发明名称 |
Process and apparatus for the polymerisation of olefins |
摘要 |
Process for gas phase polymerization of olefins in a fluidized bed reactor by (a) passing a fluidizing gas containing at least one olefin monomer through a fluidized bed of polymer particles in the presence of a polymerization catalyst to produce polymer at a polymer production rate of C Tonnes/hour, (b) withdrawing a first gaseous stream containing solid particles from the top of the reactor, (c) passing the first gaseous stream to a gas/solids separator, separating solid particles therefrom, and forming a second gaseous stream containing residual solid particles, (d) passing a portion of the second gaseous stream to at least one heat exchanger to remove heat of reaction whereby residual solid particles contact the heat exchanger, and (e) recycling a portion of the cooled stream from step (d) as the fluidizing gas in step (a). The heat exchangers have a heat exchange surface area which totals less than 120×C m2. |
申请公布号 |
US9394382(B2) |
申请公布日期 |
2016.07.19 |
申请号 |
US201113988794 |
申请日期 |
2011.12.14 |
申请人 |
INEOS SALES (UK) LIMITED |
发明人 |
Bell Andrew David;Chamayou Jean-Louis;Ramsay Kevin Peter |
分类号 |
C08F2/34;B01J8/24;B01J8/44;C08F10/00;C08F110/02 |
主分类号 |
C08F2/34 |
代理机构 |
Nixon & Vanderhye P.C. |
代理人 |
Nixon & Vanderhye P.C. |
主权项 |
1. A process for the gas phase polymerisation of olefins in a fluidised bed reactor, which process comprises:
a) passing a fluidising gas comprising one or more olefin monomers through a fluidised bed of polymer particles in the presence of a polymerisation catalyst to produce polymer at a polymer production rate of C Tonnes/hour, b) withdrawing a first gaseous stream comprising solid particles from the top of the reactor, c) passing the first gaseous stream to a gas/solids separator, separating solid particles therefrom, and forming a second gaseous stream comprising residual solid particles, d) passing at least a portion of the second gaseous stream to one or more heat exchangers to remove heat of reaction, wherein residual solid particles contact the heat exchanger, and e) recycling at least a portion of the cooled stream from step (d) as the fluidising gas in step (a), wherein the one or more heat exchangers have a heat exchange surface area which totals less than 120×C m2. |
地址 |
Lyndhurst, Hampshire GB |