After hydrogenation both ethylacetylene and vinylacetylene contents are reduced to below 1 0×10 -5 ,and 1,3 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。
