【作者】 李天越； 徐成裕； 隆建； 范琛； 钱锋；

【Author】 Tianyue Li;Chengyu Xu;Jian Long;Chen Fan;Fen Qiana;East China University of science and technology;Sinopec Zhenhai Refining & chemical company;

【机构】 华东理工大学； 中国石化镇海炼化分公司；

【摘要】 在催化裂化装置的反应再生单元中,再生器作为控制催化裂化反应活性以及反应温度的重要媒介,是催化裂化工艺中重要的组成部分。由于再生器中包含了气固相强湍流以及相间强烈的物质和能量传递,为了更好的控制烧焦产生的热量以及烧焦反应的深度,一个耦合了详细气固相过程以及能量传递过程的再生器动态模型是实现对再生器未来状态预测的核心。针对具有强耦合,多控制变量,高复杂度的催化裂化再生过程,本文针对某工业催化裂化装置的第一再生器建立了基于反应机理以及气固相间传质过程的动态装置模型,并重点设计了基于传质过程的能量传递过程,并考察了其准确性及可靠性。更多还原

【Abstract】 Reaction-regeneration unit is the main facilty in the fluid catalytic cracking unit. Regenerator is an important part of the catalytic cracking process, because it can control the catalytic cracking reaction activity and reaction temperature. In the regenerator, it contains strong gas-solid turbulence and strong material and energy transfer between phases. In order to predicting the future state of regenerator and better controling the heat generated by decoking and the depth of de-coking reaction, a dynamic model of regenerator coupled with detailed gas-solid process and energy transfer process is the core. In this paper, a dynamic regenerator model based on reaction mechanism and gas-solid phase mass transfer process was established for the regenerator of an industrial catalytic cracking unit, and the energy transfer process based on mass transfer process was mainly designed, and its accuracy and reliability were investigated.更多还原