The membrane-based CO2 separation process has an advantage compared to traditional CO2 separation technologies. The membrane is the key of the membrane separation process. In this paper, preparation, characterization ...The membrane-based CO2 separation process has an advantage compared to traditional CO2 separation technologies. The membrane is the key of the membrane separation process. In this paper, preparation, characterization and laboratory testing of the membrane, which was prepared from sodium alginate, hydrogen bond cross-linked with sodium tartrate and used for CO2/N2 separation, were reported. The resistance to SO2 of the membrane was also investigated. The experimental results demonstrate that the membrane possesses a high resistance to SO2.Finally,based on experimental results, the economic feasibility of the membrane used for CO2/N2 separation was evaluated,indicating the two-stage membrane process can compete with the traditional chemical absorption method.展开更多
A new fixed carder membrane material VSA-SA for CO2 separation was prepared through the chemical modification of PVSA. The selective permeation of CO2 through VSA-SA/PS composite membrane was performed with CO2/CH4 sy...A new fixed carder membrane material VSA-SA for CO2 separation was prepared through the chemical modification of PVSA. The selective permeation of CO2 through VSA-SA/PS composite membrane was performed with CO2/CH4 system. The VSA-SA/PS composite membranes possess better CO2 permselectivity than PVSA/PS composite membrane. Keywords: Fixed carder membrane, CO2 separation, PVSA, VSA-SA.展开更多
基金Supported by the National Natural Science Foundation of China (20836006), the National Basic Research Program (2009CB623405), the Science & Technology Pillar Program of Tianjin (10ZCKFSH01700), the Programme of Introducing Talents of Discipline to Universities (B06006) and the Cheung Kong Scholar Program for Innovative Teams of the Ministry of Education (IRT064.1).
文摘The membrane-based CO2 separation process has an advantage compared to traditional CO2 separation technologies. The membrane is the key of the membrane separation process. In this paper, preparation, characterization and laboratory testing of the membrane, which was prepared from sodium alginate, hydrogen bond cross-linked with sodium tartrate and used for CO2/N2 separation, were reported. The resistance to SO2 of the membrane was also investigated. The experimental results demonstrate that the membrane possesses a high resistance to SO2.Finally,based on experimental results, the economic feasibility of the membrane used for CO2/N2 separation was evaluated,indicating the two-stage membrane process can compete with the traditional chemical absorption method.
基金the National Basic Research Program (No.2003CB615703) the National Natural Science Foundation of China (No.20476075).
文摘A new fixed carder membrane material VSA-SA for CO2 separation was prepared through the chemical modification of PVSA. The selective permeation of CO2 through VSA-SA/PS composite membrane was performed with CO2/CH4 system. The VSA-SA/PS composite membranes possess better CO2 permselectivity than PVSA/PS composite membrane. Keywords: Fixed carder membrane, CO2 separation, PVSA, VSA-SA.