延迟焦化装置放空系统余热回收技术应用
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摘要
延迟焦化装置在焦炭塔冷焦工序中产生大量的热量,因其热源不稳定,传统工艺中对这部分热量主要通过冷却水箱进行冷却,故导致大量的热量浪费。为了回收这部分热量,中海石油舟山石化有限公司对2.4 Mt/a延迟焦化装置的放空系统常规流程进行工艺改造,增设蒸汽发生器取代冷却水箱,解决了传统工艺中放空塔空冷、水冷器堵塞的问题。通过对此装置的工艺改造,可以实现放空系统余热的回收利用,每天降低装置能耗537.2×102MJ。
The large amount of heat generated by delayed coking unit in coke tower cooling process is mainly cooled by cooling water tank in traditional process because of the unstable heat source,which results in a large amount of heat waste. In order to recover this part of heat,Zhoushan Petrochemical Co., Ltd. of Zhoushan Petrochemical Co., Ltd. of CNOOC has reformed the bleeding system flow of 2.4 Mt/a delayed coking unit. by adding steam generator instead of cooling water tank to recover waste heat and achieved good results. After modification, the energy consumption can be saved by 537.2 ×102 MJ/d,which is a new process of energy saving and environmental protection.
The large amount of heat generated by delayed coking unit in coke tower cooling process is mainly cooled by cooling water tank in traditional process because of the unstable heat source,which results in a large amount of heat waste. In order to recover this part of heat,Zhoushan Petrochemical Co., Ltd. of Zhoushan Petrochemical Co., Ltd. of CNOOC has reformed the bleeding system flow of 2.4 Mt/a delayed coking unit. by adding steam generator instead of cooling water tank to recover waste heat and achieved good results. After modification, the energy consumption can be saved by 537.2 ×102 MJ/d,which is a new process of energy saving and environmental protection.
引文
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[5]颜峰,谢崇亮,王松涛,等.延迟焦化装置放空冷却系统存在问题及对策[J].炼油技术与工程, 2015, 45(3):60-63.
[6]陈清林.某延迟焦化装置用能分析及改进[J].炼油技术与工程,2003,33(8):58-60.
[2]瞿国华.延迟焦化工艺与工程[M].北京:中国石化出版社,2007:260-261.
[3]丁书文.延迟焦化装置放空系统存在的问题及优化改造[J].中外能源,2016,21(10):84-87.
[4]秦国治,袁士宵.防腐蚀工程[M].北京:中国石化出版社,2013:3-4.
[5]颜峰,谢崇亮,王松涛,等.延迟焦化装置放空冷却系统存在问题及对策[J].炼油技术与工程, 2015, 45(3):60-63.
[6]陈清林.某延迟焦化装置用能分析及改进[J].炼油技术与工程,2003,33(8):58-60.