利用气相色谱仪进行吸收反应速率常数的测定  

Determination of Reaction Rate Constant in CO2 Absorption with Gas Chromatograph- based Apparatus

作　　者：王长泰[1] 欧阳瑞珍[1] 林诚[1] 王星 

机构地区：[1]福州大学,350002

出　　处：《色谱》1993年第3期162-164,共3页Chinese Journal of Chromatography

基　　金：福建省自然科学基金资助课题

摘　　要：为了测定气液化学吸收过程的反应速率常数和其它吸收过程参数,国内外曾采用精心设计加工的湿壁塔、湿壁球、层流射流器和转鼓等装置。它们多数存在所谓端末效应(End effect)、进口效应(Entrance effect)、刚性膜(Rigid film)和波纹的干扰以及气液界面处液流速的准确估测问题。 作者最近提出一种将脉冲-响应技术同静止吸收液相结合的测定吸收参数新法,并完成了数学模型分析。根据分析,若被吸收气体的一个脉冲气样流经长度L、宽度W的静止吸收液池,则部分气样将溶入吸收液,进而边扩散进入液内,边同吸收剂反应。若该反应为一级不可逆反应或拟一级不可逆反应,则反应速率常数为:Determination of reaction rate constant of CO2 in reacting with Na2CO3-NaHCO3 buffer solution in gas-liquid che.-nical absorption process was performed at 25℃ in an apparatus installed in a gas chromato-graph. This is based on the combination of pulse-response technique and quiscent absorbent. The signal output was connected to a computerized data acquisition system. The results show the suitability of the new method and the appropriateness of the apparatus for the determination of absorption parameters. It is also simple in structure, easy to operate and feasible to be computerized.

关 键 词：吸收过程 反应速率常数 气相色谱 

分 类 号：O643.13[理学—物理化学]