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首页> 外文期刊>Arabian Journal for Science and Engineering >Biodiesel Production from Waste Edible Oil with Heterogeneous Catalysts (Nanoclay-Based Nanocatalysts)
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Biodiesel Production from Waste Edible Oil with Heterogeneous Catalysts (Nanoclay-Based Nanocatalysts)

机译：用多相催化剂从食用废油中生产生物柴油（基于纳米粘土的纳米催化剂）

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The various benefits of biofuels versus fossil fuels due to recent global challenges and issues are the best approach toward low-cost economic production of renewable energy. This study is trying to obtain economic catalysts with easy fabrication technology. The synthesized catalysts were obtained using calcium oxideanoclay catalysts by an initial ion-exchange reaction of calcium oxide and nanoclays (montmorillonite). These catalysts have been synthesized for the first time by being stirred for 5 h at a temperature of 80 degrees C, and the colloidal supernatant is obtained and kept in an ultrasonic bath for 20 min. The solution was filtered, washed several times, the residual mixture on filter paper was dried in the oven at 50 degrees C for few hours, and the powder was calcined for 8 h in a furnace at 600 degrees C. After identification and characterization, using XRD, BET, and SEM, the results approved the formation of a new nanostructure in synthesized catalysts, which were suitable to be used in biodiesel production from waste oils with high free fatty acids content. The results of this study indicate that the catalysts production process is not complicated, and methyl ester production rates in all biodiesel samples were more than 97% (97.1-98.8%).
机译：由于近期全球面临的挑战和问题，生物燃料与化石燃料相比具有多种优势，是实现低成本经济生产可再生能源的最佳方法。这项研究试图通过简单的制造技术获得经济的催化剂。使用氧化钙/纳米粘土催化剂通过氧化钙和纳米粘土（蒙脱土）的初始离子交换反应获得合成的催化剂。这些催化剂是通过在80摄氏度的温度下搅拌5小时来首次合成的，获得了胶体上清液，并在超声浴中放置20分钟。将溶液过滤，洗涤几次，将滤纸上的残留混合物在烤箱中于50摄氏度下干燥数小时，并将粉末在600摄氏度的炉中煅烧8小时。鉴定和表征后，使用XRD，BET和SEM的结果证实了在合成催化剂中形成新的纳米结构，适用于由具有高游离脂肪酸含量的废油生产生物柴油。这项研究的结果表明，催化剂的生产过程并不复杂，所有生物柴油样品中的甲酯产率均超过97％（97.1-98.8％）。

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