焦炉煤气制天然气工艺中甲烷化的仿真系统

Simulation of Methanation Reaction for Substitute Natural Gas Production by Coke Oven Gas

焦炉煤气制天然气对拓宽天然气的供应渠道和提高焦炉煤气的清洁利用效率具有重要意义,与焦炉煤气制甲醇等相比,有能源利用率高、耗水量低、无二氧化碳排放等优势。为了提高能源利用率,提出了焦炉煤气制天然气专利工艺,建立了首套焦炉煤气甲烷化合成天然气全流程工业试验装置。甲烷化催化剂及配套工艺是项目的核心部分,因此对甲烷化反应进行准确的仿真计算,对于指导项目设计和生产操作有着重要意义。通过建立甲烷化反应的数学模型,并运用化工动态流程仿真优化系统(Dynamic Simulation&Optimization System,DSO)平台对工业化装置和工业试验装置进行了全过程仿真。实验结果表明,整个过程能够很好地反映装置正常工况时的运行情况。

It is important that Coke oven gas to natural gas can widen the supply channels of natural gas and improve the clean efficiency of using Coke oven gas.It has higher energy efficiency,lower water consumption than coke oven gas-to-methanol,and without carbon dioxide emissions.We proposed a patented process of coke oven gas to natural gas,and completed the first set of industrial test equipments＇ 1000-hour non-stop working,in which coke oven gas was methanated into natural gas.Because methanation catalyst and its supporting technology are the core of the project,accurate simulatione for the methanation reaction is significant to instruct both the project design and production operations.Through building the mathematic model of methanation reaction and using the Dynamic Simulation Optimization System（DSO）,the industrial equipment and industrial test equipment were simulated.The result of application indicates that the whole simulation process can reflect the running of the equipment under normal conditions.