采用热力学分析方法,对不同煤气化和天然气转化制合成气技术路线进行了分析。研究了不同工艺路线的损以及效率。结果表明,以煤为原料的单原料系统由于气化技术损较大,导致其效率最低。而考虑“元素互补”与“能量互补”的多原料系统具有较高的效率,相较以煤为原料的单原料系统,其效率从59.49%提高到72.66%。基于分析的角度,项目前期的方案比选过程建议选用该方案作为优选方案,但在决策过程中需同时考虑项目的经济效益。 The thermodynamic analysis method was used to analyze the technical route of syngas with different coal gasification and natural gas conversion. Studied the different process route of the loss and efficiency. The results show that the coal-based single-feed system has the lowest efficiency due to the large gasification loss. However, the multi-material system with “complementary elements” and “energy complements” has high efficiency, and the efficiency is increased from 59.49% to 72.66% compared with the single-material system using coal as raw material. Based on the analysis point of view, the pre-project plan comparison and selection process suggests that the plan be used as the preferred plan, but the economic benefits of the project need to be considered in the decision-making process.