合成氨变换过程故障特性仿真  

Dynamic simulation of conversion process in ammonia production under abnormal conditions

作　　者：田文德[1,2] 王春利[1] 李传坤[1] 张卫华[1] 

机构地区：[1]中国石油化工股份有限公司青岛安全工程研究院化学品安全控制国家重点实验室,山东青岛266071 [2]青岛科技大学化工学院,山东青岛266042

出　　处：《现代化工》2011年第8期78-82,共5页Modern Chemical Industry

基　　金：国家"863"计划资助项目(2009AA04Z133);山东省自然科学基金资助项目(ZR2009BM033)

摘　　要：以CO和水蒸汽反应转化为氨合成的原料——氢气的变换过程为研究对象,建立了合成氨变换过程的非线性动态数学模型。重点对其中的变换炉、分离器和废热锅炉进行了研究,进行了故障状态下的动态特性模拟,着重分析了断高压蒸汽、高压蒸汽带水和断仪表空气3种故障情况,给出了正常状态和故障状态下的模拟结果。计算结果表明,所建模型精确合理,响应特性满足故障模拟的要求。Shift conversion process involves the reaction of carbon monoxide and steam to produce hydrogen, one of main syngas for synthetic ammonia production. Its nonlinear mathematic model is built based on partial data from literatures in this paper. Reactor, product separator and waste heat boiler are focused. And dynamic simulation under abnormal conditions is carried out. The faults such as shutdown of high pressure steam, water entrainment of high pressure steam, and air stop are highlighted. The normal and abnormal simulation results with these faults are given. The results show that this model has a high precision and can meet with the fault simulation requirements.

关 键 词：合成氨 变换 动态模拟 故障 

分 类 号：TQ028.13[化学工程]