JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2016, Vol. 46 ›› Issue (5): 120-125.doi: 10.6040/j.issn.1672-3961.0.2016.255

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Comprehensive performance test and analysis of adsorbent

DONG Zhen1, LAI Yanhua1, LYU Mingxin2, ZHENG Haoyu1, PAN Jihong1   

  1. 1.School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China;
    2. Suzhou Institute, Shandong University, Suzou 215028, Jiangsu, China
  • Received:2016-07-11 Online:2016-10-20 Published:2016-07-11

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Abstract: In order to overcome the limitations and measurement errors of adsorption performance by volumetric method, thermostatic water-bath was inducted to reduce measurement errors caused by temperatures fluctuation of gas tank and gas condensation. Uniform reaction and highly sensitive sheathed thermocouple was realized by a novel reactor. Volume of each part was accurately calibrated by precise bearing steel-balls, and relative error of volume was not more than 0.5%. Based on error impress principle,relative error of the measuring system was lower than 2%, and comprehensive performance test and analysis of adsorbent was satisfied.According to principle of volumetric method and adsorption characteristics of alkali halide salts, the new test processes of equilibrium state, kinetic and decay were designed, and were used to test ad-/desorption performance of CaCl2 and its composite adsorbents. The equilibrium curves and pseudo equilibrium area were obtained. Tests of ad-/desorption kinetics and temperature curves during temperature and pressure changes, and methods of quantitative and qualitative analyses were achieved. Adsorption kinetics curves and maximal adsorption capacity after variant ad-/desorption cycles were given. Application range of volumetric method was extended. Feasibility of measuring system and test processes was confirmed, which could provide highly efficient testing theory and analyze methods in the research process of adsorbent.

Key words: adsorbent, volume calibration, kinetics, volumetric method, decay, equilibrium state

CLC Number: 

  • TK124
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