Selective hydrogenation of acetylenic impurities in crude butadi

Details Selective hydrogenation of acetylenic impurities in crude butadi Selective hydrogenation of acetylenic impurities in crude butadi

1986-12-24

1987-11-03

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

Hydrocarbon is contaminant in desired hydrocarbon

585258, 585260, C07C 503

Patent

active

047044926

ABSTRACT:
In a process wherein the vinyl acetylenes present as an impurity in a stream of butadienes are removed by hydrogenating the stream over a catalyst the loss of butadiene is lessened and catalyst aging is diminished by injecting the hydrogen in reduced quantities into a series of smaller catalyst beds connected in series.

REFERENCES:
patent: 4367353 (1983-01-01), Inglis
patent: 4469907 (1984-09-01), Araki
patent: 4493906 (1985-01-01), Couvillion
patent: 4587369 (1986-05-01), Casyns et al.

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