Yan ’an Oil Chemical Plant 200000 Tons/year Discharge System Modification Of Polypropylene Plant

Yan ’an oil chemical plant 200000 tons/year polypropylene device was put into production in May 2009, is the second set of continuous process polypropylene device in shaanxi province, the device using the second generation of localization of polypropylene with loop 2-ring tube liquid phase bulk polymerization process. Because of the complexity of the device, the device in the production process, often unplanned shutdown. Comply with the patent to provide operational guidelines and domestic traffic operation, stop, the density of start up process and abnormal failure conditions must be a lot of polymer grade propylene gas to the torch.The author the process design for the device of this type unit propylene recovery system was analyzed, the feasible improvement measures are put forward. Through local technical renovation, maximize the recovery of propylene, is solved successfully in the abnormal condition of a large number of polymer grade propylene recovery problem, and simple operation, less investment. The results of the study on the domestic liquid phase method of ontology technology with loop polypropylene device has a certain reference and reference.The innovation of this study lies in: according to the production process of some problems, put forward the feasible solution, and the economic benefit is remarkable.