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发表刊物：
Renewable Energy
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关键字：
Response surface methodology; biodiesel; clinoptilolite; transesterification
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摘要：
In this research, a series of Ca-Zr/clinoptilolite catalysts, which are activated at the different calcination temperatures, are synthesized by the simple co-precipitation method and then applied in catalyzing transesterification of the high-acid-value feedstock oil with methanol to produce biodiesel. The acidic and basic sites in the catalyst originate from the synergistic effect of Zr and Ca. The excellent pore structure of the Ca-Zr/clinoptilolite catalyst is conducive to the rapid diffusion of reactant molecules such as triglycerides within the catalyst, thereby enhancing the transesterification efficiency. The Ca-Zr/clinoptilolite catalyst activated at 850°C is preferred as the final catalyst due to the highest catalytic activity in transesterification. The response surface methodology (RSM) with the central composition designs (CCD) is employed to optimize the catalyzed transesterification parameters of the methanol to oil molar ratio, catalyst amount, and reaction temperature at the fixed reaction duration of 180 minutes. At the methanol to oil molar ratio of 17.7, catalyst amount of 7 wt.%, and reaction temperature of 131°C, the highest biodiesel yield of 97.43% is achieved. On the whole, the Ca-Zr/clinoptilolite catalyst exhibits the great acid resistance capability and stability in catalyzing transesterification of the high-acid-value feedstock oil for biodiesel production.
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全部作者：
Abulikemu Abulizi,Yang Xu,Xin Li,Yue Zheng,Yujie Wei,Yujiao Zhang,Yanan Hao,Sitong Liu,Jisen Liu,Zihao Yang
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第一作者：
Jie Zhu
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论文类型：
期刊论文
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通讯作者：
Shengli Niu* (*the corresponding author)
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学科门类：
工学
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一级学科：
动力工程及工程热物理
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文献类型：
J
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是否译文：
否
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发表时间：
2025-04-01
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收录刊物：
SCI
