| abstract |
(1) platinum, palladium, or the like, prepared as a distillation structure to selectively hydrogenate a hydrocarbon stream comprising hydrogen and C 4 hydrocarbons including butane, butene, butadiene and vinylacetylene, to selectively hydrogenate portions of vinylacetylene and 1,2-butadiene; Feed to a distillation column reactor containing a layer comprising a hydrogenation catalyst of the type characterized by rhodium (2) fractionally distill the reaction mixture to remove weight fractions and remove substantially all C 4 fractional overhead; A method of removing vinylacetylene, ethylacetylene and 1,2-butadiene from a C 4 aliphatic hydrocarbon stream comprising simultaneously. |