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A New Technology for the Preparation of High-permeance ZSM-5 Zeolite Membrane

  • Yong Sheng Li*
  • , Jin Qu Wang
  • , Jian Lin Shi
  • , Lian Zhang Chen
  • , Shu Cai Guo
  • , Dong Sheng Yan
  • *此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

High-permeance ZSM-5 zeolite membrane was prepared on porous tubular α-Al2O3 support by varying-temperature hydrothermal synthesis. XRD patterns show that the membrane consists of ZSM-5 zeolite crystals. SEM analysis indicates that few defects exist in the membrane and the thickness of the membrane is about 9 μm. The hydrogen permeance through the membrane is about 2.4×10-6mol/(m2 · s · Pa), and the separation factor for n-C4H10/i-C4H10 mixture (volume ratio 1 : 1) is 40, which indicates that it has a high quality with high permeance and selectivity. Repeated nucleation and re-growth of the crystals on the support result in the dense membrane formation.

源语言英语
页(从-至)1859
页数1
期刊Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities
23
10
出版状态已出版 - 10月 2002
已对外发布

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