초록 ▼

For use as a replacement for existing gas to burners, oil having an API gravity of about 10-80 is preheated and mixed with about 0.1 to 1 pound of steam per pound of oil, at a pressure of about 30-150 pounds per square inch gauge. The resulting mixture is heated to a temperature above the condensati

For use as a replacement for existing gas to burners, oil having an API gravity of about 10-80 is preheated and mixed with about 0.1 to 1 pound of steam per pound of oil, at a pressure of about 30-150 pounds per square inch gauge. The resulting mixture is heated to a temperature above the condensation temperature of the mixture, the temperature being approximately in the range of 450°-800°F. The mixture has flow properties which are essentially equivalent to those of gas under the same conditions of temperature and pressure. The mixture is delivered to the nozzle of the gas burner and is burned therein. An apparatus is provided for burning either oil or gas, and includes a gas burner having nozzle means for mixing air and gas, a gas conduit connected thereto, and an oil supply also connected to the burner, the oil supply being fed from an oil vaporizing apparatus as just described above.

대표청구항 ▼

In a process for steam vaporization of a liquid hydrocarbon consisting essentially of oil or naptha having an API gravity of about 10-80 for introduction at a predetermined steam-hydrocarbon nozzle temperature into the nozzle of a burner, said burner being constructed for burning a gas of a predeter

In a process for steam vaporization of a liquid hydrocarbon consisting essentially of oil or naptha having an API gravity of about 10-80 for introduction at a predetermined steam-hydrocarbon nozzle temperature into the nozzle of a burner, said burner being constructed for burning a gas of a predetermined Wobbe number, at a predetermined nozzle gas temperature, the steps which comprise: preheating said liquid hydrocarbon to a preselected temperature so that it is at least partially in the vapor phase, supplying steam in the quantity of about 0.1 to 1 pound of steam per pound of said hydrocarbon, mixing said preheated hydrocarbon with said steam at a pressure of about 30-150 pounds per square inch gauge, heating the resulting mixture to a mixture temperature in the range of 450°to 800°F., said mixture temperature being above the condensation temperature of the mixture at the nozzle, and said mixture temperature being such as to impart to said resulting mixture a Wobbe number essentially equivalent to the predetermined Wobbe number of said gas at said predetermined nozzle gas temperature, delivering said hydrocarbon and steam as a vaporized mixture to the nozzle of said gas burner, and burning said vaporized mixture in said gas burner. Apparatus for burning either liquid hydrocarbon or gas comprising a gas burner having nozzle means for burning air and gas, said gas having a predetermined Wobbe number at a predetermined nozzle gas temperature, a gas conduit connected thereto, means for supplying liquid hydrocarbon to a vaporizing apparatus, means for supplying steam to said vaporizing apparatus, said vaporizing apparatus comprising means for preheating said liquid hydrocarbon to a predetermined temperature to at least partially vaporize said hydrocarbon, means for mixing said preheated hydrocarbon with steam at a ratio of about 0.1 to 1.0 pound of steam per pound of hydrocarbon under pressure in the range of about 30 to 150 pounds per square inch gauge, means for heating said mixture to a temperature in the range of about 450°to 800°F. whereby said mixture has essentially the equivalent Wobbe number as said gas at said burner nozzle, and means for feeding said heated mixture to said gas burner nozzle.