通过总结DMTO与SHMTO两套工业化装置的运行情况，着重从反应器-再生器（反再两器）结构、反再两器压力平衡、反应系统热量平衡、装置物料消耗和催化剂5个方面进行了对比分析。结果表明，反再两器结构的差异对装置能耗和催化剂在两器间循环影响最大；进急冷塔前产品气用于产4.5和1.0 MPa饱和蒸汽可显著提高甲醇反应放出热量的利用率，极大地减轻水系统冷却负荷，节能效果明显；同时，改善催化剂的催化性能可进一步提高目的产品收率并降低装置能耗。

Through summarizing the operating situations of a DMTO industrial plant and a SHMTO industrial plant, a comparative analysis is made from five aspects including the structure of the reactor and regenerator, pressure balance of the reactor and regenerator, heat balance of reaction system, material consumption of the plant and the catalyst.It is shown that the structural difference of the reactor and regenerator between two plants has the greatest impact on the energy consumption of the plants and the circulation of the catalyst between the reactor and the regenerator.If the product gas before entering the quench tower is used to produce 4.5 MPa and 1.0 MPa saturated steam, the utilization rate of the heat released by the methanol reaction can be significantly improved, greatly reducing the cooling load of water system, showing an obvious energy-saving effect.Furthermore, an improved catalytic performance of the catalyst can further increase the yield of the target product and reduce the energy consumption of the plant.