摘要
在 323.15~373.15K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,-31.554kJ/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,-51.600kJ/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,-57.206kJ/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,-43.462kJ/mol。
The adsorption heat and desorption activation energy of the tetrafluoroethane (HFC-134a) on the activated carbons and the modified ones were measured by inverse gas chromatography (IGC) between 323.15 ~373.15 K.The results showed that the adsorption and desorption activation energy of the activated carbon were -31.889,-31.554 kJ/mol,respectively;The adsorption heat and desorption activation energy of acid-modified activated carbon on HFC-134a were -49.788,-51.600 kJ/mol,respectively;The adsorption heat and desorption activation energy of the alkali-modified activated carbon to HFC-134a were -46.567 ,-57.206 kJ/mol respectively;The adsorption heat and desorption activation energy of the salt modified activated carbon on HFC-134a were -42.259,-43.462 kJ/mol,respectively.
作者
王强1
商安东
王强2
WANG Qiang1;SHANG An-dong;WANG Qiang2(Center for Physical and Chemical Analysis,Xinjiang University,Urumqi 830046,China;Key Laboratory of Coal Cleaning Conversion and Chemical Engineering Process,Xinjiang Uyghur Autonomous Region,College of Chemistry and Chemical Engineering,Xinjiang University,Urumqi 830046,China)
出处
《应用化工》
CAS
CSCD
北大核心
2019年第6期1270-1273,1278,共5页
Applied Chemical Industry
基金
国家重大专项(2016ZX05053)
中石化重大专项(ZDP17004)
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
inverse gas chromatography
tetrafluoroethane
activated carbon
adsorption heat
desorption activation energy