Adsorption equilibrium and kinetics for SO2, NO, CO2 on zeolites FAU and LTA

Yi, Honghong; Deng, Hua; Tang, Xiaolong; Yu, Qiongfen; Zhou, Xuan; Liu, Haiyan

doi:10.1016/j.jhazmat.2011.11.091

Cited by 148 publications

(54 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…desulfurization of fuel (Muzic et al 2012) or oil refining (Zhu et al 2013)], and environment engineering [i.e. to remove of ammonium ions (Franus and Wdowin 2010;Liu et al 2012) or heavy metals from waters and waste water (Merrikhpour and Jalali 2013;Wang et al 2009) or separation/adsorption of gases such as CO 2 (Walton et al 2006;Wdowin et al 2012), SO 2 (Yi et al 2012) or mercury (Morency et al 2002), and removal of radionuclides from the mine waters (Chałupnik et al 2013)]. …”

Section: Introductionmentioning

confidence: 99%

The conversion technology of fly ash into zeolites

Wdowin

Franus

Panek

et al. 2014

Clean Techn Environ Policy

202

View full text Add to dashboard Cite

This paper presents a sub-pilot scale process of synthesis of Na-P1 zeolite from the coal fly ash. After establishing the appropriate synthesis conditions (20 kg of fly ash, 12 kg of NaOH, 90 dm 3 of water, the reaction temperature: 80°C and reaction time: 36 h), the highpurity (81 wt%) Na-P1 zeolite product was obtained. Its chemical, mineralogical, and textural properties were determined (by means of XRD, XRF, SEM-EDS and ASAP 2020). The synthesized material has a specific BET surface area (88 m 2 /g) c.a. six times higher than the fly ash from which it has been derived (15 m 2 /g). The pore-size distribution indicates a mesoporous character of the obtained zeolite, with the following pores size contents: micropores (2.76 %), mesopores (61.81 %), and macropores (35.43 %). The presented technological/production line is fully automated and allows to regulate the conditions of the synthesis process, therefore different types of zeolite materials (including: Na-X, Linde-A, and Na-P1) can be obtained using the same equipment.

show abstract

Section: Introductionmentioning

confidence: 99%

The conversion technology of fly ash into zeolites

Wdowin

Franus

Panek

et al. 2014

Clean Techn Environ Policy

202

View full text Add to dashboard Cite

show abstract

“…Currently, a variety of mathematical models have been used to describe and predict the breakthrough curves of a column adsorption system in liquid or gaseous phase (Abu-Lail et al, 2012;Cheknane et al, 2012;Meng et al, 2012;Nwabanne and Igbokwe, 2012;Yi et al, 2012;Zhao et al, 2012), but there is still lack of a comprehensive review of these models. The main objective of the present review is to introduce the modeling of dynamic adsorption in liquid phase.…”

Section: Introductionmentioning

confidence: 99%

Mathematically modeling fixed-bed adsorption in aqueous systems

Cai

Pan

2013

J. Zhejiang Univ. Sci. A

345

166

View full text Add to dashboard Cite

Adsorption is one of the widely used processes in the chemical industry environmental application. As compared to mathematical models proposed to describe batch adsorption in terms of isotherm and kinetic behavior, insufficient models are available to describe and predict fixed-bed or column adsorption, though the latter one is the main option in practical application. The present review first provides a brief summary on basic concepts and mathematic models to describe the mass transfer and isotherm behavior of batch adsorption, which dominate the column adsorption behavior in nature. Afterwards, the widely used models developed to predict the breakthrough curve, i.e., the general rate models, linear driving force (LDF) model, wave propagation theory model, constant pattern model, Clark model, Thomas model, Bohart-Adams model, Yoon-Nelson model, Wang model, Wolborska model, and modified dose-response model, are briefly introduced from the mechanism and mathematical viewpoint. Their basic characteristics, including the advantages and inherit shortcomings, are also discussed. This review could help those interested in column adsorption to reasonably choose or develop an accurate and convenient model for their study and practical application.

show abstract

“…They offer 5e10 fold higher CO 2 /N 2 selectivity compared with carbonaceous materials (Chue et al, 1995;Songolzadeh et al, 2012). The CO 2 adsorption kinetics on zeolites can be ranked among the fastest known, reaching their equilibrium capacity within few minutes in most cases (Yi et al, 2012;Choi et al, 2009). They exhibit good cyclic stability, and mechanical stability to shape them into granules, spheres and extrudates (Zhao et al, 2007a;Silva et al, 2012).…”

Section: Zeolitesmentioning

confidence: 99%