| abstract |
[PROBLEMS] To coarsely collect particulate matter (PM) discharged during combustion of coal, and to collect particulate matter for coal addition to reduce the amount of PM released into the atmosphere that adversely affects the human body. An agent and a coarsening method are provided. A particulate material coarsening agent for coal addition contains an Mg-based compound, Ca-based compound, Fe-based compound, Al-based compound, or Si-based compound as a main component. It is preferable that the particulate coarsening agent for coal addition contains 70 mass% or more of the main component compound with respect to the total amount of the coarsening agent. [Selection figure] None |