Example image of eyePlorer eyePlorer map for 'Wood gas': Biomass Coal Gasification Producer gas Syngas Wood gas generator Carbon dioxide Carbon monoxide Hydrogen Methane Polycyclic aromatic hydrocarbon Pyrolysis Tar Fuel cell Cracking (chemistry) Scrubber Heat of combustion Internal combustion engine World War II Fischer–Tropsch process Gustav Bischof LZ 127 Graf Zeppelin Natural gas Georges Imbert Biogas Ilario Bandini Matkahuolto Planet Mechanics Biofuel in the United States Volvo PV51 Mitigation of peak oil Coke (fuel) Woodchips Thermal depolymerization Charcoal Diesel generator Stove Housetrucker Micro combined heat and power The Colony (TV series) Sweden during World War II Union Army Balloon Corps Alternative fuel vehicle Diesel engine