| 添加剂作用下煤基中孔活性炭的制备 |
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| 引用本文： | 冀有俊,张双全,罗朋,任改玲,王壬峰.添加剂作用下煤基中孔活性炭的制备[J].煤炭转化,2011,34(3). |
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| 作者姓名： | 冀有俊 张双全 罗朋 任改玲 王壬峰 |
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| 作者单位： | 中国矿业大学煤炭加工与高效洁净利用教育部重点实验室,221116江苏徐州 |
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| 基金项目： | 国际科技合作计划项目(2010DFA24580) |
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| 摘 要： | 以贫煤为原料,硝酸盐为添加剂,制得中孔发达的活性炭.利用N2吸附脱附曲线对样品孔隙结构进行了表征,并考察了其吸附性能(碘值和亚甲蓝值).结果表明,未加添加剂时,可以得到中孔孔容0.287 4 mL/g,中孔率达72.43%的活性炭;加入添加剂后,微孔孔容和中孔孔容提高了0.05 mL/g左右.结果还表明,实验用硝酸盐有利于微孔的形成,能促进微孔向中孔的发育,提高总孔容;利用不同浓度的添加剂对活性炭的孔隙可进行定向调变.
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| 关 键 词： | 贫煤 添加剂 中孔活性炭 孔径分布 |
PREPARATION OF COAL-BASED MESOPOROUS ACTIVATED CARBONS BY ADDITIVE |
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| Ji Youjun,Zhang Shuangquan,Luo Peng,Ren Gailing,Wang Renfeng.PREPARATION OF COAL-BASED MESOPOROUS ACTIVATED CARBONS BY ADDITIVE[J].Coal Conversion,2011,34(3). |
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| Authors: | Ji Youjun Zhang Shuangquan Luo Peng Ren Gailing Wang Renfeng |
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| Affiliation: | Ji Youjun Zhang Shuangquan Luo Peng Ren Gailing and Wang Renfeng(Key Laboratory of Coal Processing and Efficient Utilization,China University of Mining and Technology,221116 Xuzhou,Jiangsu) |
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| Abstract: | Mesoporous activated carbons were prepared from a lean coal in the presence of additive.Then the iodine value,methylene blue value and the nitrogen adsorption/desorption isotherms of activated carbon were characterized.The results show that the obtained activated carbons have great mesoporous volume without impregnating additive.The mesoporous volume can reach 0.287 4 mL/g and its ratio is up to 72.43%;both of microporous and mesoporous volume increase about 0.05 mL/g with additive,suggesting that the addit... |
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| Keywords: | lean coal additive mesoporous activated carbon pore size distribution |
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