利用净化后的焦炉煤气在500℃的温度下进行甲烷化反应，通过分股的方式将原料气分别通入2个甲烷化反应器，从1^#反应器反应后的气体与其中一股原料混合后通入2^#反应器中；从2^#反应器反应后的部分气体循环至1^#反应器内，其他的气体通入3^#反应器内将剩余的一氧化碳、二氧化碳进行反应。利用Aspen Plus流程模拟软件对绝热多段甲烷化工艺进行了流程模拟，并优化相关参数。最终操作参数的运行结果显示，一氧化碳转化率为100%，二氧化碳转化率为99.67%，甲烷的含量由35.87%变为63.36%，为后续分离制LNG和氢气创造了条件。

Methanation reaction for purified coke oven gas is carried out at 500℃.Raw gas enters two methanation reactors by two different ways.The reacted gas from the 1^# reactor is mixed with another way of raw gas and then together passes into the 2^# reactor.Part of the reacted gas from the 2^# reactor is circulated into the 1^# reactor and other reacted gas passes into the 3^# reactor to react with the remaining carbon monoxide and carbon dioxide.The adiabatic multistage methanation process is simulated by using Aspen Plus process simulation software and the related parameters are optimized.Finally,the operation results of the operation parameters indicate that the conversion rates of carbon monoxide and carbon dioxide are 100% and 99.67%,respectively,and the methane content increases from 35.87% to 63.36%.This result creates conditions for subsequent separation of LNG and hydrogen.

黄志伟(1994-),女,硕士生