Study of adsorption equilibrium and kinetics models for designing $CO_2$ adsorption process = 이산화탄소 흡착 공정 설계를 위한 흡착 평형 및 동특성 모델 연구

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This study focuses on the evaluation of isotherm models for the precise prediction of adsorption equilibrium and breakthrough dynamics. For this, the evaluation was performed using pure $N_2$, $CO_2$ and their binary mixture gas with an activated carbon (AC, Norit RB3) as an adsorbent. Both BET and breakthrough experiments were conducted at various conditions of temperature and pressure. The corresponding uptake amount of pure component adsorption was experimentally determined, and parameters of the four different isotherm models, Langmuir, Langmuir-Freundlich, Sips, and Toth, were estimated from experimental data. Then, the predictive power of each isotherm model was also evaluated with the binary experimental results of binary $N_2/CO_2$ mixtures, by means of sum of square errors (SSE). As a result, the Toth model was the most precise isotherm model in describing $CO_2$ adsorption equilibrium on the AC. Based on the breakthrough experimental result from the binary mixture adsorption, non-isothermal modeling for the adsorption bed was performed. A process simulator was used for examining breakthrough results for all of the isotherm models to precisely predict its adsorption dynamics and the Toth model was the most accurate model of all four isotherm models.
Advisors
Lee, Jae Wooresearcher이재우researcher
Description
한국과학기술원 :생명화학공학과,
Publisher
한국과학기술원
Issue Date
2017
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2017.2,[iii, 37 p. :]

Keywords

Carbon dioxide; Adsorption; Isotherm model; Adsorption kinetics; Breakthrough Curve; 이산화탄소; 흡착; 등온선 모델; 흡착 동특성; 파과 곡선

URI
http://hdl.handle.net/10203/243058
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=675563&flag=dissertation
Appears in Collection
CBE-Theses_Master(석사논문)
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