Patent ID: 6555722
Filing Date: 2003-04-29
Classification: C07C,C10G,Y10S

Abstract:
A process for the alkylation of organic aromatic compounds comprising the steps of:(a) feeding a liquid stream containing an organic aromatic compound into a reactor at a point above a bed of solid particulate aromatic alkylation catalyst contained in said reactor; (b) feeding a gaseous stream containing an olefin into the reactor at a point below the bed of solid particulate aromatic alkylation catalyst; (c) countercurrently contacting said organic aromatic compound with said olefin and said solid particulate aromatic alkylation catalyst under conditions of temperature and pressure and an average gas-liquid volume ratio about 1:4 to 10:1 in said bed to react a portion of said organic aromatic compound with a portion of said olefin to produce an alkylated organic aromatic product and to maintain said organic aromatic compound and said alkylated organic aromatic product in said liquid phase and said olefins in said gaseous phase; (d) withdrawing unreacted gaseous olefin from the reactor at a point above said bed of solid particulate aromatic alkylation catalyst; and (e) withdrawing unreacted organic aromatic compound and alkylated organic aromatic product from the reactor at a point below said bed of solid particulate aromatic alkylation catalyst.