利用Aspen Plus模拟软件，通过搭建自主甲烷化工艺模型，选取典型甲烷化装置入口原料气，依次进行负荷波动、新鲜原料气组分波动等波动工况对绝热甲烷化装置影响的模拟研究。研究结果表明，负荷增加导致反应热点温度升高，可以通过合理的反应热点温度选取、循环压缩机选型来解决。一定范围内的氢碳比降低基本不会对反应热点温度产生影响，但会影响催化剂寿命，需严格防止氢碳比过低现象发生。氢碳比过高对产品热值及下游用户不利，通过向辅甲烷化部分补碳可以快速控制产品品质，同时可提高氢碳比设计上限。

The influences of load fluctuation,fresh feedstock gas composition fluctuation and other fluctuating working conditions on the adiabatic methanation facility are simulated in turn by using the Aspen Plus simulation software through establishing the independent methanation process model and selecting typical influent feedstock gas of methanation facility.The simulation results show that the growth of load will cause the adiabatic methanation reaction temperature to lift,which can be solved by choosing the reasonable reaction hot-spot temperature and circulation compressor.The reducing ratio of hydrogen to carbon within a certain range can hardly impact the reaction hot-spot temperature but will influence the service life of catalyst.Too low ratio of hydrogen to carbon must be strictly avoided.Conversely,over high ratio of hydrogen to carbon has adverse impact on the product heat value and users.It can be solved by filling carbon to supplementary methanation while the design upper limit of ratio of hydrogen to carbon can be increased.