作　　者： ; ; ;

机构地区： 华南理工大学化学与化工学院传热强化与过程节能教育部重点实验室

出　　处： 《炼油技术与工程》 2006年第2期19-22,共4页

摘　　要： 以国内两套典型的分别为可调循环比和传统工艺流程的延迟焦化装置作为研究背景,借助三环节能量系统综合优化方法,根据延迟焦化两种工艺流程各自的特点,分别对加热炉对流段和辐射段热负荷分配、分馏塔操作、换热流程、装置自产蒸汽量等进行分析比较,探讨不同工艺流程对装置整体用能的影响。分析结果表明,工艺流程的不同及原料渣油换热流程的差别对于装置稳定操作、加热炉用能、分馏塔取热、换热流程安排、自产蒸汽的温度和压力等有着不同程度的影响。相关焦化流程的对比分析对焦化装置的流程选择及设计优化有着十分重要的理论与现实意义。 On the basis of two typical delayed coking units, i.e. a conventional delayed coker and a delayed coker with flexible recycle ratio, the heat duties of the convection and radiation sections of furnace, fractionator operation, heat exchange trains and steam produced in the unit are compared and the impact of different processes on total energy utilization is studied through tri-loop energy optimization and analysis of features of each delayed coking process. The study shows that the different delayed coking processes and vacuum residue heat exchange options have different impacts on unit operation, furnace energy requirement, heat removed from fractionator, heat exchange design as well as pressure and temperature of steam produced. Analytical comparison of delayed coking processes is very important in process selection and design optimization.

关 键 词： 延迟焦化装置 可调循环比 用能分析 换热网络 分馏塔 加热炉

领　　域： [石油与天然气工程] [化学工程]