Preparationand Physico-Chemical Properties Evaluation of Biodiesel from Pithraj (Aphanamixis Polystachya)Seeds available in Bangladesh

Chemical Engineering Research Bulletin Pub Date : 2021-06-23 DOI:10.3329/cerb.v22i1.54298

Md Razu Ahmmed, Md. Ikramul Hasan, M. Mortuza, -. Mohammad Ismail

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Abstract

In this study, Pithraj (Aphanamixis polystachya) seed (PS) oil was used to produce biodiesel via trans-esterification process. The PS oil was extracted from seed using a soxhlet solvent extraction technique and the effect of temperature and heating rate on product distribution was investigated. The PS oil was pretreated (esterified) to combat the saponification reaction and other associated problems e.g., phase separation. The transesterification reactions were carried out and the optimum biodiesel yield was found 93.87%, when the reaction condition was as follows: addition of 50 wt.% methanol, 0.8 wt.% NaOH (both are on the basis of wt.% of PS oil addition), 60 °C reaction temperature and 90 min reaction time. Biodiesel produced from PS oil was characterized by various physico-chemical means and compared with international standards. The use of the produced biodiesel in blend with commercial diesel will bring a remarkable change in fuel economy of the country, will ensure a clean and safe environment and will demonstrate a way for ‘Waste to Energy’. Chemical Engineering Research Bulletin 21(2020) 43-48

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孟加拉皮拉树种子制备生物柴油及其理化性质评价

本研究以皮树(Aphanamixis polystachya)种子(PS)油为原料，通过反式酯化反应制备生物柴油。采用索氏溶剂萃取法从种子中提取多糖油，考察了温度和加热速率对产物分布的影响。对PS油进行预处理(酯化)，以解决皂化反应和相分离等相关问题。在甲醇添加量为50 wt.%， NaOH添加量为0.8 wt.%(均以PS油添加量为wt.%为基础)，反应温度为60℃，反应时间为90 min的条件下，进行了酯交换反应，生物柴油的最佳收率为93.87%。用各种理化手段对PS油制备的生物柴油进行了表征，并与国际标准进行了比较。将生产的生物柴油与商业柴油混合使用，将给该国的燃料经济性带来显著变化，将确保清洁和安全的环境，并将为“废物转化为能源”展示一条道路。化工研究通报21(2020)43-48

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