Extraction, Characterization and Use of Nano Additive Blended Copyrolysis Oil as Substitute Fuel in a DI Diesel Engine with Selective Catalytic Reduction Technique

Abstract

In this work, the co-pyrolysis of biomass (a mixture of rice husk and straw) and high density polyethylene was utilized to extract and characterize the oil in order to find the best promising process parameters. Additionally, the recovered oil was mixed with different concentrations of Zinc Oxide additive and put into a Diesel Engine to test its efficiency and pollution characteristics along with selective catalytic reduction technique. According to test results, 75:25 ratio produced the highest oil output (high density polyethylene:rice straw husk ratio). Upgrading the rate of heating to 10 °C/min enhanced oil yield, and an additional increase to 15 °C/min give rise to a striking drop in oil output. By heating at 10 °C/min, the greatest copyrolysis oil was produced in the range of 525 to 545 °C. Analysis of the copyrolysis oil revealed the existence of alcohol cluster like alkene, alkane etc., From C5 to C28, there are around 90 different fuel types of hydrocarbons, and other thermophysical components are identical to petro diesel. According to engine test results, adding 75 ppm of nanoparticles to copyrolysis oil increased thermal efficiency by 2.5% when compared to plain copyrolysis oil. SCR was used at the exhaust, which ensued in a 74% drop in NOx pollution. For the aforementioned copyrolysis blend, other pollutants like HC reduced by 1.3%, CO decreased by 1.5%, and CO2 slightly declined by 0.3%.