Methane transformation into aromatic hydrocarbons by activation with LPG over Zn-ZSM-11 zeolite

被引:39
作者
Anunziata, OA [1 ]
Eimer, GA [1 ]
Pierella, LB [1 ]
机构
[1] Univ Tecnol Nacl, Fac Cordoba, Ctr Invest & Tecnol Quim, RA-5016 Cordoba, Argentina
关键词
methane activation; LPG; aromatic hydrocarbons; Zn-zeolite;
D O I
10.1023/A:1019019109987
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
Methane (C-1) can be activated by interaction with liquefied petroleum gas (LPG) even at very high C-1 molar fractions in the feed (C-1/(C-1+LPG)=0.85) at temperatures of 450-550(degrees)C, GHSV(LPG)=2240 and 810 ml/g h, over Zn-ZSM-11 (molar fraction Zn2+/(Zn2++H+)=0.86) and total pressure of 1 atm. The isobutane (i-C-4) of LPG could be the main responsible of this interaction. Aromatic hydrocarbons were the main products in the whole range of C-1 molar fractions (0.4-0.85) studied, reaching excellent levels of 10-45%.
引用
收藏
页码:235 / 239
页数:5
相关论文
共 21 条
[1]   AROMATIZATION OF NATURAL PROPANE USING MODIFIED MOLECULAR-SHAPE SELECTIVE ZEOLITES [J].
ANUNZIATA, OA ;
PIERELLA, LB ;
ORIO, OA .
REACTION KINETICS AND CATALYSIS LETTERS, 1991, 43 (01) :67-73
[2]   ZN-ZSM-11 ZEOLITE CATALYST FOR LPG AROMATIZATION [J].
ANUNZIATA, OA ;
PIERELLA, LB .
CATALYSIS LETTERS, 1992, 16 (04) :437-441
[3]   Expanded regional rate analysis: A novel method to determine regional formation rates in catalyzed reactions [J].
Anunziata, OA ;
Pierella, LB ;
Marino, RG .
APPLIED CATALYSIS A-GENERAL, 1997, 165 (1-2) :35-49
[4]   NATURE OF THE ACTIVE-SITES IN H-ZSM-11 ZEOLITE MODIFIED WITH ZN(2+) AND GA(3+) [J].
ANUNZIATA, OA ;
PIERELLA, LB .
CATALYSIS LETTERS, 1993, 19 (2-3) :143-151
[5]   NORMAL-PENTANE CONVERSION TO AROMATIC-HYDROCARBONS OVER ZN-ZSM-11 ZEOLITE [J].
ANUNZIATA, OA ;
ORIO, OA ;
PIERELLA, LB ;
AGUIRRE, MC .
REACTION KINETICS AND CATALYSIS LETTERS, 1989, 39 (01) :75-80
[6]  
Chu P., 1972, US Pat., Patent No. [3,709,979, 3709979]
[7]  
Franck H.G., 1988, IND AROMATIC CHEM
[8]   CONVERSION OF LIGHT ALKANES TO AROMATIC-HYDROCARBONS .2. ROLE OF GALLIUM SPECIES IN PROPANE TRANSFORMATION ON GAHZSM5 CATALYSTS [J].
GNEP, NS ;
DOYEMET, JY ;
SECO, AM ;
RIBEIRO, FR ;
GUISNET, M .
APPLIED CATALYSIS, 1988, 43 (01) :155-166
[9]  
GNEP NS, 1987, APPL CATAL, V35, P12
[10]   AROMATIZATION OF SHORT CHAIN ALKANES ON ZEOLITE CATALYSTS [J].
GUISNET, M ;
GNEP, NS ;
ALARIO, F .
APPLIED CATALYSIS A-GENERAL, 1992, 89 (01) :1-30