化学工程
化學工程
화학공정
CHEMICAL ENGINEERING
2014年
7期
48-51
,共4页
李柏春%杨瑞岭%杨振生%林栋君
李柏春%楊瑞嶺%楊振生%林棟君
리백춘%양서령%양진생%림동군
丁酮连氮%丁酮%汽液平衡
丁酮連氮%丁酮%汽液平衡
정동련담%정동%기액평형
methyl ethyl ketazine%butanone%VLE
为了解决水合肼生产中中间产物丁酮连氮与丁酮、水合肼等的分离问题,利用双循环汽液平衡釜,在常压(100 kPa)下测定了丁酮-丁酮连氮体系的汽液平衡数据,并用Herrington规则对测量数据进行热力学一致性检验,实验结果符合热力学一致性。利用化工模拟软件应用热力学方程WILSON,NRTL和UNIQUAC方程对实验数据进行关联和预测。得到了相关的模型参数,结果表明UNIQUAC模型对实验数据的吻合性最好,汽相组成的计算值与实验值最大绝对偏差不超过0.03,平均值不超过0.004。为工业分离工艺的设计提供了参考。
為瞭解決水閤肼生產中中間產物丁酮連氮與丁酮、水閤肼等的分離問題,利用雙循環汽液平衡釜,在常壓(100 kPa)下測定瞭丁酮-丁酮連氮體繫的汽液平衡數據,併用Herrington規則對測量數據進行熱力學一緻性檢驗,實驗結果符閤熱力學一緻性。利用化工模擬軟件應用熱力學方程WILSON,NRTL和UNIQUAC方程對實驗數據進行關聯和預測。得到瞭相關的模型參數,結果錶明UNIQUAC模型對實驗數據的吻閤性最好,汽相組成的計算值與實驗值最大絕對偏差不超過0.03,平均值不超過0.004。為工業分離工藝的設計提供瞭參攷。
위료해결수합정생산중중간산물정동련담여정동、수합정등적분리문제,이용쌍순배기액평형부,재상압(100 kPa)하측정료정동-정동련담체계적기액평형수거,병용Herrington규칙대측량수거진행열역학일치성검험,실험결과부합열역학일치성。이용화공모의연건응용열역학방정WILSON,NRTL화UNIQUAC방정대실험수거진행관련화예측。득도료상관적모형삼수,결과표명UNIQUAC모형대실험수거적문합성최호,기상조성적계산치여실험치최대절대편차불초과0.03,평균치불초과0.004。위공업분리공예적설계제공료삼고。
The vapor-liquid equilibrium (VLE )data of butanone and methyl ethyl ketazine system were measured by using a double-circulating vapor-liquid equilibrium still at 100 kPa.The thermodynamic consistency of the VLE data was examined by Herrington method and the result was satisfactory.The experimental data were correlated by the Wilson, nonrandom two-liquid (NRTL ), and universal quasichemical activity coefficient (UNIQUAC ) parameter models.All of the models were satisfactorily correlated with the VLE data.The result shows that the UNIQUAC model is the most suitable one to represent the experimental data satisfactorily.The maximum deviation of vapor-phase calculation value and experimental value is less than 0.03,with the average absolute value less than 0.004.It provides a reference for industrial separation processes design of butanone and methyl ethyl ketazine in hydrazine hydrate production process.