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   棕榈油 在 燃料化工 分类中 的翻译结果: 查询用时:0.466秒
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棕榈油
相关语句
  palm oil
    The results showed that FAME yield reached 90% at 11. 6% methyl tertiary butyl ether by weight of palm oil, 1. 0% NaOH by weight of palm oil 6:1 ratio of methanol to palm oil and 60℃ within 2 min of reaction time.
    实验结果表明,当叔丁醇用量为棕榈油质量的11.6%,催化剂用量为油质量的1.0%,反应温度为60℃,醇油摩尔比为6:1时,反应2分钟后生物柴油产率达到了90%以上。
    TRANSESTERIFICATION OF PALM OIL TO BIODIESEL WITH METHYL TERTIARY BUTYL ETHERAS A CO-SOLVENT
    叔丁醇共溶剂法催化酯交换棕榈油制备生物柴油研究
    The optimal process parameter of seven deffirent materials (waste fat from restaurant, Jatropha Curcas oil, rape oil, soybean oil, linseed oil, peanut oil, palm oil) of producing biodiesel is studied with this technique and experiment equipment.
    采用该技术工艺和装置研究了7种不同的原料油(餐饮业废油、小桐子油、菜籽油、大豆油、亚麻油、花生油和棕榈油)生产生物柴油的最佳工艺参数,获得的主要工艺参数为:
短句来源
  “棕榈油”译为未确定词的双语例句
    Biodiesel Fuel Preparation for Plam Oil
    棕榈油制备生物柴油研究
短句来源
    The experimental data appear to be described by pseudo second-order model for the initial stages of the reaction and followed by first-order and zero-order-model, similar to those reported by Darnoko D and et al.
    由实验数据绘制的动力学曲线得到酯交换反应在开始阶段为准二级反应,以后紧接转为一级反应和零级反应,与文献报导的棕榈油酯交换反应动力学结果一致。
短句来源
  相似匹配句对
    Biodiesel Fuel Preparation for Plam Oil
    棕榈油制备生物柴油研究
短句来源
    TRANSESTERIFICATION OF PALM OIL TO BIODIESEL WITH METHYL TERTIARY BUTYL ETHERAS A CO-SOLVENT
    叔丁醇共溶剂法催化酯交换棕榈油制备生物柴油研究
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  palm oil
Red palm oil in the maternal diet increases provitamin A carotenoids in breastmilk and serum of the mother-infant dyad
      
Aim of the study We investigated the effectiveness of short-term dietary supplementation of mothers with red palm oil as a strategy for improving the vitamin A status of the mother-infant dyad.
      
Methods Lactating mothers in Colonia Los Pinos, a barrio of Tegucigalpa, Honduras, consumed a total of 90-mg β-carotene as red palm oil (n = 32) supplements (n = 36) or placebo (n = 18) in six equal doses over 10 days.
      
Results Maternal serum α-carotene and β-carotene concentrations were increased 2 fold by palm oil compared with 1.2 fold by β-carotene supplements.
      
Increases in breastmilk β-carotene were greater for the palm oil group (2.5 fold) than for the β-carotene supplement group (1.6 fold) and increases in milk α-carotene concentrations (3.2 fold) were slightly greater than those of β-carotene.
      
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Synthetic esters were tested as oiliness additives and were compared with palm oil.The results show that octyl stearate can enhance the lubricity of mineral oil and its effect of compound with sulphur additive and chlorine additive are equal to that of palm oil,and it also can improve anti-oxidantion,prolong oil life and decrease remarkably cost.Therefor,octyl stearate can replace the palm oil as oiliness additives.

采用合成酯作为油性剂,与棕榈油进行了一系列的对比试验。结果表明,硬脂酸辛酯不仅在改善矿物油的润滑性及与硫、氯极压添加剂的复合效果方面与棕榈油相当,而且改善了抗氧化性,大幅度延长了油品的使用寿命,综合成本会显著下降。因此,硬脂酸辛酯可以代替棕榈油作油性剂使用。

The pretreatment of esterificafion to plam oil that had high acid value was carried out by using sulfuric acid as catalyst.Through orthogonal analysis,the optimum reaction conditions obtained for the esterification were set at temperature 70℃,reaction time 3 hours,ratio of concentrated sulfuric acid to plam oil 1.0%(on plam oil mass) and the acid value of plato oil was 2.4 mg KOH/g.The transesterification of the treated plam oil and methanol was carried out by using sodium hydroxide to produce fatty methyl ester.Through...

