Zhang Y, Dubé M A, McLean D D, Kates M
Department of Chemical Engineering, University of Ottawa, Ont., K1N 6N5, Ottawa, Canada.
Bioresour Technol. 2003 Dec;90(3):229-40. doi: 10.1016/s0960-8524(03)00150-0.
The economic feasibilities of four continuous processes to produce biodiesel, including both alkali- and acid-catalyzed processes, using waste cooking oil and the 'standard' process using virgin vegetable oil as the raw material, were assessed. Although the alkali-catalyzed process using virgin vegetable oil had the lowest fixed capital cost, the acid-catalyzed process using waste cooking oil was more economically feasible overall, providing a lower total manufacturing cost, a more attractive after-tax rate of return and a lower biodiesel break-even price. On the basis of these economic calculations, sensitivity analyses for these processes were carried out. Plant capacity and prices of feedstock oils and biodiesel were found to be the most significant factors affecting the economic viability of biodiesel manufacture.
评估了四种利用废食用油生产生物柴油的连续工艺（包括碱催化和酸催化工艺）以及使用初榨植物油作为原料的“标准”工艺的经济可行性。尽管使用初榨植物油的碱催化工艺固定资本成本最低，但总体而言，使用废食用油的酸催化工艺在经济上更可行，其总制造成本更低、税后回报率更具吸引力且生物柴油盈亏平衡价格更低。基于这些经济计算，对这些工艺进行了敏感性分析。发现工厂产能以及原料油和生物柴油的价格是影响生物柴油制造经济可行性的最重要因素。
