Analysis on adsorption of xenon in micro pore size of porous carbon material

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

Abstract

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

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

CLC Number:

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.

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.

Figures/Tables 17

References 20

1	张利兴. 禁核试核查中放射性惰性气体的监测[J]. 核技术, 2004, 27(10): 770-777.
	ZHANG Lixing. Radioactive noble gases monitoring for the verification of the comprehensive nuclear-test-ban treaty[J]. Nuclear Technology, 2004, 27(10): 770-777.
2	党海军, 刘龙波, 武山. 我国禁核试核素核查技术发展与展望[J]. 核化学与放射化学, 2019, 41(1): 131-143.
	DANG Haijun, LIU Longbo, WU Shan. Progress and prospect of radionuclide verification techniques for CTBT in China[J]. Journal of nuclear and radiochemistry, 2019, 41(1): 131-143.
3	陈占营. 大气中氙的膜分离富集及监测技术[D]. 北京: 清华大学, 2018.
	CHEN Zhanying. Atmospheric xenon separation, concentrating and monitoring techniques in membrane module[D]. Beijing: Tsinghua University, 2018.
4	陈占营, 黑东炜, 王建龙. CTBT大气放射性氙监测技术进展[J]. 现代应用物理, 2018, 9(3): 10-20.
	CHEN Zhanying, Dongwei HEI, WANG Jianlong. Progress of CTBT atmospheric radioactive xenon monitoring technology[J]. Modern Applied Physics, 2018, 9(3): 10-20.
5	RINGBOMA A, LARSON T, AXELSSON A, et al. SAUNA—A system for automatic sampling, processing, and analysis of radioactive xenon[J]. Nuclear Instruments and Methods in Physics Research A, 2003, 508: 542-553.
6	FONTAINE J P, POINTURIER F, BLANCHARD X. Atmospheric xenon radioactive isotope monitoring[J]. Journal of Environmental Radioactivity, 2004, 72: 129-135.
7	YURI V D, NIKOLAY S O. Krypton and xenon radionuclides monitoring in the northwest region of Russia[J]. Pure Applied Geophysics, 2010, 167: 487-498.
8	王红侠, 龚有进, 唐元明, 等. 常温下氙在椰壳活性炭上的吸附性能[J]. 原子能科学技术, 2009, 43(10): 1091-1094.
	WANG Hongxia, GONG Youjin, TANG Yuanming, et al. Adsorption properties of xenon by coconut base activated charcoal in ambient temperature[J]. Atomic Energy Science and Technology, 2009, 43(10): 1091-1094.
9	PATRICK R, OMAR K F, LINDA J B, et al. Computational screening of metal-organic frameworks for xenon/krypton separation[J]. AIChE Journal, 2011, 57(7): 1759-1766.
10	BENJAMIN J S, CHRISTOPHER E W, MICHAEL L, et al. Thermodynamic analysis of Xe/Kr selectivity in over 137000 hypothetical metal-organic frameworks[J]. Chemical Science, 2012, 3: 2217-2223.
11	PAPKES Marie V, STAIGER Chad L, PERRY IV John J, et al.Screening metal-organic frameworks for selective noble gas adsorption in air: effect of pore size and framework topology[J]. Physical Chemistry Chemical Physics, 2013, 15: 9093-9106.
12	YELIZ Gurdal, SEDA Keskin. Predicting noble gas separation performance of metal organic frameworks using theoretical correlations[J]. Journal of Physical Chemistry C, 2013, 117: 5229-5241.
13	CORY M S, ROCIO M, SONDRE K S, et al. What are the best materials to separate a xenon/krypton mixture[J]. Chemistry Material, 2015, 27: 4459-4475.
14	CARLOS A F, LIU J, PRAVEEN K T, et al. Switching Kr/Xe selectivity with temperature in a metal-organic framework[J]. Journal of American Chemistry Society, 2012, 134(22): 9046-9049.
15	CHEN Zhanying, LIU Shujiang, WANG Jianlong, et al. Determination of atmospheric krypton and xenon by gas chromatography-mass spectrometry in direct injection mode[J]. Chinese Journal of Analytical Chemistry, 2016, 44(3): 468-473.
16	陈占营, 王旭辉, 王亚龙, 等. 影响活性炭纤维动态吸附氙性能的因素[J]. 新型碳材料, 2005, 20(4): 369-372.
	CHEN Zhanying, WANG Xuhui, WANG Yalong, et al. The influence on xenon adsorption performance of the carbon fiber material[J]. New Carbon Material, 2005, 20(4): 369-372.
17	陈占营, 王旭辉, 常印忠. 氙在活性炭纤维吸附床上穿透的动力学模型[J]. 无机化学学报, 2008, 24(3): 351-356
	CHEN Zhanying, WANG Xuhui, CHANG Yinzhong. Dynamic model of the xenon adsorption performance in the carbon fiber bed[J]. Inorganic Chemical Research, 2008, 24(3): 351-356.
18	DIETZEL P D C, PANELLA B, HIRSCHER M, et al. Hydrogen adsorption in the nickel based coordination polymer with open metal sites in the cylindrical cavities of the desolvated framework[J]. Chemical Communication, 2006(9): 959-961.
19	SCOTT T M, STEPHANIE L T, JOHN J P, et al. Effects of polarizability on the adsorption of noble gases at low pressures in monohalogenated isoreticular metal-organic frameworks[J]. Journal of Physical Chemistry C, 2012, 116: 19765-19772.
20	LIU J, PRAVEEN K T, DENIS S. Metal-organic frameworks for removal of Xe and Kr from nuclear fuel reprocessing plants[J]. Langmuir, 2012, 28: 11584-11589.

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