氙常温吸附性能与多孔碳材料孔径分布关联分析

doi:10.16085/j.issn.1000-6613.2020-0629

摘要/Abstract

摘要：

以多孔碳材料为研究对象，测量分析了材料孔径分布和氙吸附性能，讨论了氙吸附性能与材料孔径分布之间的关联关系。结果表明，多孔材料的微孔孔容与其比表面积呈正相关；大气氙常温吸附集中于多孔材料的微孔孔道内，氙吸附能力与材料中孔无显著关联；氙常温吸附能力与碳材料5.0～7.0?的微孔孔体积相关性较显著，大于10.0?微孔孔容关联较小。

关键词: 多孔碳材料, 孔径分布, 吸附性能, 大气氙吸附

Abstract:

In this paper, some different materials with micro-pore are analyzed and their micro-pore size distributions are also described precisely firstly. Secondly, the adsorption performance of ambient atmospheric xenon are tested in the same size stainless column within different porous materials. And then, the comparisons of the results between micro-pore size distributions and adsorption performance of ambient atmospheric xenon are discussed and studied in detail. As a consequence, micro-pore volume of the material is the main parameter for specific surface. In room temperature, the xenon adsorption also accumulate in micro-pore but in mesopore, it demonstrates that the positive correlation between the adsorption performance of ambient atmospheric xenon and the micro-pore volume is obtained obviously. Furthermore, the adsorption of ambient atmospheric xenon in room temperature usually occurs in the micro-pore size range with 5.0—7.0?, but not to adsorb in the micro-pore bigger than 10.0?.

Key words: porous carbon material, pore size distribution, adsorption performance, atmospheric xenon adsorption

中图分类号:

刘蜀疆, 陈占营, 赵永刚, 常印忠. 氙常温吸附性能与多孔碳材料孔径分布关联分析[J]. 化工进展, 2020, 39(S2): 243-250.

Shujiang LIU, Zhanying CHEN, Yonggang ZHAO, Yinzhong CHANG. Analysis on adsorption of xenon in micro pore size of porous carbon material[J]. Chemical Industry and Engineering Progress, 2020, 39(S2): 243-250.

图/表 17

参考文献 20

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序号	材料编号	种类	颗粒大小 /mm	装填密度 /g·mL^-1
1	CF1450	椰壳类活性炭	0.074～3	0.36
2	TianJin	椰壳类碳分子筛	0.5	0.43
3	ShanLi-1	酚醛树脂类碳分子筛	2-3	0.60
4	ShanLi-2	酚醛树脂类碳分子筛	2-3	0.59
5	ShanLi-3	酚醛树脂类碳分子筛	2-3	0.60

序号	材料编号	种类	颗粒大小 /mm	装填密度 /g·mL^-1
1	CF1450	椰壳类活性炭	0.074～3	0.36
2	TianJin	椰壳类碳分子筛	0.5	0.43
3	ShanLi-1	酚醛树脂类碳分子筛	2-3	0.60
4	ShanLi-2	酚醛树脂类碳分子筛	2-3	0.59
5	ShanLi-3	酚醛树脂类碳分子筛	2-3	0.60

p/Pa	曲线最大值A₁	曲线最小值A₂	半穿透时间B/min	k/min^-1	V_Xe/mL
1.0×10⁵	0.01614	0.9909	58	2.363	23200
1.8×10⁵	0.01948	0.9993	91	2.421	36400
2.8×10⁵	0.02052	1.006	120	2.887	48000
3.2×10⁵	0.01439	0.9926	130	4.108	52000
3.8×10⁵	0.01631	1.0076	142	4.102	56800

p/Pa	曲线最大值A₁	曲线最小值A₂	半穿透时间B/min	k/min^-1	V_Xe/mL
1.0×10⁵	0.01614	0.9909	58	2.363	23200
1.8×10⁵	0.01948	0.9993	91	2.421	36400
2.8×10⁵	0.02052	1.006	120	2.887	48000
3.2×10⁵	0.01439	0.9926	130	4.108	52000
3.8×10⁵	0.01631	1.0076	142	4.102	56800

参数	参数值
参数	300mL·min^-1	400mL·min^-1	470mL·min^-1
曲线最大值A₁	0.02845	0.01626	0.02385
曲线最小值A₂	1.001	0.9986	1.015
半穿透时间B/min	83	57.9	50.6
k/min^-1	0.3901	2.363	1.876
V_Xe/mL	24900	23160	23782