Preparation and evaluation of selective hydrogenation catalyst for process of removing vinylacetylene in cracked C_4 mixture

裂解混合碳四选择加氢除 炔催化剂的制备及工艺评价 乙烯 基 炔 与 一氧化氮 反应 机理 的 理论 探讨

It is found that with certain reaction conditions Pd Pb / Al 2O 3 is an effective catalyst . After hydrogenation both ethylacetylene and vinylacetylene contents are reduced to below 1 0 × 10 - 5 and 1 butadiene loss does not exceed 3 %

结果表明，Pd－Pb／Al2O3催化剂在一定工艺条件下可以将碳四馏份中的乙基乙炔和 乙烯 基 乙炔分别 除至1.0×10－5以下，并且保证丁二烯损失小于3%。

Theoretical Study on the π Type Hydrogen bonded Complexes Between Vinylacetylene and HX Molecules

乙烯 基 乙炔 与 卤化氢分子间π型氢键的理论研究

The result showed that the polymer formation in the production process of vinylacetylene was related to the amount of the main catalyst type and amount of cosolvent acidity of catalyst reaction temperature and airspeed of acetylene .

实验证明， 二聚中高聚物的形成与主催化剂的用量、助溶剂的种类及用量、催化剂酸度、 乙炔空速和反应温度有 很大关系。