Patent ID: 8882860

Claim:
An emulsifier for a water-in-oil emulsion fuel, the emulsifier comprising components (1) to (7): (1) Heavy oil fuel A: 50 mL to 100 mL; (2) Heavy oil fuel B: 100 mL to 200 mL; (3) Heavy oil fuel C: 300 mL to 450 mL; (4) Methanol: 100 mL to 150 mL; (5) Ethanol: 100 mL to 200 mL; (6) Palm oil: 100 mL to 150 mL; and (7) Water: 100 mL to 200 mL; wherein heavy oil fuel A is a fuel oil having a flash point ° C. of 60 minimum, a kinematic viscosity at 50° C. in mm 2 /S of 20 maximum, a pour point ° C. of 5 maximum, a residual carbon content mass % of 4 maximum, a water content volume % of 0.3 maximum, an ash content mass % of 0.05 maximum, and a sulfur content mass % of 2.0 maximum, wherein heavy oil fuel B is a fuel oil having a flash point ° C. of 60 minimum, a kinematic viscosity at 50° C. in mm 2 /S of 50 maximum, a pour point ° C. of 10 maximum, a residual carbon content mass % of 8 maximum, a water content volume % of 0.4 maximum, an ash content mass % of 0.05 maximum, and a sulfur content mass % of 3.0 maximum, and wherein heavy oil fuel C is a fuel oil having a flash point ° C. of 70 minimum, a kinematic viscosity at 50° C. in mm 2 /S of 1000 maximum, a water content volume % of 2.0 maximum and an ash content % of 0.1 maximum, and a sulfur content mass % of 3.5 maximum.