Municipal solid wastes (MSW) are considered as a valuable energy source that can be applied as a secondary (co-combustion) or even primary fuel in a power plant. Torrefaction of MSW caused atmosphere (N2) and synthetic flue gas (mixture of CO2 –~11 v.%, O2 – ~4,35 v.%, and N2– as balance). The pelletization were carried out using a pelletizer with the rotating rollers that are in contact with the matrix. The pressurized co-combustion of hard coal and MSW (5% and 15% by weight) was carried out under total pressure of 3 bar and temperature bed of 850°C. The main component of the experimental setup was a fluidized bed combustor (bubbling regime). The reactor consisted of a stainless steel tube with a reactor diameter of 105 mm and height of 1500 mm. The increase of pressure in combustion chamber caused significant benefits in terms of gaseous pollutants emission. A lower emission of NO (by ~56%) and SO2 (by ~35%) was observed for pressurized combustion.significant benefits related to material stabilization, and reduced chlorine and mercury content. The aim of this paper is to investigate co-combustion of torrefied municipal solid waste and coal in bubbling fluidized bed combustor under atmospheric and elevated pressure. Torrefaction of pelletized (diameter of 6 mm) of MSW were carried out using a rotary kiln reactor under inert