公开(公告)号：US20240360254A1

公开(公告)日：2024-10-31

申请号：US18560119

申请日：2022-06-06

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Ryoichi KOBAYASHI

IPC: C08F110/02 ,  C08F2/01 ,  C08F4/659

CPC classification number: C08F110/02 ,  C08F2/01 ,  C08F4/65912

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 d 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 u 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.

公开(公告)号：US20240239727A1

公开(公告)日：2024-07-18

申请号：US18562433

申请日：2022-05-02

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Ryoichi KOBAYASHI

IPC: C07C2/40 ,  C08F10/02

CPC classification number: C07C2/406 ,  C08F10/02 ,  C07C2527/135 ,  C07C2531/14

Abstract: A method for producing an α-olefin may include (1) continuously introducing an ethylene and a catalyst into a reactor, followed by performing a polymerization reaction to obtain a reaction mixture; and (2) continuously introducing the reaction mixture and a base into a line mixer, followed by performing mixing. The line mixer may have a stirring power in a range of from 30 to 1000 kW·sec/m3 and a number of passes may be in a range of from 5 to 50.