The method of claim 1 where the feedstock comprises acetylene and the acetylene conversion of the first hydrogenation catalyst is at least 50%.
The method of claim 1 where the feedstock comprises methylacetylene and the methylacetylene conversion of the first hydrogenation catalyst is at least 50%.
In another non-limiting embodiment of the invention, the conversion of the unsaturated compound (acetylene, methylacetylene, propadiene, 1,2-butadiene, 1,3-butadiene, dimethyl acetylene, ethyl acetylene and mixtures thereof by this first hydrogenation catalyst is at least 50%, preferably at least 90%.
O ⇌ CO Less significant methane-derived chemicals include acetylene, prepared by passing methane through an electric arc, and the chloromethanes (chloromethane, dichloromethane, chloroform, and carbon tetrachloride), produced by reacting methane with chlorine gas.
However, the use of these chemicals is declining, acetylene as it is replaced by less costly substitutes, and the chloromethanes due to health and environmental concerns.
Methyl group, a functional group similar to methane.
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