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Preparation and characterization of activated carbons from spirit lees by physical activation
Alternative TitleNew Carbon Mater.
Li Qiang1; Wang Yin1; Yu Jian1; Yi Bin3; Yang Jun3; Xu Guang-wen1
2012-12-01
Source PublicationNEW CARBON MATERIALS
ISSN1007-8827
Volume27Issue:6Pages:440-447
AbstractSpirit lees was carbonized and then activated by steam. and CO, to prepare activated carbons. The effect of carbonization temperature, type and amount of activator, activation temperature and time on the pore structure, and the adsorption of methylene blue and iodine were investigated. The gas products during activation were analyzed online to reveal the activation mechanism Results showed that steam activation was rather more active than CO2. Regardless of the activation agent, a low carbonization temperature of 450 degrees C and a medium activation temperature of 800 degrees C favored the iodine adsorption. For the methylene blue adsorption, the same low carbonization temperature of 450 degrees C, however, medium/high activation temperatures (850 to 900 degrees C) are favorable. The best activated carbon was prepared with a steam activator using a carbonization temperature of 450 degrees C and an activation temperature of 800 C, which had a surface area and pore volume of 371.6 m(2)/g and 0.34 cm(3)/g, and iodine and methylene blue adsorption capacities of 580 mg/g and 90 mg/g respectively. O- and H-containing functional groups in the carbonized spirit lees reacted with the activation regent (steam or CO,) to form the initial pores, then the accessible active sites reacted with the activation regent to generate secondary pores.; Spirit lees was carbonized and then activated by steam. and CO, to prepare activated carbons. The effect of carbonization temperature, type and amount of activator, activation temperature and time on the pore structure, and the adsorption of methylene blue and iodine were investigated. The gas products during activation were analyzed online to reveal the activation mechanism Results showed that steam activation was rather more active than CO2. Regardless of the activation agent, a low carbonization temperature of 450 degrees C and a medium activation temperature of 800 degrees C favored the iodine adsorption. For the methylene blue adsorption, the same low carbonization temperature of 450 degrees C, however, medium/high activation temperatures (850 to 900 degrees C) are favorable. The best activated carbon was prepared with a steam activator using a carbonization temperature of 450 degrees C and an activation temperature of 800 C, which had a surface area and pore volume of 371.6 m(2)/g and 0.34 cm(3)/g, and iodine and methylene blue adsorption capacities of 580 mg/g and 90 mg/g respectively. O- and H-containing functional groups in the carbonized spirit lees reacted with the activation regent (steam or CO,) to form the initial pores, then the accessible active sites reacted with the activation regent to generate secondary pores.
KeywordSpirit Lees Porous Carbon Physical Activation Industrial Biomass Process Residue
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
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Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000314009500007
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6441
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.CNOOC New Energy Investment Co Ltd, Beijing 100016, Peoples R China
3.Luzhou Laojiao Grp, Luzhou 646000, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Li Qiang,Wang Yin,Yu Jian,et al. Preparation and characterization of activated carbons from spirit lees by physical activation[J]. NEW CARBON MATERIALS,2012,27(6):440-447.
APA Li Qiang,Wang Yin,Yu Jian,Yi Bin,Yang Jun,&Xu Guang-wen.(2012).Preparation and characterization of activated carbons from spirit lees by physical activation.NEW CARBON MATERIALS,27(6),440-447.
MLA Li Qiang,et al."Preparation and characterization of activated carbons from spirit lees by physical activation".NEW CARBON MATERIALS 27.6(2012):440-447.
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