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对中国石油辽河石化公司采用中国石化集团上海工程有限公司自主开发的SPG工艺(即丙烯液相本体与卧式釜气相本体组合式连续聚合工艺)进行了介绍,并与国内聚丙烯生产工艺进行了技术对比。工业生产实践表明,SPG工艺流程设计合理,在催化剂进料、预聚合及液相本体和卧式釜气相聚合组合技术上均有明显特色;各项技术经济指标显示,SPG工艺在聚丙烯工业中具有较好的推广前景。
China National Petroleum Corporation Liaohe Petrochemical Company with China Petrochemical Group Shanghai Engineering Co., Ltd. independently developed SPG process (that is, the liquid phase body of propylene and horizontal autoclave gas-phase combination of continuous polymerization process) were introduced and the domestic polypropylene production process was carried out Technical comparison. The industrial production practice shows that the SPG process design is reasonable and has obvious characteristics in catalyst feeding, prepolymerization and combination technology of liquid phase bulk and horizontal reactor gas phase polymerization. The technical and economic indexes show that the SPG process in the polypropylene industry Has a good promotion prospects.