Polymerization process

本发明涉及一种烯烃聚合方法，包括使一或多种单体与催化剂体系在气相反应器中接触，所述反应器有充气室和用于从所述反应器中取出循环气和未反应单体并使所述循环气和新鲜单体返回所述反应器的循环系统，所述方法包括以下步骤：(a)使所述循环气冷却形成冷却的循环气；(b)非必需地使所述冷却的循环气与附加循环气合并；和(c)通过所述充气室将所述冷却的循环气注入所述气相反应器中。 The present invention relates to a method to polymerize monomer comprising contacting one or more monomer(s) with a catalyst system in a gas phase reactor having a recycle system, for removing a recycle gas and unreacted monomer(s) from the reactor and returning the recycle gas and fresh monomer(s) to the reactor, and a plenum, the method comprising the steps of: (a) cooling the recycle gas to form a cooled recycle gas; (b) optionally combining the cooled recycle gas with additional recycle gas; and (c) injecting the cooled recycle gas into the gas phase reactor through the plenum.