130×10^(4)t/a加氢裂化高压换热器优化设计  

Optimal Design of 130×10^(4) t/a High Pressure Hydrocracking Heat Exchanger

作　　者：张运虎 苏赞澎 闫虹 李长东 ZHANG Yunhu;SU Zanpeng;YAN Hong;LI Changdong(Refinery of Liaoyang Petrochemical Company)

机构地区：[1]辽阳石化公司炼油厂,111000 [2]中国昆仑工程有限公司 [3]辽阳石化公司研究院

出　　处：《石油石化节能》2021年第2期26-30,I0005,共6页Energy Conservation in Petroleum & PetroChemical Industry

摘　　要：辽阳石化公司加氢裂化装置由于建造时间早,经过多次改造,高压部分换热流程不合理,其中一台高压换热器E1102未利用,造成能量损失,增加装置能耗。通过流程模拟软件Aspen Plus设计两种E1102利用方案,分别是并联与串联,模拟计算将E1102并联时,原料油换热后温度提高了23.3℃,加热炉负荷降低1.84 MW,高压空冷冷却温度降低4.1℃,一年可节约370万元;将E1102串联时,原料油换热后温度提高了27.9℃,加热炉负荷降低2.7 MW,高压空冷冷却温度降低6℃,一年共节约544万元。两种方案都降低了高压空冷冷却后的温度,同时解决了装置夏季高负荷生产时高压空冷后温度过高的瓶颈问题,并对比两种方案优劣,为后期改造提供参考。The hydrocracking unit of Liaoyang Petrochemical Company was built early,and the heat exchange process of high pressure part was unreasonable after many transformations.One of the high pressure heat exchangers,E1102,was not used,which caused energy loss and increased the energy consumption of the unit.Through the process simulation software Aspen Plus,two utilization schemes of E1102 were designed,namely,parallel connection and series connection.When E1102 was connected in parallel in simulation calculation,the temperature of raw oil after heat exchange was increased by 23.3℃,the heating furnace load was reduced by 1.84 MW,and the temperature of high-pressure air cooling was reduced by 4.1℃,which could save about 3.7 million yuan a year.When E1102 is connected in series,the temperature of feedstock oil after heat exchange is increased by 27.9℃,the heating furnace load is reduced by 2.7 MW,and the cooling temperature of high pressure air is reduced by 6℃,saving 5.44 million yuan a year in total.Both schemes reduce the temperature after high pressure air cooling,and solve the bottleneck problem of high temperature after high pressure air cooling in high load production of the plant in summer.The advantages and disadvantages of the two schemes are compared to provide reference for later transformation.

关 键 词：加氢裂化 高压换热器优化 Aspen Plus 模拟 

分 类 号：TE965[石油与天然气工程—石油机械设备]