The current experimental study focuses on enhancing the characteristics and properties of bio-mix test fuel samples by using an additive such as n-butanol. Raw bio-mix fuel samples were prepared through a method of bio-mix to enhance the quality of biodiesel from the raw mixture of edible and non-edible feedstocks. In this experimental investigation, five test samples were prepared such as BSBW1, BSBW2, BSBW3, BSBW4 and BSBW5 at various blended ratios from the raw mixture of soapnut, borassus flabellifer, waste crude cotton seed oils and transesterified for the formation of bio-mix methyl ester fatty acids. From experimental results, it was observed that BSBW4 and BSBW5 recognized as optimum blends exhibited lower acid value than BSBW1, BSBW2 and BSBW3 blends. The fatty acid compositions of optimum bio-mixed samples were examined by using Gas Chromatography and Mass Spectrometry (GC-MS) to determine the characterization of tested fuels. 10% of the n-butanol additive deployed to the optimal blends BSBW4 and BSBW5 referred to as BSBW4B10 and BSBW5B10 were chosen for further experimental analysis. Experimental test results demonstrated that oxidation stability, cetane number, saturated fatty acid methyl ester, cold flow properties were improved while flash point, viscosity, iodine number, density, free fatty acid and heating value decreased. From this experimental investigation, it was concluded that the method of the n-butanol additive added to the bio-mix fuel samples could enhance the quality of the fuel and met the BIS, ASTM and EN testing procedures and standard limits as compared to all bio-mix and individual fuel samples respectively.

目前的实验研究侧重于通过使用添加剂（如正丁醇​​）来增强生物混合测试燃料样品的特性和性能。通过生物混合方法制备原始生物混合燃料样品，以提高可食用和非食用原料的原始混合物中生物柴油的质量。在本实验研究中，以不同混合比例从皂荚、菠萝蜜、废粗棉籽油的原料混合物中制备五个测试样品，例如 BSBW1、BSBW2、BSBW3、BSBW4 和 BSBW5，并通过酯交换形成生物混合甲基酯脂肪酸。从实验结果可以看出，BSBW4 和 BSBW5 被认为是最佳共混物，其酸值低于 BSBW1、BSBW2 和 BSBW3 共混物。通过使用气相色谱和质谱 (GC-MS) 来检查最佳生物混合样品的脂肪酸组成，以确定测试燃料的特征。选择 10% 的正丁醇添加剂用于优化混合物 BSBW4 和 BSBW5，称为 BSBW4B10 和 BSBW5B10，用于进一步的实验分析。实验测试结果表明，氧化稳定性、十六烷值、饱和脂肪酸甲酯、冷流性能提高，而闪点、粘度、碘值、密度、游离脂肪酸和热值降低。从本次实验调查中得出结论，将正丁醇添加剂添加到生物混合燃料样品中的方法可以提高燃料质量并符合 BIS，