再生器压力与反再压差选择性控制策略在DCS上的实现与研究-《工业仪表与自动化装置》

文章信息/Info

Title:: Realization and research of selective control strategy of regenerator pressure and reactor regenerator differential pressure in DCS

Author(s):: CHEN Laifu; Coal science and Technology Research Institute Company Limited, Beijing 100013, China

Keywords:: selective control; reactor and regenerator pressure; Yokogawa DCS; configuration; catalytic cracking

摘要:: 催化裂化装置的核心单元反应器和再生器系统的压力控制是一个非常复杂的过程，因为影响两器压力的因素很多，这样就给两器压力的控制带来很多麻烦。但是控制好两器压力，对催化裂化反应、催化剂的再生、主风机的风量和主风机的安全运行等又相当重要。该文引进选择性控制策略，通过在横河DCS上组态，对再生器和反再压力进行选择性超驰控制。这样既能保证正常生产工艺参数的要求，又能保证联锁状态下两器和主风机等核心装置的安全。

Abstract:: The pressure control of the catalytic cracking unit’s core unit reactor and regenerator system is a very complicated process, because there are many factors affecting the pressure of the two devices, which brings a lot of trouble to the pressure control of the two devices. However, controlling the pressure of the two devices is very important for the catalytic cracking reaction, the regeneration of the catalyst, the air volume of the main fan, and the safe operation of the main fan. So we introduce the selective control strategy to control Regenerator pressure and reactor Regenerator differential pressure by configuration on the Yokogawa DCS. This can not only guarantee the requirements of the normal production process parameters, but also ensure the safety of the two devices and the main fan in the interlocked state.