先进过程控制在大型水煤浆气流床气化炉的应用  

Application of advanced process control on large coal water slurry entrained flow gasifier

作　　者：鲍金源 黄从军 刘臻 安海泉 Bao Jinyuan;Huang Congjun;Liu Zhen;An Haiquan(Yulin Chemical Industry Co.,Ltd.,CHN Energy,Yulin Shaanxi 719319,China;National Institute of Clean and Low Carbon Energy,CHN Energy,Beijing 102211,China)

机构地区：[1]国能榆林化工有限公司,陕西榆林719319 [2]北京低碳清洁能源研究院,北京102211

出　　处：《煤化工》2025年第1期17-21,31,共6页Coal Chemical Industry

摘　　要：大型煤气化技术是煤炭清洁高效利用的关键技术之一,也是实现我国“双碳”目标的关键途径之一;但因其工艺复杂、系统延时性大、耦合性强,导致气化系统稳定性不高,且经济性难以提升。对1台超大型水煤浆气流床气化炉开展了先进过程控制设计,分别开发了氧煤比和水系统先进过程控制(APC)2套控制器模型,并投入使用。应用结果显示:气化炉APC投用后,关键被控回路的方差值相对投用前平均降低了49.53%;比煤耗平均值由投用前的644.72 kg/[1000 m^(3)(CO+H2)]降至636.43 kg/[1000 m^(3)(CO+H_(2))],降幅1.29%,实现了气化炉的“减碳增效”。Large-scale coal gasification technology is one of the key technologies for clean and efficient utilization of coal,as well as a crucial pathway for achieving China’s“dual carbon”goals.However,due to its complex process,large system delay and strong coupling,the stability of the gasification system is not high and the economy is difficult to be improved.Advanced process control(APC)design was carried out on a super-large coal water slurry entrained flow gasifier.And two sets of control models,oxygen-coal ratio APC controller and water system APC controller,were developed respectively and put into operation.The application results showed that,after the implementation of the gasifier APC,the stability of the gasification system was improved,with the variance of key controlled loop decreased by an average of 49.53%compared with the one before the implementation.In addition,the economic index of the gasifier was significantly improved,with the average specific coal consumption decreasing from 644.72 kg/[1000 m^(3)(CO+H2)]before the implementation to 636.43 kg/[1000 m^(3)(CO+H_(2))],a reduction of 1.29%,achieving“carbon reduction and efficiency enhancement”for the gasifier.

关 键 词：水煤浆气化炉 先进过程控制 氧煤比 比煤耗 稳定性 经济性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TQ545[自动化与计算机技术—控制科学与工程]