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Clean production of porous MgO by thermal decomposition of Mg(OH)(2) using fluidized bed: Optimization for CO2 adsorption
Sun, Yong1,2; Zhang, Jing Ping2; Wen, Chao3; Li, Zuohu2
2016-06-01
Source PublicationJOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
ISSN1876-1070
Volume63Issue:JUNEPages:170-179
AbstractFluidized bed efficiently intensifies thermal decomposition of Mg(OH)(2) for fast preparation of porous MgO. The shrinking core model is found to well describe the decomposition process. The initial stage of decomposition is controlled by chemical reaction with activation energy being 104 kJ/mol and the subsequent stage is then controlled by diffusion with activation energy being 15 kJ/mol. The response surface methodology (RSM) and the central composite design (CCD) are employed for determining optimal conditions to prepare adsorbent with maximum CO2 removal capacity. The operational parameters such as dehydration temperature (degrees C), duration (min) and FR-flow rate (Nm(3)/h) are chosen as independent variables in CCD. The statistical analysis indicates that the effects of dehydration temperature and combined effect of temperature and duration are all significant to the CO2 removal capacity. The optimal condition for achieving the maximum CO2 adsorption capacity is obtained as the following: temperature (480 degrees C), duration (42 min), FR (13.8 Nm(3)/h) with CO2 removal capacity reaching 33 mg/g. The employment of fluidized bed in process intensification significantly reduces the thermal treatment duration down to 0.7 h. (c) 2016 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
KeywordMgo Dehydration Fluidize Bed Co2 Ccd
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.jtice.2016.02.030
Indexed BySCI
Language英语
WOS KeywordRESPONSE-SURFACE METHODOLOGY ; CARBON-DIOXIDE ADSORPTION ; MODIFIED MESOPOROUS SILICAS ; ACTIVATED CARBON ; CALCINATION TEMPERATURE ; MAGNESIUM-HYDROXIDE ; HYDROTHERMAL METHOD ; BLACK LIQUOR ; FLY-ASH ; PERFORMANCE
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationAnpeng high-tech energy and resource company, Shenhua Beijing institute
WOS IDWOS:000378370400022
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21163
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Joondalup, WA 6027, Australia
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Cleaner Prod Technol, Beijing 100190, Peoples R China
3.NW Univ Xian, Sch Chem Engn, Xian 710069, Peoples R China
Recommended Citation
GB/T 7714
Sun, Yong,Zhang, Jing Ping,Wen, Chao,et al. Clean production of porous MgO by thermal decomposition of Mg(OH)(2) using fluidized bed: Optimization for CO2 adsorption[J]. JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS,2016,63(JUNE):170-179.
APA Sun, Yong,Zhang, Jing Ping,Wen, Chao,&Li, Zuohu.(2016).Clean production of porous MgO by thermal decomposition of Mg(OH)(2) using fluidized bed: Optimization for CO2 adsorption.JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS,63(JUNE),170-179.
MLA Sun, Yong,et al."Clean production of porous MgO by thermal decomposition of Mg(OH)(2) using fluidized bed: Optimization for CO2 adsorption".JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS 63.JUNE(2016):170-179.
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