Modelling and experimental investigation of effects of moisture and operating parameters during the adsorption of CO2 onto polyaspartamide
Kelvin O.Yoro
Mutiu K.Amosa
Patrick T.Sekoai
Michael O.Daramola
摘要：Parametric effect of moisture and influence of operating variables on the adsorption behaviour of polyaspartamide during CO2 capture was investigated in this study using experimental and modelling approach.Individual effects of operating conditions (e.g.pressure,temperature and gas flow rates) as well as the effect of moisture on the adsorption capacity of polyaspartamide were methodically investigated using Dubinin-Raduskevich model.Results from the investigations reveal that the presence of moisture in the flue gas had an incremental effect on the adsorption capacity of polyaspartamide;thereby showcasing the potential of polyaspartamide as a suitable hydrophilic material for CO2 capture in power plants.In addition,pressure,temperature and gas flow rates at 200 kPa,403 K,and 1.5 mL/s,respectively,significantly influenced the CO2 adsorption capacity of polyaspartamide.Physisorption and chemisorption both governed the adsorption process while equilibrium studies at different temperatures showed that Langmuir isotherm could adequately describe the adsorption behaviour of the material with best fit with R2 ＞ 0.95.
机标关键词：
资助基金：The financial support received from the National Research Foundation of South Africa(NRF—block Grant Number 107867)University of the Witwatersrand through the Postgraduate Merit Award (WITS-PMA 2018)
论文发表日期：2019-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：10( 225-234 )
英文信息