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米糠油制備生物柴油的工藝優(yōu)化和燃料特性
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    摘要:

    研究了米糠油在KOH為催化劑的作用下通過甲酯化反應(yīng)制備生物柴油的工藝,?？疾炝舜加湍柋?、催化劑用量、反應(yīng)溫度,、反應(yīng)時間對轉(zhuǎn)化率的影響，采用氣相色譜測定了反應(yīng)體系中脂肪酸甲酯的轉(zhuǎn)化率,。應(yīng)用正交實(shí)驗(yàn)確定了米糠油酯交換的最佳反應(yīng)條件為：醇油摩爾比6,、催化劑質(zhì)量分?jǐn)?shù)0.9％、反應(yīng)溫度50℃,、反應(yīng)時間45 min,。通過實(shí)驗(yàn)對其燃料性能進(jìn)行研究，將各項(xiàng)燃料性能和美國ATSM或德國DIN標(biāo)準(zhǔn)進(jìn)行比較,，均達(dá)到相關(guān)標(biāo)準(zhǔn),。測定了燃用生物柴油的柴油機(jī)輸出功率、油耗及其排放性能,，并與0號柴油進(jìn)行了比較,，其燃料性能和0號柴油相當(dāng)，并可顯著降低CO,、HC排放量,，而NOx排放量略有升高。

    Abstract:

    A research was reported that biodiesel was produced by alkaline-catalyzed transesterification of rice bran oil. The content of methyl ester was analyzed by chromatographic analysis. Through orthogonal analysis of parameters in a four-factor and three-level test, the optimum condition was obtained for the transesterification: molar ratio of oil was 6, usage amount of KOH was 0.9%, reaction temperature was 50℃ and reaction duration was 45 min. Fuel properties of RBO biodiesel were studied and compared with American and European standards for biodiesel Fuel properties are very similar to those of 0＃diesel. Emission tests have shown a marked decrease in CO, HC and slight increase in NOx.

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董英,林琳,徐自明,徐斌.米糠油制備生物柴油的工藝優(yōu)化和燃料特性[J].農(nóng)業(yè)機(jī)械學(xué)報,2007,38(10):80-83.[J]. Transactions of the Chinese Society for Agricultural Machinery,2007,38(10):80-83.

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