催化重整装置轻石脑油生产戊烷发泡剂的工业实践

INDUSTRIAL PRACTICE OF PRODUCTING PENTANE FOAMING AGENT USING LIGHT NAPHTHA BY CATALYTIC REFORMING UNIT

中国石化青岛石油化工有限责任公司(简称青岛石化)250 kt a催化重整装置的分馏塔塔顶拔出的轻石脑油含有较多的C 5烷烃,可以作为生产戊烷发泡剂的原料。通过对轻石脑油生产汽油调合组分的工艺流程的参数改进,利用轻石脑油为原料实现了戊烷发泡剂的工业生产。工业试验结果表明:通过预加氢单元蒸发塔和分馏塔工艺参数调整,改进后所生产的戊烷发泡剂产品质量符合国家标准GB T 22053—2008《戊烷发泡剂》中规定的指标要求,同时通过对重整装置工艺操作条件变更情况和产品存储及运输的分析,青岛石化生产戊烷发泡剂对设备平稳运行和装置安全性没有影响。以轻石脑油生产戊烷发泡剂的技术可提高产品的附加值,实现资源的合理利用。

The light components of naphtha extracted from the top of fractionation tower of the 250 kt a catalytic reforming unit in SINOPEC Qingdao Petrochemical Co.Ltd.(Qingdao Company)contained a high content of C 5 alkanes,which could be used as raw material for the production of pentane foaming agent.The industrial production of pentane foaming agent using light naphtha as raw material was realized by adjusting the process parameters of naphtha as blending component of gasoline.The results of industrial test demonstrated that by adjusting the process parameters of evaporation tower and fractionation tower in pre-hydrogenation unit,the product quality of pentane foaming agent produced under the improved process conditions could meet the index requirements specified in the China National Standard“Pentane Foaming Agent(GB T 22053—2008)”.At the same time,the production of pentane foaming agent in Qingdao Company had no effect on the smooth operation of the equipment and the safety of the units,according to the analysis of the operating condition changes in reforming units and the storage and transportation of products.The technology of producing pentane foaming agent from naphtha could improve the added value of products and realize the rational utilization of resource.