KOH活化制备石油焦基微孔活性炭及表征
Preparation and characterization of petroleum coke-based microporous activated carbon by KOH activation
查看参考文献13篇
文摘
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以新疆克拉玛依石油焦为原料,KOH为活化剂,在N_2保护下,采用化学活化法制备高比表面积活性炭。系统考察了碱焦比、活化温度、活化时间以及N_2流速对所制备活性炭的碘吸附值及产率的影响。结果表明:当碱焦比为4∶1、活化温度为800℃、活化时间为0.5h及N_2流速为50mL/min时,制备出的活性炭BET比表面积高达2806.69m~2/g, 碘吸附值为2941mg/g,活化产率为62.1%。采用N_2吸附-脱附及X射线衍射等实验手段对活性炭进行了表征。 |
其他语种文摘
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Activated carbon(AC)with high specific surface area was prepared by using KOH as an activation agent and petroleum coke as raw material under the protection of nitrogen.The effect of the ratio of KOH to coke,activation temperature, activation time and flow rate of N_2on the iodine number and yield of AC were investigated.The result showed that as the ratio of KOH to coke 4∶1,activation temperature 800℃,activation time 0.5hand flow rate of N_250mL/min,AC with high surface area of 2806.69m~2/g,iodine number of 2941mg/g and activation yield of 62.1% was obtained.The asprepared AC was characterized by nitrogen adsorption-desorption and X-ray diffraction(XRD)techniques. |
来源
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化工新型材料
,2015,43(9):166-168 【核心库】
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关键词
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石油焦
;
活性炭
;
KOH
;
高比表面积
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地址
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1.
河北工业大学化工学院, 天津, 300130
2.
中国科学院新疆理化技术研究所环境科学与技术研究室, 乌鲁木齐, 830011
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1006-3536 |
学科
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化学工业 |
基金
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中国科学院西部之光人才培养计划
;
新疆维吾尔自治区青年博士科技人才培养
;
国家自然科学基金
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文献收藏号
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CSCD:5538086
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