摘要
以环己酮塔顶液为研究对象,用分子筛作吸附剂,利用分子筛对杂质的物理和化学吸附作用,对含有己醛和2-庚酮等多种杂质的环己酮液体进行了吸附研究。分别考察了分子筛的硅铝比、吸附时间、吸附温度和吸附剂的添加量对己醛和2-庚酮的吸附去除效果。硅铝比为80的分子筛对己醛和2-庚酮的吸附效果最好,且吸附温度为30℃,吸附时间为24 h,剂油比为0.08 g/m3时,己醛去除率达到99.52%,2-庚酮去除率达100%。
ZSM-5 Molecular sieves with different Si/Al ratios were investigated for the adsorption of hexanal and 2-heptanone in cyclohexanone.The effects of the adsorption time,the adsorption temperature and the amount of the adsorbent were investigated.Best results were obtained under the following conditions：n（Si）∶n（Al）=80∶1,adsorption time 24 h,adsorption temperature 30℃ and the ratio of zeolite to cyclohexanone 0.08 g/m3.The removal rates were 99.52% and 100% for hexanal and 2-heptanone,respectively.
出处
《精细化工中间体》
CAS
2011年第6期58-60,共3页
Fine Chemical Intermediates
基金
湖南省大学生研究性学习和创新性实验计划项目(2011009)
关键词
分子筛
环己酮
己醛
2-庚酮
吸附
zeolite
cyclohexanone
hexanal
2-heptanone
adsorption
