“…However, combustion tests have shown that biomass pyrolysis oils burn efficiently in standard or slightly modified engines with rates similar to those for commercial fuels [38]. Also, Schrö der et al [39] have investigated the use of pyrolysis oils for the production of electricity by diesel engines. However, the most recommendable is to try to favour the cracking of these tars, since they mean a very important obstacle in the refrigeration and cleaning system of the gas used to generate electric power.…”