Adsorption deformation of a microporous AR-V carbon adsorbent during the adsorption of n-hexane
Adsorption deformation of a microporous AR-V carbon adsorbent during the adsorption of n-hexane
复制标题
微孔AR-V碳吸附剂吸附正己烷过程中的吸附变形
DOI：
10.1134/s0036024411110227
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发表时间：
2011
影响因子：
0.7
通讯作者：
A. V. Tvardovskiy
中科院分区：
文献类型：
--
作者：
V. V. Nabiulin;A. Fomkin;A. V. Tvardovskiy
在1 Pa ~ 20 kPa的压力范围内，温度为254.8 ~ 353 K，测量了AR-V碳吸附剂对正己烷的吸附等温线和吸附变形等温线。结果表明，除初始压力范围（p < 800 Pa）外，相对线性变形随压力升高而增大，随温度升高而减小。在254.8、273.2和293 K温度下，吸附和吸附变形曲线在接近饱和蒸汽压的区域表现出滞后。结果表明，当压力低于800 Pa时，微孔AR-V碳吸附剂在高温范围内发生收缩。结果表明，随着温度的降低，吸附剂对压力的收缩范围逐渐缩小，并在254.8 K时发生退化。
Adsorption isotherms of n-hexane and adsorption deformation isotherms of an AR-V carbon adsorbent are measured in a pressure range of 1 Pa to 20 kPa at temperatures of 254.8–353 K. It is found that, except for the initial pressure range (p < 800 Pa), the relative linear deformation increases with increasing pressure and decreases with increasing temperature. At temperatures of 254.8, 273.2, and 293 K, the curves of adsorption and adsorption deformation exhibit hysteresis in the region close to the saturated vapor pressure. It is noted that, at pressures below 800 Pa, microporous AR-V carbon adsorbent undergoes contraction in the range of high temperatures. It is revealed that the contraction range of the adsorbent with respect to pressure gradually narrows with decreasing temperature and degenerates at 254.8 K.