查询词典 biodiesel

Tert-amyl alcohol was used as a reaction medium for Novozym 435 lipase-catalyzed methanolysis of soybean oil for biodiesel production.

叔戊醇作为反应介质，固定化脂肪酶Novozym 435催化大豆油与甲醇的转酯反应制备生物柴油。

Results showed that AOT reversed micellar systems provided a suitable micro-environment for biodiesel production. The optimal parameters were: the ratio of water and AOT 11, AOT concentration 50 mmol/L, temperature 40℃, pH 7, molar ratio of methano and oil 3, and rotating speed 180 r/min. The transesterification rate reached 90% when a 3-step methanolysis protocol was used.

研究结果表明： AOT/异辛烷反胶束体系为Candida sp.99-125脂肪酶催化提供了较为合适的微环境，在W0为11，表面活性剂浓度为50 mmol/L，温度为40℃，缓冲液pH值为7的AOT/异辛烷反胶束体系中，醇油摩尔比为3∶1，摇床转速为180 r/min，采用12h3次流加1 mol当量的甲醇，单批最高酯转化率可以达到90%。

Lipozyme TL IM can efficiently catalyze methanolysis transesterification of rapeseed oil for biodiesel production.

脂肪酶Lipozyme TL IM在有机相体系中能有效催化菜籽油醇解反应生成生物柴油。

This paper focuses on the stability study of Rhizopus oryzae IFO4697 when used for the methanolysis of renewable oils for biodiesel production. The results showed that water content was important for achieving high catalytic activity and good stability of the biocatalyst. The optimum water content was found to be 5%-15%. Both particle size and desiccation methods showed no obvious effect on the stability of the biocatalyst. With GA cross-linking pretreatment, the stability of the biocatalyst could be improved significantly. When Rhizopus oryzae IFO4697 repeatedly used for next batch reaction, direct vacuum filtration was found to be a good way for the maintenance of good stability of the biocatalyst.

本实验对固定化全细胞Rhizopus oryzae IFO4697催化植物油脂合成生物柴油的稳定性进行了系统地研究，结果表明：反应体系水含量对于全细胞催化剂的反应活性和催化稳定性有重要影响， 5%~15%含水量适宜；研究范围内，载体粒度及干燥方式对稳定性影响不显著；经过戊二醛交联后，全细胞催化油脂甲醇解反应的稳定性显著提高， 1200 h反应后，仍然可以保持75%的生物柴油得率；真空抽滤直接回用的方式有利于稳定性的保持。

The oil was further explored for biodiesel production by lipase-catalyzed methanolysis. Two processes were studied, namely, three-step methanol loading in solvent-free system and all-in-one methanol loading in tert-butanol system.

进一步利用该酵母油脂为原料分别研究了无溶剂体系中三步甲醇法及在叔丁醇介质体系中脂肪酶催化合成生物柴油，发现脂肪酶可以有效转化该酵母油脂制备生物柴油。

The crudeglycerol from biodiesel production could be directly converted to 1,3-PD without any priorpurification. In flask cultures, the 1,3-PD yields of 0.62 and 0.44mol/mol on crude glycerolfrom lipase-and alkali-catalyzed methanolysis of soybean oil were lower than that of0.68mol/mol on pure glycerol. In fed-batch fermentations, the 1,3-PD yields of 0.47 and0.46mol/mol on crude glycerol were comparable to that of 0.49mol/mol on pure glycerol.

生物柴油的副产物甘油不经纯化可以直接用来发酵生产1，3-丙二醇，在摇瓶培养中，由酶法和碱法得到的甘油获得的1，3-丙二醇的转化率分别为0.62mol／mol和0.44mol／mol，而纯甘油得到的转化率为0.68mol／mol；在批式流加发酵中，由酶法与碱法得到的甘油和纯甘油得到的1，3-丙二醇的转化率相差不大，分别为0.47mol／mol、0.46mol／mol和0.49mol／mol，纯甘油得到的生产强度最高，为2.0g／，两种粗甘油得到的生产强度都为1.7g／。

Using magnesium methoxide as a heterogeneous catalyst to produce biodiesel was put forward,and the corresponding process for catalyst disposal was researched.

开发了以甲醇镁为非均相催化剂制备生物柴油的工艺流程，研究了相应的催化剂后处理工艺。

Transesterification of rapeseed oil to biodiesel with methanol using calcium methoxide as a solid base catalyst was investigated.

研究了甲醇钙固体碱催化剂催化菜籽油和甲醇酯交换反应制备生物柴油的反应性能，分析了甲醇钙的比表面积、总孔体积、平均孔径和热稳定性，并研究了反应温度、催化剂用量和醇油摩尔比对生物柴油产率的影响。

Biodiesel is a renewable fuel consisting of the alkyl monoesters of fatty acids which are products of the transesterification of vegetable oils or animals fats with a simple monohydric alcohol in the presence of a suitable catalyst.

生物柴油是一种可再生能源，它是由植物油或动物脂肪与短链醇类在适当的催化剂作用下转酯化反应生成的脂肪酸单酯组成的。生物柴油作为一种可替代、无毒、生物降解性好和可再生性燃料，越来越受到人们的重视。

Assisted with ultrasonic radialization, the optimized conditions for biodiesel production catalyzed by calcined Zn-Mg-Al hydrotalcite were obtained.

以纳米Zn-Mg-Al高温煅烧物为催化剂，高酸值小桐子油为原料，超声波反应器中连续生产生物柴油，并系统研究超声波辐射协同纳米催化剂催化制备生物柴油的最优条件。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！