Compensation between activation entropy and enthalpy in reactions of aromatic hydrocarbons catalyzed by solid acids

被引：16

作者：

Nakamura, Koshiro ^{[1
]}

Mizuta, Ryo ^{[1
]}

Suganuma, Satoshi ^{[2
]}

Tsuji, Etsushi ^{[1
]}

Katada, Naonobu ^{[1
]}

机构：

[1] Tottori Univ, Dept Chem & Biotechnol, Grad Sch Engn, Minami Ku, 4-101 Koyama Cho, Tottori 6808552, Japan

[2] Tottori Univ, Ctr Res Green Sustainable Chem, Fac Engn, Minami Ku, 4-101 Koyama Cho, Tottori 6808552, Japan

来源：

CATALYSIS COMMUNICATIONS | 2017年 / 102卷

关键词：

Activation entropy; Activation enthalpy; Zeolite; Silica-alumina; Toluene disproportionation; Cumene cracking; TEMPERATURE-PROGRAMMED DESORPTION; CRACKING; ZEOLITES; AMMONIA; ALKANES; SITES; DISPROPORTIONATION; TRANSALKYLATION; THERMODYNAMICS; ALKYLBENZENES;

D O I：

10.1016/j.catcom.2017.08.033

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：

Reaction rates of toluene disproportionation (A) and cumene cracking (B) normalized by the number of Bronsted acid sites were analyzed on aluminosilicates. The activation entropy showed linear and compensatory relationship against the activation enthalpy. The slope of entropy-enthalpy plot was in the order of (B) > (A) > small alkane cracking, whereas the intercept on the horizontal axis was in the order of propane and isobutane cracking > linear C4-8 alkanes and iso-pentane cracking > (A) > (B). The former is consistent with the bulkiness of reactant, while the latter is consistent with intrinsic difficulty of formation of intermediate cations.

引用

页码：103 / 107

页数：5

共 30 条

[1] Recent Advances in Reactions of Alkylbenzenes Over Novel Zeolites: The Effects of Zeolite Structure and Morphology [J].

Al-Khattaf, Sulaiman ;

Ali, Syed A. ;

Aitani, Abdullah M. ;

Zilkova, Nadezda ;

Kubicka, David ;

Cejka, Jiri .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2014, 56 (04) :333-402

[2]

Beck J. S., 1994, U.S. Pat, Patent No. 5367099

[3] Entropy considerations in monomolecular cracking of alkanes on acidic zeolites [J].

Bhan, Aditya ;

Gounder, Rajamani ;

Macht, Josef ;

Iglesia, Enrique .

JOURNAL OF CATALYSIS, 2008, 253 (01) :221-224

[4] Acid-catalyzed synthesis of mono- and dialkyl benzenes over zeolites:: Active sites, zeolite topology, and reaction mechanisms [J].

Cejka, J ;

Wichterlová, B .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2002, 44 (03) :375-421

[5] Protolytic cracking of low-molecular-weight alkanes in the presence of iron- and manganese-promoted sulfated zirconia: evidence of a compensation effect [J].

Cheung, TK ;

Jentoft, FC ;

d'Itri, JL ;

Gates, BC .

CHEMICAL ENGINEERING SCIENCE, 1997, 52 (24) :4607-4613

[6] THE CATALYTIC CRACKING OF CUMENE [J].

CORMA, A ;

WOJCIECHOWSKI, BW .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1982, 24 (01) :1-65

[7] ZEOLITES AND ZEOTYPES AS CATALYSTS [J].

CORMA, A ;

MARTINEZ, A .

ADVANCED MATERIALS, 1995, 7 (02) :137-144

[8] INORGANIC SOLID ACIDS AND THEIR USE IN ACID-CATALYZED HYDROCARBON REACTIONS [J].

CORMA, A .

CHEMICAL REVIEWS, 1995, 95 (03) :559-614

[9] THE THERMODYNAMICS OF ADSORPTION .2. THERMODYNAMICS OF MONOLAYERS ON SOLIDS [J].

EVERETT, DH .

TRANSACTIONS OF THE FARADAY SOCIETY, 1950, 46 (11) :942-957

[10] CATALYSIS BY CRYSTALLINE ALUMINOSILICATES - CHARACTERIZATION OF INTERMEDIATE PORE-SIZE ZEOLITES BY THE CONSTRAINT INDEX [J].

FRILLETTE, VJ ;

HAAG, WO ;

LAGO, RM .

JOURNAL OF CATALYSIS, 1981, 67 (01) :218-222

← 1 2 3 →