Currently

biomass is a widely used clean energy source

but the chlorine contained in the biomass will cause ash deposition and corrosion of the biomass boiler's heating surface

which seriously affects safe operation of the boiler. Against this problem

this paper introduces the research progress of precipitation and migration of chlorine in biomass and the corrosion of biomass boiler heating surface

and clarifies the precipitation and migration characteristics of chlorine at different temperatures

the mechanism of chlorine corrosion

as well as the corrosion condition in actual boiler operation. Then

it puts forward several common methods to inhibit chlorine corrosion of biomass boilers

such as biomass fuel pretreatment

biomass and coal co-firing

adding additives with specific components

using materials with good corrosion resistance

adjusting the boiler parameters or rationally arranging the heating surfaces

and so on. It suggests that

in view of the complex and variable status of biomass sources in China

multiple means should be taken to prevent chlorine corrosion on heating surfaces according to the fuel characteristics of different biomass

thus to ensure safe

stable and efficient operation of the biomass boiler.