Gas-phase polymerization reaction device and olefin polymerization method
A gas-phase polymerization and reaction device technology, which is applied in the field of gas-phase polymerization reaction devices and olefin polymerization, can solve the problems of copolymer deviation from theoretical composition, propylene polymer deviation, etc., and achieve the effect of reliable theoretical guidance
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Embodiment 1
[0053] This example is used to illustrate the gas phase polymerization reaction device and olefin polymerization method according to the present invention.
[0054] use figure 2 The gas phase polymerization apparatus shown carries out the copolymerization of propylene with ethylene and 1-butene. in:
[0055] The volume of the inner cavity of the main reactor 11 is 5 liters;
[0056] The inner diameter of the intake pipe 1 is 6 mm, and the inner diameter of the exhaust pipe 2 is 8 mm;
[0057] The depth of the inner chamber of main reactor 11 is 40cm, the minimum distance from the bottom of the lower port of inlet pipe 1 to the inner chamber of main reactor 11 is 5cm, the lower port of exhaust pipe 2 to the inner chamber of main reactor 11 The minimum distance at the bottom of the tank is 40cm, and the minimum distance from the bottom of the lower end of the stirrer shaft 12 to the inner cavity of the main reactor 11 is 0.1cm;
[0058] The minimum distance L from the stirr...
Embodiment 2
[0068] This example is used to illustrate the gas phase polymerization reaction device and olefin polymerization method according to the present invention.
[0069] Polymerization is carried out in the same manner as in Example 1, except that the mixed gas entering the inner chamber of the main reactor 11 does not contain ethylene, and the molar ratio of 1-butene, propylene and hydrogen is 8:91.7 : 0.3, the polymerization time is 60 minutes, and the exhaust pipe 2 is kept normally open during the polymerization process. After the polymerization was completed, samples were taken to detect the composition of the gas mixture in the inner cavity of the main reactor 11, and the results are shown in Table 1.
Embodiment 3
[0073] This example is used to illustrate the gas phase polymerization reaction device and olefin polymerization method according to the present invention.
[0074] Polymerization was carried out in the same manner as in Example 1, except that the mixed gas entering the inner chamber of the main reactor 11 did not contain ethylene, and the molar ratio of 1-butene, propylene and hydrogen was 20:79.7 : 0.3, the polymerization time was 90 minutes, and the exhaust pipe 2 was kept open during the polymerization process. After the polymerization was completed, samples were taken to detect the composition of the gas mixture in the inner cavity of the main reactor 11, and the results are shown in Table 1.
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