Alkylation of organic aromatic compounds

Patent · Sun Jan 01 00:00:00 EST 1989

OSTI ID:867046

Smith, Jr., Lawrence A. ^[1]

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1. (Houston, TX)

Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C.sub.2 to C.sub.10 olefin in the catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 80.degree. C. to 500.degree. C., using as the catalyst a mole sieve characterized as acidic or an acidic cation exchange resin. For example, ethyl benzene is produced by feeding ethylene below the catalyst bed while benzene is conveniently added through the reflux in molar excess to that required to react with ethylene, thereby reacting substantially all of the ethylene and recovering benzene as the principal overhead and ethyl benzene in the bottoms.

• Research Organization: CR & L/NEOCHEM JOINT VENTURE
• DOE Contract Number: FC07-80CS40454
• Assignee: Chemical Research & Licensing Company (Houston, TX)
• Patent Number(s): US 4849569
• OSTI ID: 867046
• Country of Publication: United States
• Language: English

Related Subjects

alkylation
organic
aromatic
compounds
alkylated
catalytic
distillation
catalyst
structure
serves
component
contacting
compound
10
olefin
bed
25
50
atmospheres
pressure
temperatures
range
80
degree
500
mole
sieve
characterized
acidic
cation
exchange
resin
example
ethyl
benzene
produced
feeding
ethylene
below
conveniently
added
reflux
molar
excess
required
react
reacting
substantially
recovering
principal
overhead
bottoms
aromatic compound
acidic cation
catalyst structure
sieve characterized
molar excess
mole sieve
principal overhead
recovering benzene
reacting substantially
catalytic distillation
cation exchange
aromatic compounds
exchange resin
catalyst bed
ethyl benzene
organic aromatic
conveniently added
feeding ethylene
distillation component
/585/203/999/