共查询到18条相似文献,搜索用时 62 毫秒
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生物柴油及其生产技术的进展 总被引:5,自引:0,他引:5
介绍了由可再生油脂原料衍生的环保燃料生物柴油在国内外应用现状,重点介绍了酯交换法制备生物柴油技术研究进展情况,展望了生物柴油产业在我国的发展前景。 相似文献
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超声波制备生物柴油技术的研究进展 总被引:1,自引:0,他引:1
超声波技术作为一门新兴的技术已受到普遍关注.文章综述了近年来国内外超声波技术在生物柴油制备中应用的研究现状、制备原理和优缺点,指出了该技术在生物柴油制备中须要解决的问题,在此基础上提出超声波制备生物柴油技术的发展方向,认为开发更优良的的制备工艺是今后超声波制备生物柴油技术研究领域的主要任务. 相似文献
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桐油制备生物柴油的研究 总被引:3,自引:0,他引:3
以桐油为原料,研究了高酸值原料油的预酯化工艺条件,以及酯交换反应过程中甲醇加入的方式.对桐油预酯化工艺条件的研究结果表明,在搅拌速度一定的情况下,预酯化工艺的最佳条件为醇油摩尔比7∶1、硫酸用量为1.5%(质量比)、反应温度70℃、反应时间2 h;在研究的四个因素(醇油摩尔比,催化剂浓度,反应温度,反应时间)中,反应温度对酯化反应转化率的影响最大.在酯交换反应过程中,对分批加入甲醇的初步研究结果表明,在醇油摩尔比6 ∶1、KOH浓度 1%(质量比)、反应温度60℃、反应时间1 h的条件下,分两批加入甲醇的收率比一次加入甲醇的收率提高了4%. 相似文献
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Ning Cao Yuan Zhang Bai Yang Yong Wang Guizhi Zhang 《Energy Sources, Part A: Recovery, Utilization, and Environmental Effects》2016,38(22):3354-3359
Biodiesel was prepared with microalgae oil under supercritical methanol condition. The calorific value, chemical composition, molecular structure, and fuel behaviors of the as-prepared biodiesel were characterized by several means. All the results show that most fuel performances of the product oil resemble those of the fossil diesel except for the low-temperature performance. The product oil has long molecular chains and many unsaturated double-bond structures. In this meaning, the biodiesel is suitable to be mixed with fossil diesel or to be added to pour point depressant for industrial application. 相似文献
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Soumya Parida Debendra Kumar Sahu Pramila Kumari Misra 《Energy Sources, Part A: Recovery, Utilization, and Environmental Effects》2016,38(8):1110-1116
Karanj oil having high free fatty acid was neutralized with a dilute alkali solution and then mixed with soybean oil in different ratios in order to reduce the free fatty acid content significantly. The mixture of the oils was then transesterified with methanol to produce fatty acid methyl ester. The transesterification was carried out using ultrasonication energy of 20 kHz in pulse mode. It was found that up to 60% Karanj oil in the blended mixture could produce good quality biodiesel that met the ASTM standards. However, the lesser content of Karanj oil in the mixture, the lesser the reaction parameters viz. alcohol to oil molar ratio, catalyst concentration, and reaction time. About 99% yield of methyl esters was obtained when the Karanj oil content in the mixture was 20% with a reaction time of 30 min, catalyst concentration 1 wt%, and a temperature of 55°C. 相似文献
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Yongsheng Zhang Chonghuai Niu 《Energy Sources, Part A: Recovery, Utilization, and Environmental Effects》2018,40(12):1469-1476
Nowadays, a green replacement for the conventional petrodiesel introduced as biodiesel in which its economical production way is using feedstock. Also, environmentally friendly fuels attracted more attention due to the serious global warming problem. In the present study, two different artificial intelligencebased modeling was utilized to predict the production of biodiesel from castor oil. Also, a comparison between the two methods was carried out, and the more applicable method for the prediction of biodiesel production was introduced. To this end, biodiesel production yield from castor oil assumed to be the target of the model and various parameters such as temperature (T), time (S), methanol to oil molar ratio, and catalyst weight (C) expected as input parameters. ANN modeling shows high accuracy and robustness for the prediction of biodiesel production, and statistical parameters such as coefficient of determination and root-mean-square error are 0.9984 and 1.13, respectively. 相似文献
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