A novel FCC catalyst synthesized via in situ overgrowth of NaY zeolite on kaolin microspheres for maximizing propylene yield

被引：60

作者：

Liu, Honghai

Zhao, Hongjuan

Gao, Xionghou

Ma, Jiantai ^{[1
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

[2] Petro China Co Ltd, Petr Res Inst, Beijing 100083, Peoples R China

来源：

CATALYSIS TODAY | 2007年 / 125卷 / 3-4期

关键词：

FCC catalyst; in situ synthesis; NaY/kaolin composite microspheres; propylene;

D O I：

10.1016/j.cattod.2007.05.005

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

NaY/kaolin composite microspheres were synthesized by an in situ method using calcined kaolin microspheres as raw material. By mixing the modified NaY/kaolin composite microspheres and additive microspheres containing ZSM-5, a novel fluid catalytic cracking (FCC) catalyst for maximizing propylene yield in FCC unit was prepared. The catalyst was characterized by X-ray diffraction (XRD), temperature-programmed desorption of ammonium (NH3-TPD), and N-2 adsorption-desorption techniques and tested in a bench FCC unit. The characterization results indicated that the catalyst has more meso- and macro-pores and more acid sites than the reference catalyst and thus can increase propylene yield by 1.27%. (C) 2007 Elsevier B.V.. All rights reserved.

引用

页码：163 / 168

页数：6

共 14 条

[1] The influence of alumina on the performance of FCC catalysts during hydrotreated VGO catalytic cracking [J].

Al-Khattaf, S .

ENERGY & FUELS, 2003, 17 (01) :62-68

[2] The influence of Y-zeolite unit cell size on the performance of FCC catalysts during gas oil catalytic cracking [J].

Al-Khattaf, S .

APPLIED CATALYSIS A-GENERAL, 2002, 231 (1-2) :293-306

[3] INFLUENCE OF FRAMEWORK ALUMINUM GRADIENTS ON THE CATALYTIC ACTIVITY OF Y-ZEOLITES - CRACKING OF GAS-OIL ON Y-ZEOLITES DEALUMINATED BY DIFFERENT PROCEDURES [J].

ARRIBAS, J ;

CORMA, A ;

FORNES, V ;

MELO, F .

JOURNAL OF CATALYSIS, 1987, 108 (01) :135-142

[4]

Brown S. M., 1985, Patent No. [US4493902, 4493902]

[5]

Brown S. M., 1980, US Patent, Patent No. [4 235753, 4235753]

[6]

DIGHT LB, 1990, Patent No. 5023220

[7] Effect of unit cell size on the activity and coke selectivity of FCC catalysts [J].

Ino, T ;

AlKhattaf, S .

APPLIED CATALYSIS A-GENERAL, 1996, 142 (01) :5-17

[8] Interactions between heavy metals and clay matrix in fluid catalytic cracking catalysts [J].

Liu, CH ;

Deng, YQ ;

Pan, YQ ;

Zheng, SG ;

Gao, XH .

APPLIED CATALYSIS A-GENERAL, 2004, 257 (02) :145-150

[9] THE DEVELOPMENT OF STRONG ACIDITY IN HEXAFLUOROSILICATE-MODIFIED Y-TYPE ZEOLITES [J].

LONYI, F ;

LUNSFORD, JH .

JOURNAL OF CATALYSIS, 1992, 136 (02) :566-577

[10] A TPD and IR study of the surface species formed from ammonia on zeolite H-ZSM-5, H-mordenite and H-beta [J].

Lónyi, F ;

Valyon, J .

THERMOCHIMICA ACTA, 2001, 373 (01) :53-57

← 1 2 →