The aim of the course is to learn the basic properties and characteristics of gaseous and solid fuels, conversion and upgrading of solid fuels and biomass. Contents: NATURAL GAS: Natural gas production, natural gas processing, transportation, storage and distribution, liquefied natural gas. LPG: Production, properties and uses of LPG, etc. BIOGAS: Biogas production and collection, biogas properties and uses. SOLID FUELS: Composition, classification of solid fuels, production, combustion of solid fuels. BIOMASS: Biomass characteristics, biomass power generation. SOLID FUELS UPGRADE. Pyrolysis, gasification of solid fuels and biomass, synthesis gas production, Fischer-Tropsch synthesis.