[en] The drive to find alternative fuels to replace such hydrocarbons as diesel and petrol has resulted in an excess of different fuels-few of which are commercially available in large quantities. As fuels, by their very nature, must be combustible, the fire, explosion and explosion properties will need to be known. The use of biomass as a source of energy has been further improved in recent years and special interest has been paid to biomass gasification. Due to the increasing interest in biomass gasification, several studies have been proposed in order to explain and understand this complex process, and the design, simulation, optimization and process analysis of gasifiers have been carried out. This paper reviews several Biomass gasification studies. (author)