Studies on CO2 Adsorption and Desorption Properties from Various Types of Iron Oxides (FeO, Fe2O3, and Fe3O4)

2016 ◽  
Vol 55 (29) ◽  
pp. 7888-7897 ◽  
Author(s):  
Azizul Hakim ◽  
Tengku S. Marliza ◽  
Najiha M. Abu Tahari ◽  
Roslam W. N. Wan Isahak ◽  
Rahimi M. Yusop ◽  
...  
Keyword(s):  
Iron Oxides ◽  
Co2 Adsorption ◽  
Adsorption And Desorption

Study on the mechanism of the influence of HNO3 and HF acid treatment on the CO2 adsorption and desorption characteristics of coal

Fuel ◽  
2022 ◽  
Vol 309 ◽  
pp. 122187
Author(s):  
Haoran Dou ◽  
Jingna Xie ◽  
Jun Xie ◽  
Gongshuai Sun ◽  
Zhao Li ◽  
...  
Keyword(s):  
Acid Treatment ◽  
Co2 Adsorption ◽  
Adsorption And Desorption

Comparative Adsorption Isotherm for Beryllium Oxide/Iron (III) Oxide Toward CO2 Adsorption and Desorption Studies

2020 ◽  
Vol 1010 ◽  
pp. 361-366
Author(s):  
Azizul Hakim Lahuri ◽  
Mohd Ambar Yarmo ◽  
Maratun Najiha Abu Tahari ◽  
Tengku Sharifah Marliza ◽  
Tengku Shafazila Tengku Saharuddin ◽  
...  
Keyword(s):  
Adsorption Isotherm ◽  
Adsorption Process ◽  
Co2 Adsorption ◽  
Freundlich Isotherm ◽  
Beryllium Oxide ◽  
Isotherm Models ◽  
Free Energy Of Adsorption ◽  
Adsorption And Desorption ◽  
Different Temperatures ◽  
Physical Phenomena

Surface modification of Fe2O3 by adding BeO was synthesized and calcined at different temperatures of 200-600 °C. The adsorbents were characterized by using XRD, N2 adsorption-desorption isotherm prior to performing CO2 adsorption and desorption studies. The CO2 adsorption data were analyzed using adsorption isotherm models such as Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich. BeO/Fe2O3-300 that calcined at 300 °C showed the most efficient adsorbent with physisorption and chemisorption were measured at 5.85 and 45.88 mg/g respectively. The CO2 adsorption notably best fitted with Freundlich isotherm with R2 = 0.9897 and calculated adsorption capacity closest to experimental data. This implies the CO2 adsorption process was governed by multilayer adsorption on the heterogeneous surface of the adsorbent. The mean free energy of adsorption (E=3.536 kJ/mol) from Dubinin-Radushkevich and heat of adsorption (bT=3.219 kJ/mol) from the Temkin model support that the adsorption process is physical phenomena.

Kinetics studies of CO2 adsorption and desorption on waste ion-exchange resin-based activated carbon

2017 ◽  
Vol 42 (44) ◽  
pp. 27122-27129 ◽  
Author(s):  
Mengqi Wei ◽  
Qingbo Yu ◽  
Huaqing Xie ◽  
Zongliang Zuo ◽  
Limin Hou ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Ion Exchange ◽  
Exchange Resin ◽  
Co2 Adsorption ◽  
Ion Exchange Resin ◽  
Adsorption And Desorption ◽  
Kinetics Studies

Experimental investigation of CO2 adsorption and desorption on multi-type amines loaded HZSM-5 zeolites

2021 ◽  
Vol 406 ◽  
pp. 126882
Author(s):  
Huaigang Cheng ◽  
Huiping Song ◽  
Sam Toan ◽  
Baofeng Wang ◽  
Khaled A.M. Gasem ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Co2 Adsorption ◽  
Adsorption And Desorption

Selective oxidation of aniline into azoxybenzene catalyzed by Nb-peroxo@iron oxides at room temperature

2020 ◽  
Vol 44 (21) ◽  
pp. 8710-8717
Author(s):  
André L. D. Lima ◽  
Humberto V. Fajardo ◽  
André E. Nogueira ◽  
Márcio C. Pereira ◽  
Luiz C. A. Oliveira ◽  
...  
Keyword(s):  
Iron Oxides ◽  
Selective Oxidation ◽  
Room Temperature ◽  
High Selectivity

Nb-peroxo@iron oxides show high selectivity and activity in aniline conversion to azoxybenzene.

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