| 浸渍金属盐二次活化制备中孔沥青基球形活性炭的研究 |
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| 引用本文： | 刘小军,刘朝军,曹远翔,王琴,梁晓怿,乔文明,凌立成.浸渍金属盐二次活化制备中孔沥青基球形活性炭的研究[J].离子交换与吸附,2008,24(4). |
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| 作者姓名： | 刘小军 刘朝军 曹远翔 王琴 梁晓怿 乔文明 凌立成 |
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| 作者单位： | 1. 化学工程联合国家重点实验室,华东理工大学,上海,200237
2. 新疆天富热电股份有限公司,石河子,832000 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，上海市科委登山行动计划基地配套项目，教育部跨世纪优秀人才培养计划 |
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| 摘 要： | 以煤焦油沥青为原料,水蒸气活化法制备具有一定孔隙结构的预活化沥青基球形活性炭:通过在预活化球形活性炭中浸渍Fe(NO3)3、Co(NO3)2、Ni(NO3)2水蒸气二次活化,制备得到具有不同中孔孔径分布和较高强度的球形活性炭;研究了金属Fe、CO、Ni在二次活化过程中对预活化球形活性炭的孔结构参数和VB12吸附性能的影响,实验结果表明,预活化球形活性炭通过浸渍硝酸盐二次活化能够有效提高中孔孔容和中孔含量,其中浸渍CO(NO3)2二次活化对中孔孔容的增加最为明显,其中孔孔容达0.50cm3/g,占总孔孔容的65%.随着浸溃Co(NO3)2二次活化时间的延长,预活化球形活性炭中孔孔容增加,孔径分布变宽.
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| 关 键 词： | 活性炭 催化活化 中孔 |
STUDY OF PREPARATION OF MESOPOROUS PITCH-BASED SPHERICAL ACTIVATED CARBON THROUGH REACTIVATION BY IMPREGNATED NITRATES |
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| LIU Xiaojun,LIU Chaojun,CAO Yuanxiang,WANG Qin,LIANG Xiaoyi,QIAO Wenming,LING Licheng.STUDY OF PREPARATION OF MESOPOROUS PITCH-BASED SPHERICAL ACTIVATED CARBON THROUGH REACTIVATION BY IMPREGNATED NITRATES[J].Ion Exchange and Adsorption,2008,24(4). |
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| Authors: | LIU Xiaojun LIU Chaojun CAO Yuanxiang WANG Qin LIANG Xiaoyi QIAO Wenming LING Licheng |
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| Abstract: | Pitch-based spherical activated carbon (PSAC) pre-activated was used to prepare mesoporous activated carbon through reactivation by impregnated nitrates such as Fe(NO3)3, Co(NO3)2 and Ni(NO3)2. The effect of impregnated nitrates in PSAC on the pore size distributions (PSDs) was investigated. The results indicates that reactivation of pre-activated PSAC through impregnated nitrates is an effective method to increase mesopore volume and mesoporosity. Co(NO3)2 is found be most effective to enhance the mesopore volume, up to 0.50cm3/g, mesopore ratio: 65%. With the increasing of reactivation time, mesoporosity of PSAC through reactivation by impregnated Co(NO3)2 increases and PSDs are broadened. |
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| Keywords: | Activated carbon Catalytic activation Mesopore |
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