METHOD AND APPARATUS FOR EMULSIFYING HEAVY OIL AND MAINTAINING THE EMULSIFIED OIL IN A STATE ADAPTABLE TO COMBUSTION

摘要

PURPOSE: A method and apparatus for emulsifying heavy oil and maintaining the emulsified oil in a state adaptable to combustion are provided to emulsify heavy oil and water so as to obtain emulsion fuel oil and to maintain the emulsion fuel oil in a state adaptable to combustion. CONSTITUTION: In a method and apparatus for emulsifying heavy oil and maintaining the emulsified oil in a state adaptable to combustion, the method is characterized in that a mixture made by adding an anionic surfactant to heavy oil containing a part of light oil and water is dispersed and finely granulated by means of an agitating/granulating device(A) to obtain W/O(water molecule in oil) type uniform particulate of 2 micron or less; the particulate is sprayed and floated from a bottom side of a vapor deposit chamber(B) containing aqueous solution in which small amount of alkali and metal salt are dissolved, so that a spherical W/O/W(water molecule in oil and oil in water) type composite emulsion is generated and the surfactant is deposited; at the same time, an emulsified fuel oil from which impurities in oil is eluted is passed through the agitating/granulating device(C) again, so as to further granulate the emulsion fuel oil into uniform particulate and stabilize it; the emulsion fuel oil is fed into a preheating storage chamber(D) maintained at 60deg.C; and low layer emulsion fuel oil with low quality is passed through the agitator again and recovered, while upper layer emulsion fuel oil with high quality is fed to a preheating device(E) and promptly fed to a combustor.