Abstract A process for activating a catalytic composition including a porous inorganic oxide carrier, a platinum group component and a tin component, comprising: reacting the catalytic composition with an activating gas including oxygen at a temperature within the range from about 500*F. to about 1300*F. for at least about 0.5 hour. The activating gas preferably includes a halogenating component. The activating gas is preferably slightly moist and is preferably flowed through the catalytic composition. The catalytic composition may comprise a fresh catalytic composition, a regenerated catalytic composition, or a mixture thereof. A preferred activated catalytic composition comprises an alumina carrier, 0.01 to 3 weight percent platinum, 0.01 to 8 weight percent tin, and 0.01 to 3 weight percent halide. It may also contain 0.01 to 3 weight percent rhenium. Another preferred activated catalytic composition comprises an alumina carrier, 0.01 to 3 weight percent platinum, 0.01 to 5 weight percent tin, 0.001 to 1 weight percent iridium and 0.01 to 3 weight percent halide. Also covers the resulting activated catalytic compositions.
A process in accordance with claim 1 wherein the catalytic composition is contacted with a gas comprising oxygen at a temperature between 500* and 1300*F. prior to contacting the catalytic composition with said activating gas, to thereby regenerate the catalytic composition prior to contacting the catalytic composition with said activating gas.
Claim 2
Dependent Claim
87 words
A process in accordance with claim 1 wherein the catalytic composition consists essentially of platinum, platinum oxide, or platinum sulfide and tin, tin oxide, or tin sulfide and a porouS alumina carrier, and 0.3 to 3.0 weight percent halide and wherein said process consists essentially of contacting the catalytic composition with oxygen at a temperature between 500* and 1300*F. and then contacting the catalytic composition with oxygen and a halogenating component at a temperature between 500* and 1300*F. for a time sufficient to activate the catalytic composition.
Claim 3
Dependent Claim
41 words
A process in accordance with claim 1, wherein the platinum or platinum compound includes platinum in an amount from 0.01 to 3 weight percent, and the tin or tin compound is in an amount from about 0.01 to 8 weight percent.
Claim 4
Dependent Claim
18 words
A process in accordance with claim 4, wherein the catalytic composition includes 0.01 to 3 weight percent rhenium.
Claim 5
Dependent Claim
22 words
A process in accordance with claim 4, wherein the catalytic composition includes iridium in an amount from 0.001 to 1 weight percent.
Claim 6
Dependent Claim
14 words
A process in accordance with claim 1, wherein the activating gas is slightly moist.
Claim 7
Dependent Claim
17 words
A process in accordance with claim 1, wherein the activating gas is flowed through the catalytic composition.