摘要
在鼓泡塔内,蒸馏条件下,实验研究了吸附剂细粉（小于10μm）对气液两相传质的影响。所用的吸附剂为4A和13X分子筛。实验发现在固含率ε_m不高于10%且对较低沸点组分有强烈吸附作用的吸附剂颗粒可以强化气液两相传质,提出了吸剂细粉强化传质的机理。根据渗透理论和对吸附等温线的线性化处理,导出相应的数学的模型,模型计算值与实验结果比较吻合。
The effect of fine adsorbent particles on gas - liquid mass transfer under distillation condition was studied in a bubble column, by using4A and 13X (in micron) as molecular sieve. It was found that the fine adsorbent particles cannot enhance gas - liquid mass transport unless adsorbents have strong adsorption on the less volatile components. The enhancement, however, has a limit up to a certain percentage of solids content, for example, about 10% in our experiment. Our experimental study confirms the predicted values from the model calculation.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1999年第6期772-777,共6页
CIESC Journal
基金
国家自然科学基金资助项目(No.29376255)
关键词
吸附剂
细粉
鼓泡塔
气液传质
气液两相
fine adsorbent particles, bubble column, enhancement factor, gas - liquid mass transfer
