Simulation process of biodiesel production plant
Simulation process of biodiesel production plant
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DOI：
10.1002/ep.13264
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发表时间：
2019-05
影响因子：
2.8
通讯作者：
Abozar Salehi;A. Karbassi;B. Ghobadian;A. Ghasemi;A. Doustgani
中科院分区：
文献类型：
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作者：
Abozar Salehi;A. Karbassi;B. Ghobadian;A. Ghasemi;A. Doustgani
全球对化石燃料的需求不断增加，导致了大量污染物的排放和可用资源的减少。由于这一事实，化石燃料的替代品，如生物柴油，对于现有资源的生存和减少环境污染至关重要。在本研究中，利用Aspen Plus v8.6软件设计并模拟了五个生物柴油连续生产过程的技术评估。为了将原始植物油(VVO)和废弃食用油(WCO)转化为生物柴油，前三种工艺分别采用了碱催化和酸催化工艺。在第四和第五步工艺中，采用两步超临界甲醇法(非催化)和酸催化正己烷萃取工艺，将WCO转化为生物柴油。根据技术评估，两步超临界甲醇工艺的操作单元数最少，但其FAME纯度最低(98.47%)。甘油纯度最高(99.98%)、甘油纯度最高(99.7%)分别属于工艺3和工艺1。结果表明，WCO均相酸催化工艺和两步超临界甲醇工艺是工艺技术评价的最佳选择。
The increasing global demands for fossil fuels have resulted in the release of large quantity of pollutants and reduction of the available resources. Owing to this fact, alternatives to fossil fuels, like biodiesel, are essential for the survival of the existing resources and the decrease of environmental contamination. In the current study, the technical assessment of five continuous biodiesel production processes was designed and simulated with the Aspen Plus v8.6 software. In order to convert virgin vegetable oil (VVO) as well as waste cooking oil (WCO) to biodiesel, alkali‐catalyzed and acid‐catalyzed processes were utilized in the first three processes. In the fourth and fifth processes, the two‐step supercritical methanol method (noncatalytic) and the acid‐catalyzed process were adopted by hexane extraction to transform the WCO to biodiesel. According to the technical assessment, the two‐step supercritical methanol process has the lowest number of operating units; however, it has the lowest purity of FAME (98.47%). The highest purity of glycerol (99.98%) and FAME (99.7%) belong to Processes 3 and 1, respectively. As a result, the homogeneous acid catalytic process of WCO and the two‐step supercritical methanol process are the best choices in terms of technical evaluation among all the examined processes.