Alkylation process

Abstract

Abstract HYDROCARBON OLEFINS ARE CONVERTED TO HIGHER BOLING PRODUCTS COMPRISING POLYMERS AND OLIGOMERS OF THE OLEFIN AND ALKYLATES OF THE OLEFIN WITH PARAFFNIC MYDROCARBONS IN THE PRESENCE OF A GROUP VIII NOBLE METAL DISTENDED ON A SYNTHETIC ZEOLITE, I.E., AND ALUMINOSILICATE MOLECULAR SIEVE, THAT HAS BEEN PRETREATED WITH HYDROGEN AT CONDITIONS TO IMPART SELECTIVE POLYMERIZATION OR ALKYLATION ATIVITY THERETO. IN A SPECIFIC EMBODIMENT, ETHYLENE IS POLYMERIZED TO LOW BOILING OLIGOMERS COMPRISING DIMERS, TRIMERS, TETRAMERS, ETC. BY CONTACTING THE ETHYLENE UNDER POLYMERIZATION CONDITIONS WITH A PALLADIUM CATALYST DEPOSITED ON A Y MOLECULAR SIEVE THAT HAS BEEN PRETREATED WITH HYDROGEN AT A TEMPERATURE FROM ABOUT 200* TO 900* F. OR IS POLYMERIZED TO SOLID POLYMER WHEN THE HYDROGEN TREATMENT IS PERFORMED AT A TEMPERATURE FROM O* TO 100* F. THE ETHYLENE IS ALSO REACTED UNDER ALKYLATION CONDITIONS WITH A PARAFFIN HYDROCARBON BY CONTACTING THE OLEFIN AND PARAFFIN UNDER ALKYLATION CONDITIONS WITH A PALLADIUM DEPOSITED ON A Y MOLECULAR SIEVE THAT HAS BEEN PRETREATED BY CONTACTING WITH HYDROGEN AT A TEMPERATURE OF FROM 100* TO ABOUT 200*F.

Inventors

• 👤 Giovanni Biale

Bibliographic Details