کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6659689 | 1426190 | 2018 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Density studies of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-glycerol and CO2-DBU-glycerol solutions at temperatures between 288.15â¯K and 328.15â¯K
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Density studies of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-glycerol and CO2-DBU-glycerol solutions at temperatures between 288.15â¯K and 328.15â¯K Density studies of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-glycerol and CO2-DBU-glycerol solutions at temperatures between 288.15â¯K and 328.15â¯K](/preview/png/6659689.png)
چکیده انگلیسی
The binary system of glycerol and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) possesses promising potential for CO2 absorption, and critical physical properties, especially density, analysis are important for its application. In this work, density of DBU-glycerol system before and after CO2 absorption at temperatures between 288.15â¯K and 328.15â¯K was studied by the pycnometer method. In DBU-glycerol system, the density decreases with increases in both temperature and DBU concentration. Excess molar volumes (VE) of DBU-glycerol system are negative in the entire composition range and are well correlated with Redlich-Kister equation. Four different models are successfully adopted for correlating and predicting the densities of DBU-glycerol binary solutions. In CO2-DBU-glycerol system, densities are 0-6% higher than that in the DBU-glycerol system when the mass content of CO2 (ÏCO2) based on the total mass of DBU and glycerol is less than 8%. Two different models were set up to correlate the densities with the mole fraction of DBU, temperatures, and CO2-loadings. The Jouyban-Acree method and the proposed modified proportionality method are preferred respectively for calculating the densities of the CO2-unloaded and CO2-loaded DBU-glycerol mixtures due to their simplicity and precision. The density data are useful in the engineering design for CO2 capture using DBU-glycerol solvent.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 123, August 2018, Pages 8-16
Journal: The Journal of Chemical Thermodynamics - Volume 123, August 2018, Pages 8-16
نویسندگان
Si Lin, Houfang Lu, Yingying Liu, Changjun Liu, Bin Liang, Kejing Wu,