The pretreatment of esterificafion to plam oil that had high acid value was carried out by using sulfuric acid as catalyst.Through orthogonal analysis,the optimum reaction conditions obtained for the esterification were set at temperature 70℃,reaction time 3 hours,ratio of concentrated sulfuric acid to plam oil 1.0%(on plam oil mass) and the acid value of plato oil was 2.4 mg KOH/g.The transesterification of the treated plam oil and methanol was carried out by using sodium hydroxide to produce fatty methyl ester.Through orthogonal analysis,the optimum reacting conditions obtained for the transesterification were set at temperature 60℃,reaction time 1 hours,and catalyst dosage 1.0 %(on plain oil mass).The conversion of tran sterification was 95.89%,and the yield of biodiesel fuel was 95.6%.The principal physicochemical properties of the biodiesel fuel from palm oil were similar to that of diesel fuel.But the pour point was higher.So the biodiesel fuel should be blended with diesel or added pour point depressants.

通过利用浓硫酸作催化剂对酸值较高的棕榈油进行预酯化,采用正交实验的方法来研究预酯化的最优工艺条件,预酯化反应温度为70℃,反应时间为1.0 h,催化剂H2SO4的用量为1.0%(油重),棕榈油的酸值降到2.4 mg KOH/g油。预酯化后的棕榈油与甲醇在氢氧化钾作为催化剂进行酯交换反应得到脂肪酸甲酯,采用正交实验的方法来研究酯交换反应的最优工艺条件,酯交换反应温度为60℃,反应时间为10 h,催化剂KOH的用量为1.0%(油重),酯交换反应的转化率为95.89%,生物柴油总得率为95.6%。以棕榈油为原料制备的生物柴油,其主要性能符合柴油标准,但倾点较高,需与柴油馏分调合或加降凝剂以达到柴油标准。

Biodiesel samples were prepared from different vegetable oils including rapeseed(RME),soybean(SME),palm(PME) and waste cooking(FWME) oils.All the four biodiesels were mixed with mineral diesel to produce B5,B10,B20 samples,in which 5%,10% and 20% biodiesel was added to the mineral diesel respectively.B100 was the corresponding biodiesel of RME,SME,PME and FWME without mineral biodiesel.Samples of B5,B10,B20,B100 and mineral diesel were incubated under the condition of 63℃±2℃ in an oven and peroxide value,acid...

Biodiesel samples were prepared from different vegetable oils including rapeseed(RME),soybean(SME),palm(PME) and waste cooking(FWME) oils.All the four biodiesels were mixed with mineral diesel to produce B5,B10,B20 samples,in which 5%,10% and 20% biodiesel was added to the mineral diesel respectively.B100 was the corresponding biodiesel of RME,SME,PME and FWME without mineral biodiesel.Samples of B5,B10,B20,B100 and mineral diesel were incubated under the condition of 63℃±2℃ in an oven and peroxide value,acid value and TEP value were quantified after incubation.Effect of metal medium on oxidation stability of B100 biodiesel was also investigated.The results showed that oxidation stability of FWME was highest,followed by RME,PME and SME,while the mineral diesel was most stable.Among B5,B10,B20 and B100 of all the four biodiesel products,the oxidation decreased with increase of biodiesel ratio.The metal medium such as copper had catalysis to oxidation of biodiesel and mineral diesel.

采用烘箱法,将样品置于63℃±2℃的培养箱中,定时取样检测样品过氧化值、酸值、硫代巴比妥酸值,考察B5、B10、B20、B100菜籽油生物柴油(RME)、大豆油生物柴油(SME)、棕榈油生物柴油(PME)、废煎炸油生物柴油(FWME)和0#柴油氧化稳定性,同时考察金属介质对B100生物柴油氧化稳定性的影响。结果表明,4种生物柴油的氧化稳定性依次为FWME>RME>PME>SME,而0#柴油氧化稳定性优于生物柴油;B5、B10、B20生物柴油样品表现出较好的氧化稳定性,但随着样品中生物柴油添加比例的增加,其酸值升高,样品的氧化主要是生物柴油氧化导致的;金属铜对生物柴油和0#柴油的氧化均有催化作用,金属铁的催化作用不明显。

 
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