减压深拔强化分馏技术的工艺研究  

Process Research on Deep Vacuum Distillation and the Intensified Distillation Technology

作　　者：隋学芳 刘长舒 徐艳丽 Sui Xuefang;Liu Changshu;Xu Yanli(CNOOC Petrochemical Engineering Co.,Ltd.,Qingdao 266101,China)

机构地区：[1]中海油石化工程有限公司,山东青岛266101

出　　处：《山东化工》2018年第15期114-115,共2页Shandong Chemical Industry

摘　　要：提高进料汽化率、避免油品结焦和强化蒸馏技术是从工艺角度出发提高减压深拔程度的有效方法。低压降、低温降的转油线设计和采用喷嘴进料是提高汽化率的有效措施;控制减压装置的结焦重点在于控制油品在减压炉和减压塔内构件结焦,塔内构件结焦重点在于防止洗涤段结焦,保证洗涤段下部最小洗涤油流量。常压渣油掺入催化油浆或富含芳烃的油进入减压塔的流程可有效提高减压深拔程度。Increasing the feed vaporization rate,avoiding the coking of oil products and the intensified distillation technology are effective methods to improve the degree of deep vacuum distillation from the technological point of view. Design of transfer line with low temperature drop and low pressure drop and the use of nozzle feeding are effective measures to increase the vaporization rate; the focus of the control of the decompression device＇s coking is to control the coking of the oil components in the vacuum furnace and the vacuum tower internals,and the focus of the coking of the tower internals is to prevent coking in the washing section and ensuring the minimum wash oil flow in the lower section of the washing section. The process of atmospheric residue incorporation of FCC decent oil or aromatic-rich oil into the vacuum tower can effectively increase the degree of deep vacuum distillation.

关 键 词：减压深拔 汽化率 结焦 强化蒸馏 

分 类 号：TE624.2[石油与天然气工程—油气加工工程]