Process to produce aromatics of low acid-wash color

Details Process to produce aromatics of low acid-wash color Process to produce aromatics of low acid-wash color

1988-11-22

1991-04-02

Pal, Asok

Chemistry of hydrocarbon compounds

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

Hydrocarbon is contaminant in desired hydrocarbon

585258, 585259, 585261, 585807, C07C 7163

Patent

active

050048511

ABSTRACT:
Nitration Grade benzene is made from a benzene stream with impurities including olefins by first fractionally distilling the benzene to a purity of at least 99 mole percent and subsequently passing the stream in a liquid phase in the presence of hydrogen through a hydrogenation step with a palladium catalyst under conditions such that substantially all olefins remaining in the stream are hydrogenated to paraffins.

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