CAJ | 학술논문

采用两种不同原料来源的生物柴油进行干洗与水洗纯化实验，对比了干洗、水洗纯化产品及水洗后蒸馏产品的部分理化性质，包括酸值、闪点、冷滤点、运动粘度及密度，对三种原料来源的生物柴油采用干洗替代水洗工艺的可行性进行分析。通过对菜籽油、貉子油生物柴油的干洗产品质量的对比，考察lanxess树脂、罗门哈斯树脂及吸附剂硅酸镁等对生物柴油的干洗效果，幵研究硅酸镁干洗法的最佳工况。研究结果表明，硅酸镁纯化的菜籽油及废煎油生物柴油产品测试指标达到国家标准，可以替代水洗法，而离子交换树脂干洗纯化后生物柴油酸值略有偏高。硅酸镁最适宜干洗温度及时间分别为55℃和30 min。
채용량충불동원료래원적생물시유진행간세여수세순화실험，대비료간세、수세순화산품급수세후증류산품적부분이화성질，포괄산치、섬점、랭려점、운동점도급밀도，대삼충원료래원적생물시유채용간세체대수세공예적가행성진행분석。통과대채자유、맥자유생물시유적간세산품질량적대비，고찰lanxess수지、라문합사수지급흡부제규산미등대생물시유적간세효과，견연구규산미간세법적최가공황。연구결과표명，규산미순화적채자유급폐전유생물시유산품측시지표체도국가표준，가이체대수세법，이리자교환수지간세순화후생물시유산치략유편고。규산미최괄의간세온도급시간분별위55℃화30 min。
As to meet the quality requirements of Chinese Standard for biodiesel fuel (GB/T 20828-2007), post transesterification purification is needed. This study compared two purification methods for biodiesel such as dry-cleaning and water-washing. The common method in industry is water-washing, but purification by dry-cleaning with ion exchange resins or magnesium silicate as solid adsorbent shows great potential on energy-saving and process-simplifying. In the study, dry-cleaning was carried out respectively with lanxess resin, Rohm&Haas resin and magnesol as adsorbent. These three methods have been used to purify three types of biodiesel from rape seed oil, racoon dog oil and waste frying oil in order to compare which gives better results and analyze the feasibility for dry-cleaning instead of water-washing. It has been found that dry-cleaning with magnesol obtained the best performance and the tested properties of biodiesel product had meet GB/T 20828-2007 standard while purifying with resin induced a slight increase of acid value of biodiesel. Soap removal in magnesol work was influenced to some extent by the addition of magnesol, the optimum temperature and agitation time for the purification were determined to be 55oC and 30 min respectively.