Patents by Inventor Tieqiang Zeng

Tieqiang Zeng 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).

  • ETHYLBENZENE DEHYDROGENATION CATALYST, PREPARATION METHOD THEREFOR, AND USE THEREOF
    Publication number: 20240399341
    Abstract: An ethylbenzene dehydrogenation catalyst, a preparation method therefor, and the use thereof are provided. The catalyst includes Fe2O3, K2O, CeO2, MoO3 and CaO. The exposed crystal face area of CeO2 (100) accounts for 60% or more of the total exposed crystal face area of CeO2. The catalyst is used in a reaction for preparing styrene by means of dehydrogenating ethylbenzene at a low water ratio, and has high activity and stability.
    Type: Application
    Filed: October 11, 2022
    Publication date: December 5, 2024
    Inventors: Tieqiang ZENG, Changxi MIAO, Lei SONG, Chunling WEI, Min ZHU, Zhengpai ZHANG, Yongfan XU, Kaiwen ZHA
  • Catalyst for the oxidative dehydrogenation of butene to butadiene and preparation process thereof
    Patent number: 9546118
    Abstract: The present disclosure provides a catalyst for oxidative dehydrogenation of butene to butadiene, comprising at least one compound of formula ZnaAlbMcFeeOf.Z(?-Fe2O3), wherein M is at least one element chosen from Be, Mg, Ca, Sr, Mn, Ba, Cu, Co, and Ni, Z represents the percentage by weight of ?-Fe2O3 in the catalyst and ranges from 10% to 70%. Also provided herein is a process of preparing said catalyst and the use of said catalyst in an oxidative dehydrogenation of butene to butadiene processes.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 17, 2017
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Changxi Miao, Wenhai Wu, Zhigui Fan, Tieqiang Zeng, Chunjing Ma, Sheng Wu
  • CATALYST FOR THE OXIDATIVE DEHYDROGENATION OF BUTENE TO BUTADIENE AND PREPARATION PROCESS THEREOF
    Publication number: 20140066680
    Abstract: The present disclosure provides a catalyst for oxidative dehydrogenation of butene to butadiene, comprising at least one compound of formula ZnaAlbMcFeeOf.Z(?-Fe2O3), wherein M is at least one element chosen from Be, Mg, Ca, Sr, Mn, Ba, Cu, Co, and Ni, Z represents the percentage by weight of ?-Fe2O3 in the catalyst and ranges from 10% to 70%. Also provided herein is a process of preparing said catalyst and the use of said catalyst in an oxidative dehydrogenation of butene to butadiene processes.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Applicants: Shanghai Research Institute of Petrochemical Technology SINOPEC, China Petroleum & Chemical Corporation
    Inventors: Changxi Miao, Wenhai Wu, Zhigui Fan, Tieqiang Zeng, Chunjing Ma, Sheng Wu