催化酯化技术与生物柴油产业化

介绍了生物柴油的生产工艺新进展以及国内近期对生物柴油研究所取得的一些新成果;重点叙述生产生物柴油的化学转酯法和生物转酯法的应用情况;特别针对近期国内对生物柴油工业化生产研究提出的一些新技术作了详细叙述。生物柴油以其优良的环境友好和可再生性已引起世界广泛关注。     

酯交换法制备生物柴油及其在我国的实践

生物柴油是一种对环境友好的可再生燃料.综述并比较了生物柴油的各种化学制备方法,介绍了该产业的生产应用情况,指出了生物柴油的优势,分析了生物柴油在生产及使用过程中存在的一些问题并对生物柴油的未来研究与发展作了展望.     

油莱籽制取生物柴油前景广阔

生物柴油是一种用油菜籽深加工制取的新型燃烧,其性能与零号柴油相近,使用生物柴油时无需对现有柴油机进行结构改进。目前在美国、欧洲、亚洲的一些国家和地区已开始建立商品化生物柴油生产基地,并将生物柴油作为代用燃料广泛使用。意大利一家公司最近生产的生物柴油已作为公交汽车燃油及学校、医院等公共场所的供热燃料。日本政府也已批准生物柴油作为商品燃料由加油站提供。国内目前对生物柴油的生产和应用也进行了开发,已研制成功利用菜籽油、大豆油、米糠油脚料、工业猪油、牛油及野生植物小桐籽油等作为原料,经过甲醇预酯化再酯化…     

油菜籽制取生物柴油前景广阔

生物柴油是一种用油菜籽加工制取的新型燃料。其性能与零号柴油相近 ,使用生物柴油时无需对现有柴油机进行结构改进。目前在美国、欧洲、亚洲的一些国家和地区 ,已开始建立商品化生物柴油生产基地 ,并将生物柴油作为代用燃料广泛使用。意大利一家公司最近生产的生物柴油已作为公交汽车燃油及学校、医院等公共场所的供热燃料。日本政府也已批准生物柴油作为商品燃料由加油站提供。国内目前对生物柴油的生产和应用也进行了开发。已研制成功利用菜籽油、大豆油、米糠油脚料、工业猪油、牛油及野生植物小桐籽油等作为原料 ,经过甲醇预酯化后再酯…     

生物柴油的最新研究进展

综述了三代生物柴油的主要特性及发展现状,叙述了第一代生物柴油的生产方法,第二代生物柴油的主要制备工艺及优缺点,介绍了第三代生物柴油的研究现状与发展前景.     

生物柴油的研究现状及进展

介绍了生物柴油的特性及优点、生物柴油的原料来源及生物柴油在国内外的研究现状,主要综述了生物柴油的四大生产方法:物理法、化学法、生物酶法以及无催化剂超临界法。     

生物柴油经济性及政策研究初探

介绍了国外生物柴油的税收补贴政策,根据目前国内生物柴油的实际生产情况分析了影响生物柴油经济性的几个因素,初步探讨了生物柴油的税收补贴政策,提出了发展我国生物柴油的政策建议.     

生物柴油的生产工艺与发展浅谈

介绍了国内生物柴油的发展情况,探讨了酯化反应的原理及用废弃油脂生产生物柴油的工艺。     

生物柴油的研究现状

本文综述了国内外生物柴油的研究进展及应用现状。介绍了直接混合、微乳液、高温热裂解及酯交换等生物柴油的生产方法,同时对生物柴油所需的原料来源作了介绍,并提出了我国发展生物柴油的意义。     

生物柴油研究进展

介绍了生物柴油的性能和生产方法，以及国内外的生产和研究现状，提出了我国生物柴油生产趋势和研究方向。     

Kinetics of glycerol effect on biodiesel production for optimal feeding of methanol

The enzymatic production of biodiesel has been considered as an eco-friendly process. Candida antarctica lipase B (CalB) has been studied for its application for biodiesel production because of its high activity and stability. Enzyme deactivation caused by alcohol and effect of glycerol has to be resolved for the industrial application of this process. In traditional kinetic studies of biodiesel production, the effects of alcohol and oil were only considered in the kinetic equation, while the effect by glycerol was neglected. A new kinetic model incorporating glycerol effect is proposed in this paper. The proposed kinetic equation is applied by predicting the supplying rate of methanol in a fed-batch addition of methanol. The conversion rate was improved from 59.7% to 94.6% in a fed-batch by considering glycerol effect.     

