PROCESS FOR PRODUCING OLEFIN POLYMER

The purpose of the present invention is provite a process for producing an olefin polymer, which can produce an olefin polymer having a higher molecular weight even in the presence of hydrogen and can obtain an olefin polymer having good powder characteristics by lowering hydrogen concentration efficiently in polymerizing an olefin in the presence of hydrogen by use of a gas phase reaction vessel. There is provided a process for producing an olefin polymer comprising the steps of: using a gas phase reaction vessel; polymerizing an olefin by use of a catalyst for olefin polymerization in the presence of hydrogen; adding a hydrogenation catalyst into the gas phase reaction vessel; and adding a polymerization activity depressant. 本发明提供制备烯烃聚合物的方法，其通过有效降低氢气存在下使用气相反应器聚合烯烃中的氢浓度，即使在氢气存在下也可以制备具有较高分子量的烯烃聚合物，并且可以得到具有良好粉末性能的烯烃聚合物。提供制备烯烃聚合物的方法，包括以下步骤：使用气相反应器；在氢气存在下使用烯烃聚合催化剂聚合烯烃；向气相反应器中加入氢化催化剂；和加入聚合活性抑制剂。