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几种有机废气吸收液对甲苯吸收效果的对比

Keywords: 甲苯废气,吸收液,吸收效果,对比研究

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Abstract:

采用自行设计的吸收装置,对比研究了国内外文献报道的几种有机废气吸收液(二乙基羟胺、聚乙二醇400、硅油、食用油、废机油、0#柴油)对模拟甲苯废气的吸收效果。结果表明,通过改变吸收液种类、废气中甲苯浓度等条件能够对甲苯废气吸收效果产生显著影响。随着吸收时间的延长,吸收液对甲苯的吸收率逐渐降低,直至达到动态饱和。随甲苯废气中甲苯浓度的增大,吸收液的有效吸收量减小,而饱和吸收量则增大。在相同实验条件下,二乙基羟胺对甲苯的有效吸收量与饱和吸收量均最大,其次是食用油、机油、0#柴油,而聚乙二醇与硅油吸收效果最差。本研究结果为合理选择甲苯废气的高效吸收液提供了理论依据。

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