稳定同位素比例技术对椰壳、杏壳和煤质活性炭种类鉴别的初探

doi:10.3969/j.issn.0253-2417.2018.01.003

林产化学与工业 ›› 2018, Vol. 38 ›› Issue (1): 18-24.doi: 10.3969/j.issn.0253-2417.2018.01.003

稳定同位素比例技术对椰壳、杏壳和煤质活性炭种类鉴别的初探

王鹏飞, 沈娟章, 谭卫红

中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏南京 210042

收稿日期:2017-06-28 出版日期:2018-02-25 发布日期:2018-02-28
通讯作者: 谭卫红,副研究员,硕士生导师,研究领域为稳定同位素研究;E-mail:tanweihong71@163.com。 E-mail:tanweihong71@163.com
作者简介:王鹏飞(1992-),男,浙江嘉兴人,硕士生,主要从事稳定同位素研究工作

Preliminary Study of Identification of Different Kind Activated Carbon from Coconut Shell,Almond Shell and Coal by Stable Isotope Ratio Technique

WANG Pengfei, SHEN Juanzhang, TAN Weihong

Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China

Received:2017-06-28 Online:2018-02-25 Published:2018-02-28

摘要/Abstract

摘要： 初步探索了稳定同位素比例技术对水蒸气活化法生产的椰壳、杏壳和煤质来源的活性炭种类进行鉴别，通过统计产品与服务解决方案（SPSS）软件统计分析了65个活性炭样品后发现：不同原料活性炭的碳同位素比值（δ_¹³C）不同，煤质活性炭的δ_¹³C在-24.3 ‰~-22.1 ‰；杏壳活性炭的δ_¹³C在-25.9 ‰~-24.4 ‰；而椰壳活性炭的δ_¹³C在-25.7 ‰~-24.6 ‰之间。分析3种活性炭的碳/氧、碳/氢同位素分布的散点图发现，以碳同位素值为纵坐标，不同种类的活性炭分散于上、中、下3个不同的区间，煤质活性炭位于Y=-24.325以上的区域，大部分杏壳活性炭分布在Y=-25.031~-24.325的区域，大部分的椰壳活性炭分布在Y=-25.031以下的区域，煤质活性炭与杏壳活性炭、椰壳活性炭具有非常明显的区别。虽然杏壳和椰壳活性炭的δ_¹³C之间有差异，但二者仍有部分的重叠。利用这一结果对3种活性炭进行验证，结果表明对煤质活性炭的判别率为100%，对杏壳活性炭判别率为40%，对椰壳活性炭判别率为90.32%。

关键词: 稳定同位素, 活性炭, 鉴别

Abstract: The study is about the identification of activated carbon,which was made by vapor activation,from coconut shell,almond shell and coal was preliminarily studied by stable isotope ratio technique.Statistical Package for the Social Sciences (SPSS) statistics of 65 kinds of activated carbon found that the δ_¹³C values of coal-based activated carbon,the almond shell activated carbon and the coconut shell activated carbon were -24.3‰--22.1‰,-25.9‰--24.4‰ and -25.7‰--24.6‰,respectively.Further studies analyse of the relationship between δ_¹³C and δ_¹⁸O,δ_¹³C and δ_²H,the δ_¹³C value asvertical axis showed that the δ_13C values of different kinds of activated carbon were located in different interval.The δ_¹³C values of coal-based activated carbon were above Y=-24.325,which could distinguish clearly from almond shell and coconut shell activated carbon.Between Y=-25.031 and Y=-24.325.The most part of δ_¹³C values of the almond shell activated carbon were Y=-25.031--24.325 and those of the coconut shell activated carbon were below Y=-25.031.Although the interval of coconut shell and almond shell activated carbon were different,but part of those were overlap.According to this model,the correct classification of activated carbon from coal,almond shell and coconut shell were 100%,40% and 90.32%.

Key words: stable isotope, activated carbon, identification

中图分类号:

TQ35
TQ424

王鹏飞, 沈娟章, 谭卫红. 稳定同位素比例技术对椰壳、杏壳和煤质活性炭种类鉴别的初探[J]. 林产化学与工业, 2018, 38(1): 18-24.

WANG Pengfei, SHEN Juanzhang, TAN Weihong. Preliminary Study of Identification of Different Kind Activated Carbon from Coconut Shell,Almond Shell and Coal by Stable Isotope Ratio Technique[J]. Chemistry and Industry of Forest Products, 2018, 38(1): 18-24.

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稳定同位素比例技术对椰壳、杏壳和煤质活性炭种类鉴别的初探

Preliminary Study of Identification of Different Kind Activated Carbon from Coconut Shell,Almond Shell and Coal by Stable Isotope Ratio Technique

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