The economic returns of the above four projects is analyzed in the paper,which shows that all the projects can make profits and the Internal Rate of Return(IRR) of methanol plant is the highest.

• 按照经济可行性分析的步骤,对选取的4种焦炉煤气利用项目进行了经济性评价,结果表明,4种焦炉煤气利用项目均可盈利,并且合成甲醇项目的内部收益率最高。