Abstract 1. IN AN ALKYLATION PROCESS IN WHICH AN ALKYLATABLE ORGANIC COMPOUND IS CONTACTED AND REACTED WITH AN ALKYLATION AGENT IN A CATALYTIC CONVERSION ZONE CONTAINING A CATALYST COMPOSITION COMPRISING AT LEAST ONE HYDROGENATION AGENT OF THE GROUP OF NICKEL, PLATINUM, PALLADIUM, RUTHENIUM AND RHODIUM AND THREE-DIMENSIONAL CRYSTALLINE ZEOLITIC MOLECULAR SIEVE HAVING A PORE DIAMETER LARGE ENOUGH TO ADSORB ORTHO-DIETHYLBENZENE, AN ALKALI METAL CONTENT OF LESS THAN 3.5 WEIGHT PERCENT ON A SOLIDS BASIS, AN SIO2/AL2O/3 MOLAR RATIO OF AT LEAST 7.0. SAID CONTACT AND REACTION BEING CONTINUED UNTIL THE ALKYLATION ACTIVITY OF THE CATALYST HAS DECREASED, THE IMPROVEMENT WHICH COMPRISES PERIDICALLY CONTACTING A DHYDROGENATING THE CATALYST COMPOSITION AT A TEMPERATURE OF FROM 80*F. TO 572*F. WITH A LIQUID SOLUTION OF HYDROGEN IN A SATURATED HYDROCARBON HAVING FROM 4 TO 12 CARBON ATOMS, SAID SOLUTION CONTAINING AT LEAST 0.1 MOLE PERCENT DISSOLVED HYDROGEN, UNTIL THE ALKYLATION ACTIVITY OF THE CATALYST IS IMPROVED.
IN AN ALKYLATION PROCESS IN WHICH AN ALKYLATABLE ORGANIC COMPOUND IS CONTACTED AND REACTED WITH AN ALKYLATION AGENT IN A CATALYTIC CONVERSION ZONE CONTAINING A CATALYST COMPOSITION COMPRISING AT LEAST ONE HYDROGENATION AGENT OF THE GROUP OF NICKEL, PLATINUM, PALLADIUM, RUTHENIUM AND RHODIUM AND THREE-DIMENSIONAL CRYSTALLINE ZEOLITIC MOLECULAR SIEVE HAVING A PORE DIAMETER LARGE ENOUGH TO ADSORB ORTHO-DIETHYLBENZENE, AN ALKALI METAL CONTENT OF LESS THAN 3.5 WEIGHT PERCENT ON A SOLIDS BASIS, AN SIO2/AL2O/3 MOLAR RATIO OF AT LEAST 7.0. SAID CONTACT AND REACTION BEING CONTINUED UNTIL THE ALKYLATION ACTIVITY OF THE CATALYST HAS DECREASED, THE IMPROVEMENT WHICH COMPRISES PERIDICALLY CONTACTING A DHYDROGENATING THE CATALYST COMPOSITION AT A TEMPERATURE OF FROM 80*F. TO 572*F. WITH A LIQUID SOLUTION OF HYDROGEN IN A SATURATED HYDROCARBON HAVING FROM 4 TO 12 CARBON ATOMS, SAID SOLUTION CONTAINING AT LEAST 0.1 MOLE PERCENT DISSOLVED HYDROGEN, UNTIL THE ALKYLATION ACTIVITY OF THE CATALYST IS IMPROVED.
Claim 2
Dependent Claim
150 words
IN AN ALKYLATION PROCESS IN WHICH AN ALKYLATABLE ORGANIC COMPOUND IS CONTACTED AND REACTED WITH AN ALKYLATION AGENT IN A CATALYTIC CONVERSION ZONE CONTAINING A CATALYST COMPOSITION COMPRISING AT LEAST ONE HYDROGENATION AGENT OF THE GROUP OF NICKEL, PLATINUM, PALLADIUM, RUTHENIUM AND RHODIUM AND THREE-DIMENSIONAL CRYSTALLINE ZEOLITIC MOLECULAR SIEVE HAVING A PORE DIAMETER LARGE ENOUGH TO ADSORB ORTHO-DIETHYLBENZENE, AN ALKALI METAL CONTENT OF LESS THAN 3.5 WEIGHT PERCENT ON A SOLIDS BASIS, AN SIO2/AL2O/3 MOLAR RATIO OF AT LEAST 7.0. SAID CONTACT AND REACTION BEING CONTINUED UNTIL THE ALKYLATION ACTIVITY OF THE CATALYST HAS DECREASED, THE IMPROVEMENT WHICH COMPRISES PERIDICALLY CONTACTING A DHYDROGENATING THE CATALYST COMPOSITION AT A TEMPERATURE OF FROM 80*F. TO 572*F. WITH A LIQUID SOLUTION OF HYDROGEN IN A SATURATED HYDROCARBON HAVING FROM 4 TO 12 CARBON ATOMS, SAID SOLUTION CONTAINING AT LEAST 0.1 MOLE PERCENT DISSOLVED HYDROGEN, UNTIL THE ALKYLATION ACTIVITY OF THE CATALYST IS IMPROVED.