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http://dx.doi.org/10.7464/ksct.2017.23.3.286

Effect of K2CO3 Loading on the Adsorption Performance of Inorganic Adsorbent for H2S Removal  

Jang, Kil Nam (MADI Co., Ltd.)
Song, Young Sang (MADI Co., Ltd.)
Hong, Ji Sook (Korea Research Institute of Chemical Technology)
You, Young-Woo (Korea Research Institute of Chemical Technology)
Hwang, Taek Sung (Chungnam National University)
Publication Information
Clean Technology / v.23, no.3, 2017 , pp. 286-293 More about this Journal
Abstract
The goal of this paper was to improve the performance of the adsorbent to remove $H_2S$. Pellet type adsorbents were prepared by using four kinds of materials ($Fe_2O_3$, $Ca(OH)_2$, Activated carbon, $Al(OH)_2)$ for use as a basic carrier. As the results of $H_2S$ adsorption tests, $Fe_2O_3$ and Activated Carbon improved the adsorption performance of $H_2S$ by 1.5 ~ 2 times, and $Ca(OH)_2$ and $Al(OH)_2$ showed no effect on $H_2S$ adsorption performance. Four basic materials were as carriers, and 5 wt% of KI, KOH and $K_2CO_3$ were added on the carriers, respectively. As the results of $H_2S$ adsorption tests, adsorbent containing $K_2CO_3$ showed the best performance. As a result of $H_2S$ adsorption test with varying $K_2CO_3$ content from 5 to 30 wt%, it was confirmed that adsorption performance was increased up to 20 wt% of $K_2CO_3$ and adsorption performance decreased to 30 wt%. The $H_2S$ adsorption performance was modeled by using Thomas model with varying $K_2CO_3$ contents and the results were used for the adsorption tower design. It was shown that the experimental values and the simulated values were in good agreement with the contents range of $K_2CO_3$ up to 20 wt%. Based on these results, it is expected that not only the adsorption performance of $H_2S$ adsorbent is improved but also life time of the adsorbent is increased.
Keywords
$H_2S$; Adsorbent; Odor gas; $K_2CO_3$; Biogas;
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Times Cited By KSCI : 3  (Citation Analysis)
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