Patents by Inventor Yucming Liu

Yucming Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • SAPO-11 molecular sieve, its synthetic method and a catalyst containing the molecular sieve
    Patent number: 6596156
    Abstract: 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.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: July 22, 2003
    Assignees: China Petroleum and Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Fengmei Zhang, Yucming Liu, Xingtian Shu, Weidong Wang, Fengming Qin