XIANG Jiang-nan, LIU Wei, LIU Cheng-lian, WANG Yan, CHEN Shu-wei, BI Shi-nan, FAN Bin-bin, LI Rui-feng. Synthesis and hydroisomerization performance of n-C12 over ZSM-48 molecular sieve with low silicon-aluminum ratio[J]. Journal of Fuel Chemistry and Technology, 2020, 48(1): 83-90.
Citation: XIANG Jiang-nan, LIU Wei, LIU Cheng-lian, WANG Yan, CHEN Shu-wei, BI Shi-nan, FAN Bin-bin, LI Rui-feng. Synthesis and hydroisomerization performance of n-C12 over ZSM-48 molecular sieve with low silicon-aluminum ratio[J]. Journal of Fuel Chemistry and Technology, 2020, 48(1): 83-90.

Synthesis and hydroisomerization performance of n-C12 over ZSM-48 molecular sieve with low silicon-aluminum ratio

  • A series of ZSM-48 zeolites with low Si/Al ratios (Si/Al < 100) were synthesized by hydrothermal synthesis method using hexamethydiammonium bromide as the structure directing agent. ICP-AES results showed that the Si/Al ratio of the synthesized sample was as low as 38.6, indicating the zeolite could be widely used. Pt supported on ZSM-48 with different Si/Al ratios were used for n-paraffin hydroisomerization. The catalytic reaction results showed that Pt/HZSM-48 with Si/Al ratio of 70 exhibited the best catalytic performance. However, the distribution of isomers had not been affected by Si/Al ratio of the ZSM-48, and the central-branched isomers were the main hydroisomerization products.
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