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Acta Physico-Chimica Sinica  1994, Vol. 10 Issue (08): 698-703    DOI: 10.3866/PKU.WHXB19940806
Characterization of Solid Superacidity by Butane Isomerization Reaction at Ambient Temperature
Gao Zi, Chen Jian-Min, Tang Yi, Hua Wei-Ming
Department of Chemistry, Fudan University, Shanghai 200433
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Butane reactions on SO~(2-)_4/ZrO_2 type solid superacids at ambient temperature were studied. The butane isomerization selectivity is higher than 95% while the total reaction conversion is lower than 50%. The rate of the butane isomerization reaction follows the rate law of a first-order reversible reaction. The reaction conversion, rate constant and activation energy of the isomerization reaction are dependent on the superacidity of the solid catalysts. As the H_o of the catalysts is increased, the reaction conversion and rate constant are increased and the activation energy is decreased. The butane isomerization at ambient temperature is a good probe reaction for the characterization of solid superacidity.

Key wordsSO2-4/ZrO2 system      Solid superacid      Butane isomerization      Characterization of superacidity     
Received: 09 April 1993      Published: 15 August 1994
Corresponding Authors: Gao Zi   
Cite this article:

Gao Zi, Chen Jian-Min, Tang Yi, Hua Wei-Ming. Characterization of Solid Superacidity by Butane Isomerization Reaction at Ambient Temperature. Acta Physico-Chimica Sinica, 1994, 10(08): 698-703.

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