| 水热一步法合成粉煤灰基吸附剂 |
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| 引用本文： | 徐岩.水热一步法合成粉煤灰基吸附剂[J].煤炭转化,2005,28(2):84-87. |
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| 作者姓名： | 徐岩 |
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| 作者单位： | 黑龙江科技学院资源与环境工程学院,150027,哈尔滨 |
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| 基金项目： | 哈尔滨科学技术规划项目 (0 4-0 7) |
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| 摘 要： | 以电厂的废弃物粉煤灰为原料,研究了368K温度范围内,粉煤灰在水热体系中自转变合成了纯度和结晶度均较高的粉煤灰基吸附剂的过程,并对其吸附性能作了初步研究.用氮吸附静态容量法,测得该粉煤灰基吸附剂的氮吸附等温线、比表面和孔分布曲线.通过粉煤灰基吸附剂对苯酚的吸附实验,给出粉煤灰基吸附剂对它的吸附等温线,并指出合理的吸附温度,大的比表面和适当的膜化工艺对提高粉煤灰基吸附剂的吸附量都是有效的.
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| 关 键 词： | 粉煤灰基吸附剂 吸附 吸附等温线 粉煤灰 水热合成 |
| 修稿时间： | 2004年10月9日 |
STUDY ON FALY ASH-TYPE ADSORBENT BY SELF-TRANSFORMATION ON FALY ASH IN A HYDROTHERMAL PHASE |
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| Xu Yan.STUDY ON FALY ASH-TYPE ADSORBENT BY SELF-TRANSFORMATION ON FALY ASH IN A HYDROTHERMAL PHASE[J].Coal Conversion,2005,28(2):84-87. |
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| Authors: | Xu Yan |
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| Abstract: | Fly ash-type adsorbent with high crystallinity and purity were synthesized by Na_2CO_3 or NaOH fusion of quartz-containing elutrillithe followed by hydrothermal treatment.Within the temperature range of 368 K,its adsorption feature was investigated.The adsorption properties of the fly ash-based adsorbent were characterized by adsorption isotherm,specific surface and pore distribution with the help of N_2 adsorption.The adsorption isotherm of phenol were tested,based on which effective means to increase the adsorption of fly ash-based adsorbent is proposed. |
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| Keywords: | fly ash-based adsorbent adsorption adsorption isotherm fly ash hydrother-mal treatment |
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