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Glycerol as a by-product is yielded at about 10% of biodiesel during the process of biodiesel production .How to convert glycerol has become a common problem which has to be resolved if considering large amount of biodiesel production. 1,3-propanediol is a valuable chemical material and especially it could be copolymerizes with terephthalic acid to form polytrimethylene terephthalate, which has aroused people's interesting.

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In Malaysia, an important center for palm-oil biodiesel production, the government has held back on plans to require biodiesel blends at petrol stations because of a fear it could drive palm-oil prices too high, imperiling the country's nascent biodiesel industry.

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Thinking of presenting problems, this research mainly studied some solid base catalysts which own higher catalysis ability and longer lifetime. Then, the phase diagram and equilibrium data of oil-alcohol-biodiesel-glycerol multiphase system were measured because the biodiesel producing process lacks of thermodynamic data.Based on a double-membranes theory and the thermodynamic data, a kinetic model was proposed. In addition, a mult-step extraction process was proposed to dispose the jatropha curcas l oil with high acid value in order to decrease the acid value. Then, a new technology of biodiesel producing using solid base as a catalyst was developed. The study objects and results are as follows.

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avian influenza：禽流感

在最近一期>中,便出現(xiàn)了"禽流感"(avian influenza)、"生物柴油"(biodiesel)欧美在线看免费vA、"馬甲"(sock puppet)五月婷丁香综合网、"快閃族"(flash mob)等等,此次編輯,吳光華也把這些外國新詞增補進來.

flash point：閃火點

生質(zhì)柴油(Biodiesel)系經(jīng)有關專業(yè)單位證明為有效的柴油車輛引擎的燃料,可改善引擎排放廢氣的品質(zhì)并不需修改既有石化柴油引擎有關設備,直接可使用或做為石化柴油添加劑,其十六烷值比石化柴油為高,閃火點(Flash point)較低,可安全使用并經(jīng)美國環(huán)保署(EPA)將B100(純生質(zhì)柴油,

Junker：很破的舊車

Metric: 公制的,公尺的 | Junker: 很破的舊車 | Biodiesel: 生物柴油