Effective Use of Orinoco Tar as Alternative Fuel for Diesel Engines (Orinoco Tar Quality Improvement by WPD)

Blending pyrolitic oil (or Waste Plastic Disposal) produced from household and industrial plastic wastes with Orinoco tar, which is 70% of orimulsion, reduces the viscosity of the oil. The experimental results indicated that, the WPD mixing ratio of 20 vol. % reduces the bitumen's viscosity by almost 5 times from 500 cSt to 20 cSt at 50°C. The blended oil has been applied to a small size high-speed single-acting 4 stroke diesel engine (14 kW, 2200rpm) without preheating the oil. The engine test with non-preheated blended Orinoco tar has proved the possibility of WPD-mixed Orinoco tar as fuel for diesel engine. In order to improve the engine performance and exhaust characteristics, the far-infrared and electrostatic fuel filters have been tested. The engine test result has shown the effect of the far-infrared fuel filter in the aspect of enhancing the engine performance stability and reducing NOx and N₂O emission.