Under the background of the goal of “carbon peak and carbon neutrality”

environmental protection requirements are becoming increasingly stringent

and methanol as a recognized high-efficiency

clean and lowcarbon fuel has received more and more attention. In order to analyze the feasibility of methanol for boiler fuel

a comprehensive evaluation model of methanol

coal

diesel and natural gas as boiler fuel was established

and the four indicators of energy saving

environmental protection

economy and sociality were considered through analytic hierarchy process(AHP) and entropy weight method(EWM)

and comprehensive evaluation was carried out under five scenarios with different importance of each index. The following conclusions are drawn: the energy saving of methanol is better than that of other fuels

the environmental protection and economy are comparable to natural gas

and the social aspect is second only to coal

which is 3.2 times that of diesel and 2.2 times that of natural gas; in terms of importance

environmental factors first

economic factors and energy-saving factors second

social factors are the weakest importance(scenario 3); the comprehensive evaluation score of methanol as boiler fuel is 0.318 6

which has great advantages compared with natural gas(0.292 9)

coal(0.232 4) and diesel(0.156 1).