当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2014年
7期
1149-1152,1157
,共5页
赵向苗%朱建华%田俊%王琪%许玮玮%杨梅%尹星
趙嚮苗%硃建華%田俊%王琪%許瑋瑋%楊梅%尹星
조향묘%주건화%전준%왕기%허위위%양매%윤성
汽油%氯化物%竞争吸附%吸附平衡
汽油%氯化物%競爭吸附%吸附平衡
기유%록화물%경쟁흡부%흡부평형
Gasoline%Chloride%Competitive adsorption%Adsorptive equilibrium
在模拟汽油体系中研究了二氯乙烷在 N 型吸附剂上的竞争吸附及吸附平衡。研究结果表明,汽油中存在的烯烃和芳烃与二氯乙烷之间存在着强烈的竞争吸附,严重影响了 N 型吸附剂的脱氯性能;二氯乙烷在N 型吸附剂上的吸附等温线适合利用 Langmuir 方程进行拟合,而通过对吸附热力学函数值的估算,表明二氯乙烷在 N 型吸附剂上的吸附过程为可自发进行的放热过程。
在模擬汽油體繫中研究瞭二氯乙烷在 N 型吸附劑上的競爭吸附及吸附平衡。研究結果錶明,汽油中存在的烯烴和芳烴與二氯乙烷之間存在著彊烈的競爭吸附,嚴重影響瞭 N 型吸附劑的脫氯性能;二氯乙烷在N 型吸附劑上的吸附等溫線適閤利用 Langmuir 方程進行擬閤,而通過對吸附熱力學函數值的估算,錶明二氯乙烷在 N 型吸附劑上的吸附過程為可自髮進行的放熱過程。
재모의기유체계중연구료이록을완재 N 형흡부제상적경쟁흡부급흡부평형。연구결과표명,기유중존재적희경화방경여이록을완지간존재착강렬적경쟁흡부,엄중영향료 N 형흡부제적탈록성능;이록을완재N 형흡부제상적흡부등온선괄합이용 Langmuir 방정진행의합,이통과대흡부열역학함수치적고산,표명이록을완재 N 형흡부제상적흡부과정위가자발진행적방열과정。
The investigation was carried out for the competitive adsorption and adsorption equilibrium of dichloroethane on N type of adsorbent in the model gasoline system. The experimental results indicated that there was strong competitive adsorption between the olefins, aromatics and dichloroethane in the model gasoline, which could seriously affect the dechlorination performance of N type of adsorbent. Besides, the adsorption isotherm of dichloroethane on N type of adsorbent could be preferably fitted by Langmuir adsorption isotherm equation. Finally, the calculation results of the thermodynamic parameters demonstrated that the adsorption process of dichloroethane on N type of adsorbent was an exothermic one, and could proceed spontaneously.