炼厂燃料气回收LPG过程设计与控制研究

石油炼制与化工 ›› 2019, Vol. 50 ›› Issue (2): 100-105.

炼厂燃料气回收LPG过程设计与控制研究

商先永¹,薛长勇¹,杨义磊¹,钟旺²,朱敏燕¹,孙兰义¹

1. 中国石油大学（华东）重质油国家重点实验室
2. 万华化学集团股份有限公司

收稿日期:2018-06-11 修回日期:2018-09-14 出版日期:2019-02-12 发布日期:2019-02-25
通讯作者: 孙兰义 E-mail:lanyi_sun@hotmail.com; sunly@hdpu.edu.cn
基金资助:

DESIGN AND CONTROL OF LPG RECOVERY PROCESS FROM REFINERY FUEL GAS

#br#

Received:2018-06-11 Revised:2018-09-14 Online:2019-02-12 Published:2019-02-25
Supported by:

摘要/Abstract

摘要： 以某炼油厂燃料气回收液化石油气（Liquefied Petroleum Gas，LPG）为对象，分别对3种LPG回收流程进行了研究。在稳态模拟的基础上，以年总费用为优化目标，优化了各流程的主要工艺参数。结果表明，隔壁塔流程较另外两种流程的年总费用分别降低37.66%和11.35%，表现出较大的经济优势。此外，对炼油厂燃料气回收LPG隔壁塔流程的动态特性进行了研究，提出的四点温度控制结构能够有效地抵抗进料扰动，具有良好的可控性。由此可见，隔壁塔在炼油厂燃料气回收LPG工艺中具有非常高的应用潜力。

关键词: 液化石油气, 过程设计, 隔壁塔, 动态控制

Abstract: Three recovery processes of LPG from fuel gas in a refinery are studied. On the basis of steady state simulation, the main parameters of each process were optimized, considering the minimum annual total cost as the objective function. The results showed that the process with dividing wall column can achieve 37.66% and 11.35% savings of annual total cost compared with the other two processes, indicating a greater economic advantage. Moreover, the dynamic characteristics of the dividing wall column process of LPG recovery from the refinery fuel gas were investigated. The proposed four-point temperature control structure can effectively handle the feed disturbance and has a good controllability. Therefore, the application of dividing wall column in the process has a very great potential.

Key words: LPG, process design, dividing wall column, dynamic control

中图分类号:

商先永薛长勇杨义磊钟旺朱敏燕孙兰义. 炼厂燃料气回收LPG过程设计与控制研究[J]. 石油炼制与化工, 2019, 50(2): 100-105.

[1]	李鲁闽郭廉洁孙兰义田原宇. 反应吸收合成月桂酸甲酯过程设计及控制研究[J]. 石油炼制与化工, 2016, 47(11): 48-55.
[2]	高景山杨剑张英凌昊. 分壁精馏塔分离石脑油芳烃抽提原料的模拟研究[J]. 石油炼制与化工, 2015, 46(8): 54-60.
[3]	韩来喜. 煤直接液化工业示范装置运行情况及前景分析[J]. 石油炼制与化工, 2011, 42(8): 47-51.
[4]	司品宪杨丽. 液化气铜片腐蚀不合格原因分析[J]. 石油炼制与化工, 2009, 40(3): 61-64.
[5]	周建华王新军. 液化气脱硫醇工艺完善及节能减排要素分析[J]. 石油炼制与化工, 2008, 39(3): 51-57.
[6]	柯明许赛威刘成翠宋昭峥. 液化石油气脱硫醇技术进展[J]. 石油炼制与化工, 2008, 39(3): 22-27.