生物柴油

More professional biodiesel refineries are popping up all over the US, but thousands of people now make fuel at home too. They use the oil left after they fry french fries or oil they find by scrounging around restaurants.

专业的生物柴油精炼厂在全美各地蓬勃发展，但也有数以千计的美国人选择在家自行制造生物柴油，他们利用炸过薯条或从各餐厅回收来的废食用油作为原料。

In the process of preparation of biodiesel,the immiscibility of oil and alcohol leads to low transesterification rate and low production efficiency.

在生物柴油生产过程中，由于原料油与醇不互溶，导致生物柴油生产过程中酯交换速率低，影响了生产效率。

Expanding global biodiesel production will support soybean prices but palm oil demand for biodiesel output is likely to be less than anticipated, according to a report from commodities analyst FO Licht.

据商品分析机构FO Licht的一份报告，全球生物柴油产量的上升将对大豆价格起到支持作用，但生物柴油对棕榈油的需求可能会低于预计。

The fuel ethanol or bio-diesel production rate per unit area is positively relative to the material yield and saccharine content or oil content of material.

在任何一块土地上，生物质液体燃料的产量与可利用的土地面积和原料的燃料乙醇或生物柴油产率呈正相关关系，原料的燃料乙醇或生物柴油产率则与原料的单位面积产量、含糖率、和转化率呈正相关关系。

New production technology of a solid acid catalyst for biodiesel production A solid acid catalyst of outstanding performances has been produced with this technology utilizing amylose , glucose and saccharose abounding in the nature through simple burning and sulfonation processes .

新型生物柴油生产用固体酸催化剂生产技术本技术利用自然界大量存在的多糖，葡萄糖和蔗糖等经过简单的灼烧磺化制备出性能突出的固体酸催化剂，该催化剂不溶于水，乙醇，甲醇，植物油脂和生物柴油。

Experimental study on the economy and emission characteristics has important value for serviceability of biodiesel.

生物柴油经济性能和排放特性的试验对研究生物柴油的适用性具有重要意义。

The results show that the solidifying point and pour point of bio-diesel are affected by the fatty acid composition.

结果表明，生物柴油的凝点和冷滤点值受其脂肪酸甲酯分布的影响，饱和脂肪酸甲酯含量高的生物柴油，其凝点和冷滤点值也相应较高。

For the synthesis reaction of chalcone, cyclohexanone aldolization and biodiesel,γ-Al_2O_3-NaOH-Na solid superacid has a satisfactory catalytic activity. With hypnone and phenylaldehyde as raw material, amount of catalyst 7.5% wt% of material, mole ratio of hypnone and phenylaldehyde 1:1.1, reaction temperature 40℃, after 3 hours, the yield of chalcone can be up to 96.88%. With cyclohexanone as raw material, amount of catalyst 10% wt% of material, reaction temperature 190℃, after 3 hours, dimmer of cyclohexanone can be up to 85.66%.

将该固体超强碱催化剂应用于查尔酮、环己酮自缩合以及生物柴油的合成反应中，该改性固体超强碱催化剂表现出了良好的催化活性：以苯乙酮和苯甲醛为原料，反应温度为40℃，催化剂用量为反应物总质量的7.5％，苯甲醛与苯乙酮摩尔比为1：1.1，反应3h查尔酮产率可达96.88％；以环已酮为原料，催化剂用量为原料总质量的10％，反应温度为190℃，反应3h，二聚物的总收率可达85.66％；以动物油和甲醇为原料，醇油摩尔为9：1，催化剂用量为动物油质量的2％，反应温度为70℃，反应3h后，生物柴油的收率可达91.8％。

Synthesis of biodiesel by transesterification of rapeseed oil and methanol catalyzed by KOH/Al2O3 solid base was studied. The catalyst was prepared by isochoric impregnation. Effects of some factors on the transesterification were investigated systematically and reaction conditions were optimized. The optimum reaction conditions on KOH/Al2O3 catalyst were: mass ratio of KOH to Al2O3 20%; calcination temperature 400℃ for 5h; molar ratio of methanol to oil 12:1, the amount of catalyst 5wt%; reaction temperature 60℃ and reaction time 2h.

采用等体积浸渍法制备了KOH/Al2O3负载型固体碱催化剂，并将其用于菜籽油与甲醇酯交换法合成生物柴油的研究；分别考察了催化剂附载量、锻烧温度、醇油摩尔比、反应温度、反应时间等条件对生物柴油产率的影响；结果表明：用等体积浸渍法，在400℃煅烧5h，制得负载量为20%的KOH/Al2O3催化剂。

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。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。