双碳目标的提出对化工生产中精馏塔的节能提出了新要求。本文以N,N-二甲基乙酰胺-水二元混合体系为例,采用Aspen Plus V 11化工模拟软件对普通精馏技术和双效精馏技术进行模拟与优化,并对两种不同精馏技术的能耗和环境进行评价。模拟计...双碳目标的提出对化工生产中精馏塔的节能提出了新要求。本文以N,N-二甲基乙酰胺-水二元混合体系为例,采用Aspen Plus V 11化工模拟软件对普通精馏技术和双效精馏技术进行模拟与优化,并对两种不同精馏技术的能耗和环境进行评价。模拟计算结果表明,在相同的设计基础和分离要求下,采用双效精馏可明显降低分离能耗近40%且环境友好,具有较强的节能优势和较少的二氧化碳排放。另外,两种不同的双效精馏技术中,逆流双效精馏技术稍优于顺流双效精馏技术。展开更多
After the careful analysis on the factors affecting the emulsification of the dispersion system consisting of oil, water and surfactant, and investigation on the mechanism for the formation of emulsions, a mathematica...After the careful analysis on the factors affecting the emulsification of the dispersion system consisting of oil, water and surfactant, and investigation on the mechanism for the formation of emulsions, a mathematical model to be used in the emulsification was derived finally. By comparing the results of experiments with the results concluded from the mathematical model, it was found that the model was reasonable and useful in the investigation of emulsifications.展开更多
文摘双碳目标的提出对化工生产中精馏塔的节能提出了新要求。本文以N,N-二甲基乙酰胺-水二元混合体系为例,采用Aspen Plus V 11化工模拟软件对普通精馏技术和双效精馏技术进行模拟与优化,并对两种不同精馏技术的能耗和环境进行评价。模拟计算结果表明,在相同的设计基础和分离要求下,采用双效精馏可明显降低分离能耗近40%且环境友好,具有较强的节能优势和较少的二氧化碳排放。另外,两种不同的双效精馏技术中,逆流双效精馏技术稍优于顺流双效精馏技术。
文摘After the careful analysis on the factors affecting the emulsification of the dispersion system consisting of oil, water and surfactant, and investigation on the mechanism for the formation of emulsions, a mathematical model to be used in the emulsification was derived finally. By comparing the results of experiments with the results concluded from the mathematical model, it was found that the model was reasonable and useful in the investigation of emulsifications.
基金The authors are grateful to Professor Jiu-shu Shao at Beijing Normal University for his encourage and help reading the manuscript. We also would like to thank Prof. Jian-min Tao and Guo-bao Li for their kind help. This work was supported by the National Natural Science Foundation of China (No.50564006), the Key program of Natural Science Foundation of Yunnan Provine (No.2005EOOO4Z), the Natural Science Foundation of Yunnan Provine (No.2008E0049M), the Foundation of the Education Department of Yunnan Province (No.07Z40082), and the Foundation of Kunming University of Science and Technology (No.2007-16).