【作者】 曹志凯； 解泰瓅； 江青茵； 周华； 宋灿； 牛玉奇； 梁宝剑； 侯刘涛；

【Author】 Cao Zhikai;Xie Taili;Jiang Qinying;Zhou Hua;Song Can;Niu Yuqi;Liang Baojian;Hou Liutao;Department of Chemical and Biochemical Engineering,College of Chemistry & Chemical Engineering,Xiamen University;Research Institute of Henan Energy & Chemical Industry Group;Longyu Coal Chemical Industry Limited Corporation;

【机构】 厦门大学化学化工学院化工系； 河南能源化工集团研究院； 河南龙宇煤化工有限公司；

【摘要】 为了提高Shell粉煤气化装置的运行周期及其实时运行状态的识别,需对该装置进行动态模拟。故本文首先将Shell气化反应器简化为五段全混流反应器串联组合而成的反应器,并根据全混流反应器模型分别建立各段反应器模型,进而将各段模型组合起来形成整个气化炉反应器的动态模型,然后根据实际工业装置的特点确定反应器模型的参数,采用OPC(OLE for Process Control)通讯方式获取该装置的实际煤、氧消耗量及其一些温度、流量等可测量的状态参数,进而利用课题组自主研发平台XD-APC对该所建立的模型进行实时求解,从而实现Shell粉煤气化装置的实时模拟。模拟结果表明:模型求解得到的反应器出口CO、H2及CO2的含量与实际过程合成气中的组成高度吻合,通过该研究为后续的在线优化奠定了基础。更多还原

【Abstract】 In order to improve the operation cycle of Shell pulverized coal gasification unit and identify its running status, dynamic modeling and dynamic simulating for the gasifier are completed in this work. To simplify this process, the coal gasifier is divided into 5 segments and each segment is regarded as a continuous stirred tank reactor(CSTR). In the first segment, only devolatilization and volatile combustion are completed. In addition, coal gasification is considered as in the follow-up segments. Then each segment is modeled as CSTR including conservation of mass, conservation of energy, conservation of momentum, and kinetics of reaction. In turn, models of the five segments are combined as the model of the whole reactor. Some parameters of the model are determinate according the character of the industrial processes. To realize on-line simulation, real-time data of the reactor such as inlet feedstock(coal, oxygen,and steam), temperature and flowrates are obtained by OPC(OLE for Process Control) communication.Proceed to the next step, the real-time data are exchanged with the simulation platform of XD-APC which is developed by our group. And then, the model is solved in the platform of XD-APC. Furthermore, the running status of the gasifier is obtained and analyzed by the simulation results. The CO, H2, and CO2 content in the reactor outlet from the simulation results agree well with the industrial data. By this real-time simulation system, further on-line optimization for Shell pulverized coal gasification can be carried out.更多还原