Waste vegetable fats are standardised by biobutanol in this article while replacing biodiesel. Viscosity, density, cold filter plugging point of fuel blend, oxidation stability, and flash point were measured to confirm that a fuel is so close to a fuel standard that it is possible to use it in engines without modification. Results of this analysis have allowed us to propose a new fuel product with the preliminary title BUTVO_60, which symbolises 60% biobutanol and 40% waste vegetable oil. Performance and emission parameters of this new fuel product were tested in a Zetor 8641 tractor with a Forterra supercharged diesel engine. The resulting 30% decrease in power was reached by measuring with an AW NEB 400 dynamometer at PTO, while maintaining 38% torque reserve. But by increasing fuel intake the engine maintained a stable performance. Nitrate emissions and BUTVO_60 particles were considerably lower at the non-road steady cycle (NRSC) test. In contrast to biodiesel, BUTVO_60 fuel also has kept the fuel system cleaner while minimizing carbon, impurities, sediments, and so on. The objective of this article is to allow the use of waste vegetable cooking oils as fuel while replacing biodiesel. The side effect of the proposed method is the ability of decentralised blending at places where local waste cooking oil emerges. No technology in either investment is needed in fuel processing or engine adaptation of fuel oils.
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