METHOD OF LIQUID-PHASE ALKYLATION OF AROMATIC HYDROCARBON BY USING beta -ZEOLITE

Title:

METHOD OF LIQUID-PHASE ALKYLATION OF AROMATIC HYDROCARBON BY USING beta -ZEOLITE

Document Type and Number:

WIPO Patent Application WO1996004225

Kind Code:

A1

Abstract:

A method of liquid-phase alkylation of aromatic hydrocarbon by conducting a liquid-phase reaction of an aromatic hydrocarbon with a C2-C4 olefin in a fixed-bed reactor packed with a beta -zeolite catalyst at a temperature of 100-300 DEG C in a vapor-liquid descending parallel-flow system in the following trickle-bed zone: rho l.ul.{( sigma water/ sigma )( rho water/ rho l)<2>}<1/3>(kgm<-2>s<-1>) < 20 and rho g.ug.{ rho air. rho water/( rho g. rho l)}<1/2>(kgm<-2>s<-1>) < 5 wherein rho l, rho g, rho air, and rho water (kgm<-3>) represent respectively the liquid density of aromatic hydrocarbon, the gas density of olefin, the gas density of air, and the liquid density of water; sigma and sigma water (Nm<-1>) represent respectively the surface tension of aromatic hydrocarbon and that of water; and ul and ug (ms<-1>) represent respectively the superficial velocity of aromatic hydrocarbon and that of olefin.

Inventors:

ISHIDA HIROSHI (JP)
TAKAMATSU YOSHIKAZU (JP)

Application Number:

PCT/JP1995/001434

Publication Date:

February 15, 1996

Filing Date:

July 19, 1995

Export Citation:

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Assignee:

ASAHI CHEMICAL IND (JP)
ISHIDA HIROSHI (JP)
TAKAMATSU YOSHIKAZU (JP)

International Classes:

C07C2/66; (IPC1-7): C07C15/02; B01J29/70; C07B61/00; C07C2/66

Foreign References:

JPH03181424A	1991-08-07
US5227558A	1993-07-13
EP0432814A1	1991-06-19

Other References: