Biodiesel Production from a Naturally Grown Green Algae Spirogyra Using Heterogeneous Catalyst: An Approach to RSM Optimization Technique

IF 2.4 Q3 ENERGY & FUELS
Teku Kalyani, Lankapalli Sathya Vara Prasad, Aditya Kolakoti
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引用次数: 4

Abstract

The present study focuses on oil extraction and biodiesel production from naturally grown green Spirogyra algae. Solvent oil extraction and oil expeller techniques were used to extract the Spirogyra algae oil (SALO), and the oil yields were compared to identify the most productive method. Using chicken eggshell waste (CESW) heterogeneous catalyst (HC) was prepared for the production of Spirogyra algae oil biodiesel (SALOBD). Furthermore, Box–Behnken (BB) assisted response surface method (RSM), an optimisation technique, was used in this study to achieve maximum algae biodiesel yield. From the 29 experimental trails, 96.18 % SALOBD was achieved at molar ratio (10:1), heterogeneous catalyst (0.6 wt.%), temperature (48 oC), and time (180 minutes). The predicted values of R2 (97.51%) and Adj. R2 (95.02 %) is found to be encouraging and fits well with the experimental values. The output results show that HC was identified as the significant process constraint followed by the time. The fatty acid composition (FAC) analysis by Gas Chromatography (GCMS) reveals the presence of 29.3 % unsaturated composition and 68.39 wt. % of the saturated composition. Finally, the important fuel properties of SALOBD were identified in accordance with ASTM D6751. The results obtained using chicken eggshell waste (CESW) for the production of biodiesel were recommended as a diesel fuel replacement to resist energy and environmental calamities.
采用多相催化剂从自然生长的绿藻螺旋藻生产生物柴油:RSM优化技术的方法
目前的研究重点是从自然生长的绿色螺旋藻中提取油和生产生物柴油。采用溶剂提油和抽油两种工艺提取水螺藻油,并对两种工艺的油收率进行了比较。采用鸡蛋壳渣(CESW)制备了多相催化剂(HC),用于生产螺藻油生物柴油(SALOBD)。此外,在本研究中,Box-Behnken (BB)辅助响应面法(RSM)是一种优化技术,用于实现藻类生物柴油的最大产量。29次实验表明,在摩尔比(10:1)、非均相催化剂(0.6 wt.%)、温度(48℃)和时间(180分钟)条件下,SALOBD达到96.18%。预测的R2(97.51%)和Adj. R2(95.02%)与实验值吻合较好。输出结果表明,HC是重要的过程约束,其次是时间约束。气相色谱法(GCMS)的脂肪酸组成(FAC)分析表明,存在29.3%的不饱和成分和68.39 wt. %的饱和成分。最后,根据ASTM D6751确定了SALOBD的重要燃料特性。利用鸡壳废弃物生产生物柴油的研究结果被推荐为一种替代柴油的燃料,以抵御能源和环境灾害。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.50
自引率
16.00%
发文量
83
审稿时长
8 weeks
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