Synthesis and characterization of ZSM-5 with novel ternary-particle morphology and pore structure
ZSM-5 zeolite with novel ternary-particle morphology and pore structure was synthesized successfully using a cationic starch as the structure template. XRD confirmed that QASt-ZSM-5 zeolite was phase-pure and highly crystalline. SEM showed that QASt-ZSM-5 had novel ternary-particle morphology, the large crystals were really twinned, cube-shaped crystals of characteristic ZSM-5. Nitrogen adsorption-desorption isotherms of QASt-ZSM-5 appeared to show a more pronounced hysteresis loop and a higher adsorbed quantity of nitrogen in the higher relative pressure section. Daqing heavy oil was employed as the feedstock to evaluate the catalytic properties of QASt-ZSM-5 zeolite catalyst. The new material (QASt-ZSM-5) showed that it had a good selectivity for diesel and the yield of total light oil increased, compared with the catalytic cracking performance of ordinary ZSM-5.
Lirui He Weisong Zhang Chaobing Gong Hongjuan Zhao Penghui Zeng Baojian Shen
State Key Laboratory of Heavy Oil Processing, The Key Laboratory of Catalysis of CNPC,and Faculty of Chemical Science and Engineering, China University of Petroleum-Beijing, Beijing Changping, 102249
国际会议
北京
英文
2007-08-12（万方平台首次上网日期，不代表论文的发表时间）