Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – With subsequent diverse conversion
Patent
1993-08-20
1995-09-26
Achutamurthy, P.
Chemistry of hydrocarbon compounds
Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...
With subsequent diverse conversion
585266, 585737, 585738, C07C 522, C07C 513, C07C 7163
Patent
active
054535522
ABSTRACT:
An advantageous integration of benzene saturation for a light paraffin containing feedstock in a light paraffin isomerization and adsorption system maintains isomerization conversion while reducing benzene levels. The process improves the efficiency of the isomerization and saturation zones by saturating benzene from a light paraffin containing stream and adsorbing normal hydrocarbons from the saturation zone effluent stream together with normal hydrocarbons from an isomerization zone effluent. The isomerization zone effluent comprises converted hydrocarbons from a light paraffin containing feedstream having a relatively low benzene concentration. Saturating the high benzene feed in a first step of saturation and passing the low benzene containing feedstream through the isomerization zone independent of the benzene saturation removes normal hydrocarbons from the isomerization step to improve equilibrium and provides a gaseous phase for desorption and a heavier hydrocarbon phase for adsorption to improve product recovery and normal paraffin recovery.
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Haizmann Robert S.
Rice Lynn H.
Turowicz Mark S.
Achutamurthy P.
McBride Thomas K.
Tolomei John G.
UOP
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