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首页> 外文期刊>Energy Conversion & Management >Effects of mixing technologies on continuous methyl ester production: Comparison of using plug flow, static mixer, and ultrasound clamp
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Effects of mixing technologies on continuous methyl ester production: Comparison of using plug flow, static mixer, and ultrasound clamp

机译：混合技术对连续甲酯生产的影响：使用活塞流，静态混合器和超声钳的比较

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Four types of continuous reactors, namely plug flow reactor (PF), static mixer reactor (SM), ultrasound clamp on tubular reactor (US), and static mixer combined with ultrasound (SM/US) were compared for their purities of methyl ester in biodiesel production from refined palm oil (RPO). The reactor conditions were: KOH 4, 6, 8, 10, and 12 g L-1, methanol content 20 vol.%, and under 20 L h(-1) RPO flow rate at 60 degrees C temperature. The highest purity of methyl esters: 81.99 wt.% for PF, 95.70 wt.% for SM, 98.98 wt.% for US, and 97.67 wt.% for SM/US, were achieved with 900 mm, 900 mm, 700 mm, and 900 mm reactor lengths respectively, and 12 g L-1 of KOH was used in all cases. The 16 x 400 W ultrasound clamp was operated at 20 kHz frequency, and among short length reactors the US case was more effective than PF, SM, or SW US. Moreover, ester purity from the US reactor was slightly decreased by the lowest 4 g L-1 KOH. The US reactor was clearly superior over the other types of continuous reactor, and had the potential to reduce KOH consumption by sonochemical effects on the base-catalyzed transesterification reaction. (C) 2017 Elsevier Ltd. All rights reserved.
机译：比较了四种类型的连续反应器，即活塞流反应器（PF），静态混合器反应器（SM），管式反应器上的超声夹（US）以及与超声结合的静态混合器（SM / US）的纯度。精炼棕榈油（RPO）生产生物柴油。反应器条件为：KOH 4、6、8、10和12 g L-1，甲醇含量为20 vol。％，并且在60℃的温度下RPO流量为20 L h（-1）。甲基酯的最高纯度：900 mm，900 mm，700 mm，PF达到81.99 wt。％，SM为95.70 wt。％，US为98.98 wt。％，SM / US为97.67 wt。％。在所有情况下，反应器的长度分别为900和1000 mm，KOH的使用量为12 g L-1。 16 x 400 W超声钳以20 kHz的频率运行，在短长度反应堆中，美国的情况比PF，SM或SW US更有效。而且，来自美国反应器的酯纯度因最低的4 g L-1 KOH而略有降低。 US反应器明显优于其他类型的连续反应器，并具有通过对碱催化的酯交换反应进行声化学作用来降低KOH消耗的潜力。 （C）2017 Elsevier Ltd.保留所有权利。

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