Catalyst composition and process for the preparation of ethylene from ethane
AssigneeThe B.F. Goodrich Company
InventorAngelo J. Magistro
Life of this patent
Estimating the term…
Abstract
Solid solution catalyst in particulate form consisting of attrition resistant .alpha.-Al.sub.2 0.sub.3 particles with 0.5 to 10% by weight, expressed as the oxide, of iron cations substituted for aluminum cations in said catalyst support stabilized with 0.5 to 10% by weight, expressed as the oxide, of lanthanum and modified with at least two, preferably three, metal cations selected from the metals consisting of chromium, cobalt, magnesium, manganese, and barium; wherein one of said metal cations is barium and said catalyst has X-ray diffraction pattern with peak positions different than that of the .alpha.-Al.sub.2 0.sub.3 structure. A process is disclosed which produces ethylene from ethane while producing reduced amounts of vinyl chloride from said ethane to ethylene process.
Claims23
An oxydehydrogenation process for producing ethylene from ethane comprising reacting 1 mole of ethane, 0.1 to about 1.5 moles of oxygen, and 0.1 to about 10 moles of hydrogen chloride at a temperature of from 400.degree. C. to 650.degree. C. in the presence of a solid solution catalyst such that said ethane is dehydrogenated to form ethylene and less than 5 moles of vinyl chloride is formed per 100 moles of ethane feed and wherein said solid solution catalyst comprises .alpha.-Al.sub.2 O.sub.3 catalyst support particles with iron cations substituted for aluminum cations in the host lattice of .alpha.-Al.sub.2 O.sub.3 catalyst support having an iron content of 0.1 to 20% by weight expressed as the oxide stabilized with a total lanthanide content of 0.1 to 20% by weight expressed as the oxide and modified with at least two metal cations selected from the group consisting of barium, cobalt, chromium, magnesium and manganese, wherein barium is one of said metal cations and wherein said metal cations are present in amounts of 0.05 to 10% of each metal by weight expressed as the oxide;
- wherein said lanthanide content expressed as the oxide is selected from oxides of the elements 57 to 71 of the Periodic Table, and mixtures thereof;
- said solid solution catalyst having X-ray diffraction pattern having peak positions different than that of the host lattice.
An oxydehydrogenation process for producing ethylene from ethane comprising reaction 1 mole of ethane, 0.1 to about 1.5 moles of oxygen and 0.1 to about 10 moles of hydrogen chloride at a temperature of from 400.degree. C. to 650.degree. C. in the presence of a solid solution catalyst such that said ethane is dehydrogenated to form ethylene and less than 5 moles of vinyl chloride is formed per 100 moles of ethane feed and wherein said solid solution catalyst comprises iron cations substituted for aluminum cations in a host lattice of .alpha.-Al.sub.2 O.sub.3 having iron content of 0.5 to 10% by weight expressed as the oxide stabilized with lanthanum oxide in amount of 0.5 to 10% by weight and modified with at least two metal cations selected from the metals consisting of chromium, cobalt, manganese, magnesium and barium in amount of 0.1 to 3% by weight of each metal expressed as the oxide, wherein barium is one of said metal cations and said catalyst having X-ray diffraction pattern having peak positions different than that of the host lattice.
Dependencies are inferred from the claim text.