Training Project [201410057043]
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beta-MCM-41 composite molecular sieves were hydrothermally synthesized via two-step method. All the catalysts were characterized by XRD, FT-IR, BET and ICP. The catalysts were evaluated in hydroisomerization of n-heptane in a fixed bed flow reactor. Under the same condition, Pt/H beta-MCM-41 was demonstrated to be a more mono-iso selectivity catalyst because the connection between mesopores and micropores accelerates the diffusion. Under optimal conditions, (precursor7.5d) Pt/H beta-MCM-41 provided a very high selectivity to isomerization 90.0 % coupling with a considerable high conversion of n-heptane 59.9 % at 250 A degrees C.
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