Kinetic Model for CO2 Capture by Lithium Silicates

2020 ◽  
Vol 124 (37) ◽  
pp. 20506-20515
Author(s):  
Anthony Vallace ◽  
Simon Brooks ◽  
Charles Coe ◽  
Michael A. Smith
Keyword(s):  
Kinetic Model ◽  
Co2 Capture ◽  
Lithium Silicates

CO2 capture properties of lithium silicates with different ratios of Li2O/SiO2: an ab initio thermodynamic and experimental approach

2013 ◽  
Vol 15 (32) ◽  
pp. 13538 ◽  
Author(s):  
Yuhua Duan ◽  
Heriberto Pfeiffer ◽  
Bingyun Li ◽  
Issis C. Romero-Ibarra ◽  
Dan C. Sorescu ◽  
...  
Keyword(s):  
Ab Initio ◽  
Co2 Capture ◽  
Experimental Approach ◽  
Lithium Silicates

scholarly journals Study on CO2 Capture Characteristics and Kinetics of Modified Potassium-Based Adsorbents

Materials ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 877 ◽  
Author(s):  
Baihe Guo ◽  
Yanlin Wang ◽  
Xin Shen ◽  
Xiaolei Qiao ◽  
Li Jia ◽  
...  
Keyword(s):  
Water Vapor ◽  
Kinetic Model ◽  
Co2 Capture ◽  
Silica Aerogel ◽  
Sol Gel ◽  
Co2 Concentration ◽  
Vapor Concentration ◽  
Water Vapor Concentration ◽  
Gel Method ◽  
Sol Gel Method

In this paper, a silica aerogel support was prepared by two-step sol–gel method, and the active component K2CO3 was supported on the support by wet loading to obtain a modified potassium-based CO2 adsorbent. As the influences of reaction conditions on the CO2 capture characteristics of modified potassium-based adsorbents, the reaction temperature (50 °C, 60 °C, 70 °C, 80 °C), water vapor concentration (10%, 15%, 20%), CO2 concentration (5%, 10%, 12.5%, 15%), and total gas flow rate (400 mL/min, 500 mL/min, 600 mL/min) were studied in a self-designed fixed-bed reactor. At the same time, the low-temperature nitrogen adsorption experiment, scanning electron microscope, and X-ray diffractometer were used to study the microscopic characteristics of modified potassium-based adsorbents before and after the reaction. The results show that the silica aerogel prepared by the two-step sol–gel method has an excellent microstructure, and its specific surface area and specific pore volume are as high as 838.9 m2/g and 0.85 cm3/g, respectively. The microstructure of K2CO3 loaded on the support is improved, which promotes the CO2 adsorption performance of potassium-based adsorbents. The adsorption of CO2 by potassium-based adsorbents can be better described by the Avrami fractional kinetic model and the modified Avrami fractional kinetic model, and it is a complex multi-path adsorption process, which is related to the adsorption site and activity. The optimal adsorption temperature, water vapor concentration, CO2 concentration, and total gas volume were 60 °C, 15%, 12.5%, and 500 mL/min, respectively.

Synthesis and evaluation in the CO2 capture process of potassium-modified lithium silicates produced from steel metallurgical slags

2021 ◽  
Vol 141 ◽  
pp. 111353
Author(s):  
Walther-Darío Bejarano-Peña ◽  
Brenda Alcántar-Vázquez ◽  
Rosa-María Ramírez-Zamora
Keyword(s):  
Co2 Capture ◽  
Capture Process ◽  
Lithium Silicates ◽  
Metallurgical Slags

scholarly journals Environmental Benign Synthesis of Lithium Silicates and Mg-Al Layered Double Hydroxide from Vermiculite Mineral for CO2 Capture

Catalysts ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 105 ◽  
Author(s):  
Yu Zhang ◽  
Tuantuan Zhou ◽  
Benoit Louis ◽  
Feng Yu ◽  
Jianming Dan ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Co2 Capture ◽  
Benign Synthesis ◽  
Lithium Silicates ◽  
Double Hydroxide

Fabrication of lithium silicates from zeolite for CO2 capture at high temperatures

2019 ◽  
Vol 33 ◽  
pp. 81-89 ◽  
Author(s):  
Yu Zhang ◽  
Yanshan Gao ◽  
Benoit Louis ◽  
Qiang Wang ◽  
Weiran Lin
Keyword(s):  
High Temperatures ◽  
Co2 Capture ◽  
Lithium Silicates

A new kinetic model for CO2 capture on sodium zirconate (Na2ZrO3): An analysis under different flow rates

2022 ◽  
Vol 56 ◽  
pp. 101862
Author(s):  
J. Arturo Mendoza-Nieto ◽  
Héctor Martínez-Hernández ◽  
Heriberto Pfeiffer ◽  
J. Francisco Gómez-García
Keyword(s):  
Kinetic Model ◽  
Co2 Capture ◽  
Flow Rates
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