Performance and characterization of BEA catalysts for catalytic cracking

被引：22

作者：

Nakao, R

Kubota, Y

Katada, N

Nishiyama, N

Kunimori, K

Tomishige, K

机构：

[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[2] Gifu Univ, Fac Engn, Dept Mat Sci & Technol, Gifu 5011193, Japan

[3] Osaka Univ, Grad Sch Engn Sci, Div Chem Engn, Toyonaka, Osaka 5608531, Japan

[4] Tottori Univ, Fac Engn, Dept Mat Sci, Minami Ku, Tottori 6808552, Japan

[5] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

APPLIED CATALYSIS A-GENERAL | 2004年 / 273卷 / 1-2期

关键词：

catalytic cracking; BEA zeolite; deactivation; regeneration; bronsted acid site;

D O I：

10.1016/j.apcata.2004.06.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Homemade BEA zeolite prepared by a hydrothermal synthesis method (BEA(HTS)) had more Bronsted acid sites than commercial BEA zeolites, and exhibited much higher activity in catalytic cracking of hydrocarbons, especially n-heptane. The catalyst was characterized by means of X-ray diffraction, nitrogen adsorption, temperature-programmed desorption of adsorbed ammonia, and FT-IR of adsorbed pyridine. The structure of BEA(HTS) was found to be partly changed and partly destroyed; however, BEA(HTS) gave high n-heptane conversion even after the regeneration treatment. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：63 / 73

页数：11

共 37 条

[11] An adsorption method for the determination of the area of a solid without the assumption of a molecular area, and the area occupied by nitrogen molecules on the surfaces of solids [J].