Scully, Scott, Murphy & Presser
SAPO-11 molecular sieve, its synthetic method and a catalyst containing the molecular sieve
A SAPO-11 silicoaluminopihosphate molecular sieve, its preparation method, and a catalyst containing the same are disclosed. The X-ray diffraction data of the molecular sieve before removing the template by calcination are as listed in Table 1. The molar composition of this molecular sieve after removing the template by calcination expressed in anhydrous oxides is Al2O3: yP2O5: zSiO2, in which y has a value of 0.60-1.20, and z has a value of 0.05-1.3, characterized in that after removing the template by calcination, its X-ray diffraction data are as listed in Table 3, and that the crystal structures of the molecular sieve before and after removing the template by calcination are substantially the same. The catalyst is composed of 10-85% by weight of said SAPO-11 molecular sieve, 0.05-1.5% by weight of Pd or Pt, and the balance is alumina. In comparison with similar catalysts in the prior art, when the catalyst of this invention is applied in the reaction of hydrocarbon hydroisomerization, both selectivity and product yield for isomerization are remarkably increased.
Research Institute of Petroleum Processing, Sinopec China Petroleum and Chemical Corporation
C B C B
C01B B01J C10G B01J
inventional additional inventional inventional
Weidong Yucming Fengmei Fengming Xingtian
Wang Liu Zhang Qin Shu