This study tested the suitability of solid residue (CaO) derived from the mixture of wastes biomass as based catalyst transesterification conversion of the blend of neem oilseed (Azadirachta indica A.Juss) with rendered pig fat. Blending was done in the ratio of Neem oil: Pig fat oil (v/v) as 10:90 (NO₁₀),20:80 (NO₂₀),30:70 (NO₃₀), 40:60 (NO₄₀), 50:50 (NO₅₀), 60:40 (NO₆₀), 70:30 (NO₇₀), 80:20 (NO₈₀), and 90:10 (NO₉₀), respectively. Process parameter transesterification optimization of methanolysis CaO catalyst for synthesis of 60:40 to mixed oil biodiesel (MOB) was investigated using central composite design that generates thirty experimental runs and were carried out.

Results showed low viscous oil at blend of 60:40. The predicted MOB yield of 98.05 (wt. %) at catalyst amount of 2.179 (g), reaction time of 57.45 min, reaction temperature of 59.91 °C, and MeOH/OMR of 5.9:1 (ml/ml), was validated in triplicate, and an average MOB yield of 98.03 (wt. %) was obtained. Results of XRD analysis indicated CaO as the predominant constituent element obtained from the mixture of calcined palm kernel shell husk (CPKSH) and calcined fermented kola nut husk (CFKNH). The qualities of MOB produced were within the biodiesel standard.

这项研究测试了源自废料生物质混合物的固体残渣（CaO）作为印ne油籽（Azadirachta indica A.Juss）与提炼猪脂肪的混合物的基于催化剂的酯交换转化的适用性。以印度em树油：猪脂肪油（v / v）为10:90（NO ₁₀），20：80（NO ₂₀），30：70（NO ₃₀），_40： 60（NO ₄₀）的比例进行混合，50：50（NO ₅₀），_60：40（NO ₆₀），_70：30（NO ₇₀），80：20（NO ₈₀）和90:10（NO ₉₀）， 分别。研究了甲醇合成CaO催化剂的工艺参数酯交换优化，以合成60:40为混合油生物柴油（MOB），并进行了三十次实验并进行了中心复合设计。

结果显示混合比为60:40时的低粘度油。在以下条件下验证了在2.179（g）的催化剂量，57.45分钟的反应时间，59.91°C的反应温度和5.9：1（ml / ml）的MeOH / OMR的预测的MOB收率98.05（wt。％）一式三份，并且平均MOB产率为98.03（重量％）。XRD分析的结果表明，CaO是从煅烧的棕榈仁壳（CPKSH）和煅烧的可乐坚果壳（CFKNH）的混合物中获得的主要组成元素。生产的MOB的质量在生物柴油标准之内。