Method and apparatus for production of fuel gas

An apparatus for production of fuel gas, comprising:

• a combustion chamber;
• a fuel gas source which supplies primary fuel gas to said combustion chamber where said fuel gas is heated to a temperature equal to or higher than the boiling point and lower than the flash point;
• a gas pipe having a first end and a second end, said first end communicating with said combustion chamber, said gas pipe defining a gas pipe axis extending from a cross-sectional center of said first end of said gas pipe to a cross-sectional center of said second end of said gas pipe, said gas pipe having at least one inlet hole through which an interior of said gas pipe communicates with an exterior of said gas pipe;
• an outlet pipe, said outlet pipe communicating with said second end of said gas pipe, said outlet pipe having a cross-sectional area perpendicular to said gas pipe axis which is larger than the cross-sectional area of said gas pipe perpendicular to said gas pipe axis;
• and
• an air nozzle, said air nozzle having an entrance end and an exit end, said entrance end communicating with a source of air, said exit end of said air nozzle being positioned in said gas pipe, said air nozzle defining an air nozzle axis extending from a cross-sectional center of said entrance end of said air nozzle to a cross-sectional center of said exit end of said air nozzle, said air nozzle axis being substantially collinear with said gas pipe axis.