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Citation: Tan Weihong, Peng Shaoyi, Tan Changyu. KINETIC STUDY OF CONSECUTIVE HYDROGENATION OF ACETYLENE[J]. Chinese Journal of Applied Chemistry, ;1988, 5(1): 47-51. shu

KINETIC STUDY OF CONSECUTIVE HYDROGENATION OF ACETYLENE

1.
Institute of Coal Chemistry, Academia Sinica, Taiyuan

Received Date: 21 October 1985
Available Online: 8 July 1987

Kinetic studies of consecutive hydrogenation of acetylene on Pd/Al₂O₃ (fiber) catalyst were carried out in a flow type integral reactor combined with chromatography analysis. Model discrimination was made and the surface reaction controlled Langmuir-Hinshelwood mechanism model was shown to be preferred. The rate parameters were evaluated by the combination of integral and differential methods. The following expressions for rate constants k₁(for acetylene hydrogenation) and k₂ (for ethylene hydrogenation) as a function of reaction temperature were obtained: k₁=4.46×10⁶exp(-10400/RT) k₂=2.83×10⁸exp(-12200/RT) A brief discussion about the hydrogenation of single ethylene was also given.
- Acetylene,
- Ethylene,
- Hydrogenation,
- Reaction kinetics,
- Palladium catalyst
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