生物柴油制备工艺现状

综述了目前生物柴油的制备方法,介绍了国内外生物柴油的主要生产工艺,对生物柴油间歇式和连续化生产工艺进行了比较,并对生物柴油未来的发展趋势进行了展望。     

植物油脂肪酸甲酯-生物柴油作替代燃料的意义

植物油脂肪酸甲酯-生物柴油以其优越理化性能迅速成为清洁代用燃料之一。对国内外生物柴油的生产方法、酯交换工艺、酯交换反应催化剂及生产应用状况作了论述。发展生物柴油产业对解决我国柴汽油供需平衡及其依赖进口、农业和生态等等问题有重要的影响意义,提出了该产业的发展对策以及对该产业的展望。     

生物柴油的制备技术及应用现状

生物柴油是一种可再生、更洁净的新能源。详细介绍了酯交换反应制备生物柴油的化学催化法、酶催化法和超临界法,并综述了生物柴油在国、内外的生产应用现状。     

Comparison between conventional and ultrasonic preparation of beef tallow biodiesel

Tallow is biodiesel feedstock that, due to its highly centralized generation in slaughter/processing facilities and historically low prices, may have energetic, environmental, and economic advantages that could be exploited. Transesterification of fatty acids by means of ultrasonic energy has been used for biodiesel production from different vegetable oils. However, application of ultrasonic irradiation for biodiesel production from beef tallow has received little attention. In this work, the transesterification of beef tallow with methanol was performed in the presence of potassium hydroxide as a catalyst using ultrasound irradiation (400 W, 24 kHz). The reaction time, conversion and biodiesel quality were compared with that seen in conventional transesterification. The results indicated that the reaction conversion and biodiesel quality were similar; however, the use of ultrasonic irradiation decreased the reaction time, showing that this method may be a promising alternative to the conventional method.     

我国生物柴油产业化制备技术及其发展趋势

概述了我国生物柴油产业化发展现状,分析了我国生物柴油产业化技术发展缓慢的原因,介绍了提高生物柴油生产线经济效益的一些方法,预测了我国生物柴油产业化发展方向.结果表明,加快我国生物柴油适用技术的开发,制订相应的生物柴油进入市场的政策法规,是加速生物柴油产业化发展重要途径.     

Techno-Economic Evaluation of Biodiesel Production from Waste Cooking Oil—A Case Study of Hong Kong

Fossil fuel shortage is a major challenge worldwide. Therefore, research is currently underway to investigate potential renewable energy sources. Biodiesel is one of the major renewable energy sources that can be obtained from oils and fats by transesterification. However, biodiesel obtained from vegetable oils as feedstock is expensive. Thus, an alternative and inexpensive feedstock such as waste cooking oil (WCO) can be used as feedstock for biodiesel production. In this project, techno-economic analyses were performed on the biodiesel production in Hong Kong using WCO as a feedstock. Three different catalysts such as acid, base, and lipase were evaluated for the biodiesel production from WCO. These economic analyses were then compared to determine the most cost-effective method for the biodiesel production. The internal rate of return (IRR) sensitivity analyses on the WCO price and biodiesel price variation are performed. Acid was found to be the most cost-effective catalyst for the biodiesel production; whereas, lipase was the most expensive catalyst for biodiesel production. In the IRR sensitivity analyses, the acid catalyst can also acquire acceptable IRR despite the variation of the WCO and biodiesel prices.     

生物柴油在精细化学品领域的应用

论述了生物柴油(即脂肪酸甲酯)代替脂肪酸在制造精细化工品上的优势,并列举了生物柴油在表面活性剂工业、塑料助剂、醇酸树脂、皮革化学品上的应用。指出了用生物柴油代替脂肪酸具有成本低廉、工艺简化的优点,并可提高生物柴油的应用价值,具有广阔的应用前景。     

负载型固体酸催化制备生物柴油研究进展

负载型固体酸催化剂具有无腐蚀、分离容易、对环境不产生污染、原料适应性广等优点,已成为制备生物柴油首选的绿色催化剂。本文综述了负载型固体酸催化剂制备原理、生产工艺、研究方法及其结构表征,分析了负载型固体酸自身结构与油脂酯交换反应催化活性的关系,预测了负载型催化剂在生物柴油制造业的应用前景。