发明名称 |
PROCESS FOR THE INTRODUCTION OF A POLYMERISATION CATALYST INTO A GAS-PHASE FLUIDISED BED |
摘要 |
<p>The present invention relates to a process for polymerisation in a gas-phase fluidised bed, and in particular to a process for the introduction of a polymerisation catalyst in solid form into a gas-phase fluidised bed, which process comprises using an injection device having an inner tube of internal cross-sectional area of 10 to 100 mm 2 and an outer tube forming an annulus around said inner tube with a cross-sectional area of 1 to 10 times the internal cross-sectional area of the inner tube, and passing said polymerisation catalyst and a carrier gas through the inner tube and into the gas-phase fluidised bed at a linear velocity of said carrier gas of 4 to 14 m/s and passing a shielding gas through the outer tube and into the gas-phase fluidised bed at a linear velocity of said shielding gas of 1 to 10 times the linear velocity of the carrier gas through the inner tube, wherein no cooled recycle process gas is provided to the injection device.</p> |
申请公布号 |
EP2334420(B1) |
申请公布日期 |
2013.11.06 |
申请号 |
EP20090817280 |
申请日期 |
2009.09.21 |
申请人 |
INEOS COMMERCIAL SERVICES UK LIMITED |
发明人 |
BORDAIS, BRUNO;KEMP, CHRISTOHPER JAMES;LAILLE, JOSE ANDRE;LEMESLE, WILLY |
分类号 |
B01J8/00;B01J8/24;B01J19/26;C08F2/34 |
主分类号 |
B01J8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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