250万t/a常减压蒸馏装置减压深拔改造  

DEEP-CUT REVAMPING OF 2.5 Mt/a ATMOSPHERIC AND VACUUM DISTILLATION UNIT

作　　者：梁泽涛 刘登峰 王亦成 姜洁 徐彪 Liang Zetao;Liu Dengfeng;Wang Yicheng;Jiang Jie;Xu Biao(CNPC EastChina Design Institute Co.,Ltd.,Qingdao,Shandong,266071;PetroChina Yumen Oilfield Company,Jiuquan,Gansu,735200)

机构地区：[1]中石油华东设计院有限公司,山东青岛266071 [2]中国石油天然气股份有限公司玉门油田分公司炼油化工总厂,甘肃酒泉735200

出　　处：《石油化工设计》2021年第3期4-9,I0001,共7页Petrochemical Design

摘　　要：2016年玉门炼化总厂250万t/a常减压蒸馏装置实施了减压深拔和换热网络优化改造,通过换热网络集成、优化,原油换热终温从260℃提高到310℃;通过对减压塔减压深拔改造,包括润滑油型改造为燃料型,抽真空系统改造,减压炉改造,减压转油线改造等,原油实沸点切割温度达到565℃,减压蜡油收率提高6.47个百分点,优化了催化裂化装置进料,减压渣油收率降低6.86个百分点,降低了延迟焦化装置负荷,提高了全厂经济效益。In 2016,deep-cut revamping and heat exchanger network optimization were carried out on the 2.5 Mt/a atmospheric and vacuum distillation unit in Yumen refinery.The inlet temperature of crude furnace was increased from 260℃to 310℃after the integration and optimization of heat exchanger network.Through the deep-cut revamping of vacuum tower including the transformation from lubricating oil type to fuel type,the vacuum ejector system,the vacuum furnace and the vacuum transfer line,the TBP cut point of crude reached 565℃,the yield of VGO was improved by 6.47%,thus optimizing the feed to FCC unit.The yield of VR was decreased by 6.86%,reducing the load of DCU and improving the economic benefit of the refinery.

关 键 词：减压深拔 抽真空 拔出率 

分 类 号：TE6[石油与天然气工程—油气加工工程]