“…The most troublesome case is switching to low-reactivity solid fuels like anthracite or coke. In order to ensure reasonable stability of combustion and fuel burnout in a wide range of operational parameters, the significant modification of boilers is required. , The other solution is using different additives in order to improve ignition properties of such fuels. The common solution is using traditional catalysts based on Ca, , Fe, , Cu, and Ce in the form of oxides , and precursors .…”