垂直上昇薄膜管型硫酸化反応装置の最適化

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  • Optimization of a rising-film tubular reactor for sulfation.
  • スイチョク ジョウショウ ハクマクカンガタ リュウサンカ ハンノウ ソウチ ノ

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A rising-film tubular reactor was used for sulfation of fatty saturated higher alcohol with a gas mixture of SO3 gas and air. The selectivity of sulfation was studied. The sulfation is accompanied by side reactions which reduce the yield of alkyl ether sulfate. A quantitative study was carried out on the presumption that the alkyl ether sulfate reacts further with SO3 to form inactive products.<BR>The ratio of reaction rate constants between the main and the side reactions was obtained quantitatively and it was found that the side reaction proceeds more rapidly at higher temperature.<BR>It was made clear that an industrial large-scale reactor should be designed as a reactor consisting of a plurality of parallel tubes with smaller diameter because the reaction temperature rises with increasing tube diameter.

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