IGC技术表征HFC-134a在改性活性炭上的吸附特性

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英文篇名：Characterization of HFC-134a adsorption on modified activated carbon by IGC technique 作者：王强 ; 商安东 ; 王强 英文作者：WANG Qiang;SHANG An-dong;WANG Qiang;Center for Physical and Chemical Analysis,Xinjiang University;Key Laboratory of Coal Cleaning Conversion and Chemical Engineering Process,Xinjiang Uyghur Autonomous Region,College of Chemistry and Chemical Engineering,Xinjiang University; 关键词：反相气相色谱技术 ; 四氟乙烷 ; 活性炭 ; 吸附热 ; 脱附活化能 英文关键词：inverse gas chromatography;;tetrafluoroethane;;activated carbon;;adsorption heat;;desorption activation energy 中文刊名：SXHG 英文刊名：Applied Chemical Industry 机构：新疆大学理化测试中心;新疆大学化学化工学院煤炭清洁转化与化工过程新疆维吾尔自治区重点实验室; 出版日期：2019-06-10 出版单位：应用化工 年：2019 期：v.48;No.328 基金：国家重大专项(2016ZX05053);; 中石化重大专项(ZDP17004) 语种：中文; 页：SXHG201906006 页数：5 CN：06 ISSN：61-1370/TQ 分类号：32-35+40

摘要

在323. 15～373. 15 K温度区间,采用反相气相色谱(IGC)技术分别测定了四氟乙烷(HFC-134a)在酸改性、碱改性、盐改性前后活性炭上的吸附热及脱附活化能,绘制了脱附曲线。结果表明,改性前,HFC-134a在活性炭上吸附热和脱附活化能分别为-31. 889,-31. 554 k J/mol;酸改性后,活性炭对HFC-134a的吸附热和脱附活化能分别为-49. 788,-51. 600 k J/mol;碱改性后,活性炭对HFC-134a的吸附热和脱附活化能分别为-46. 567,-57. 206 k J/mol;盐改性后,活性炭对HFC-134a的吸附热和脱附活化能分别为-42. 259,-43. 462 k J/mol。
        The adsorption heat and desorption activation energy of the tetrafluoroethane( HFC-134 a) on the activated carbons and the modified ones were measured by inverse gas chromatography( IGC) between323. 15 ～ 373. 15 K. The results showed that the adsorption and desorption activation energy of the activated carbon were-31. 889,-31. 554 k J/mol,respectively; The adsorption heat and desorption activation energy of acid-modified activated carbon on HFC-134 a were-49. 788,-51. 600 k J/mol,respectively; The adsorption heat and desorption activation energy of the alkali-modified activated carbon to HFC-134 a were-46. 567,-57. 206 k J/mol respectively; The adsorption heat and desorption activation energy of the salt modified activated carbon on HFC-134 a were-42. 259,-43. 462 k J/mol,respectively.

引文

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