Method for producing α-olefin
AssigneeIdemitsu Kosan Co., Ltd.
InventorRyoichi Kobayashi
Life of this patent
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Abstract
A method may produce an α-olefin and may include: (1) continuously introducing an ethylene and a catalyst into a reactor, then mixing and polymerizing to obtain a reaction mixture; (2) continuously separating the reaction mixture into a gas A and a liquid B in a flasher having a separation drop size dL of formula (1) of 1.0×10−4 m or less: d L = 18 μ v g ( ρ L - ρ V ) , ( 1 ) v being rising speed (m/s) of a gas in the flasher, ρV being density (kg/m3) of the gas A, ρL being density (kg/m3) of the liquid B, g being gravitational acceleration (m/s2), and μ being viscosity (Pa·s) of the gas A; (3) bringing the gas A into contact with a solvent in a scrubber to obtain a gas C containing an unreacted ethylene and a liquid D containing the solvent; and (4) reusing the gas C in a polymerization.
Claims7
A method for producing an α-olefin, the method comprising:
- (1) continuously introducing an ethylene and a catalyst into a reactor, followed by mixing and polymerizing to obtain a reaction mixture;
- (2) continuously separating the reaction mixture into a gas A and a liquid B in a flasher having a separation drop size dL of formula (1) below of 1.0×10−4 m or less:
- d
- L
- =
- 18
-
- μ
-
- v
- g
-
- (
- ρ
- L
- -
- ρ
- V
- )
- ,
- (
- 1
- )
- v being rising speed of a gas in the flasher in m/s, ρV being density of the gas A in kg/m3, ρL being density of the liquid B in kg/m3, g being gravitational acceleration in m/s2, and μ being viscosity of the gas A in Pa·s;
- (3) bringing the gas A into contact with a solvent in a scrubber to obtain a gas C comprising an unreacted ethylene and a liquid D comprising the solvent;
- and
- (4) reusing the gas C in a polymerization reaction.
Dependencies are inferred from the claim text.