Catalytic process for oligomerizing ethene
AssigneeMobil Oil Corporation
InventorsWilliam E. Garwood, John D. Kushnerick, Samuel A. Tabak
Life of this patent
Estimating the term…
Abstract
A continuous catalytic process for converting ethene-rich olefinic feedstock containing reducing gas to heavier liquid hydrocarbon product, comprising the steps of contacting the ethene-rich feedstock at elevated temperature in a catalytic reaction zone with a zeolite catalyst comprising a nickel-ethene oligomerization component and a shape-selective medium pore acid zeolite oligomerization component to convert at least a portion of the lower olefinic components to heavier olefinic hydrocarbons; and feeding water with the feedstock in sufficient amount to prevent substantial reduction of the nickel component.
Claims14
A catalytic process for converting ethene-rich lower olefinic feedstock containing hydrogen heavier liquid hydrocarbon product, comprising the steps of
- contacting said ethene-rich feedstock containing hydrogen at elevated temperature of about 100.degree. to about 450.degree. C. in the presence of water with at least one conversion catalyst comprising a nickel ethene oligomerization component and a shape-selective medium pore acidic zeolite oligomerization component to convert at least a portion of the feedstock to said heavier hydrocarbon product, said water being present in amount sufficient to maintain the nickel component in an oxidized state.
A process for oligomerizing olefinic feedstock containing ethylene and hydrogen by contacting the feedstock under oligomerization conditions with a bifunctional solid catalyst having a nickel ethylene oligomerization component and an acidic shape-selective crystalline zeolite component, and comprising the step of contacting the catalyst with water during said oligomerizing in sufficient amount to maintain the nickel component in an oxidized state.
A process for oligomerizing an ethylene-containing olefinic feedstock containing a minor amount of reducing gas to heavier hydrocarbons by contacting said ethylene-containing olefinic feedstock containig a minor amount of reducing gas with a solid nickel and zeolite containing catalyst at elevated oligomerizing temperature, comprising
- feeding water concurrently, with the feedstock in the amount of at least 0.1 water equivalents per molar equivalent of said reducing gas, thereby maintaining at least a portion of the catalytic nickel of the solid nickel and zeolite containing catalyst in an active oxidized state for oligomerization.
Dependencies are inferred from the claim text.