Enhancement of CO2 Desorption from a Novel Absorbent (Dimethyl Carbonate) by Using a PDMS/TiO2 Pervaporation Membrane

• DOI: 10.1021/acssuschemeng.9b01216
• Publication Date: 2019-06-17T16:44:31Z
• Authors: Ebrahim Ataeivarjovi; Zhigang Tang; Jian Chen; Zhijun Zhao; Guo Dong
• Keywords: Polydimethylsiloxane; Pervaporation; Dimethyl carbonate

Currently, there is strong interest in carbon capture and absorption as a means of reducing dioxide emissions combating climate change. Unfortunately, the current traditional methods to achieve such goals are not economical, because they require huge absorption–desorption plant with high investment operating costs recycle rates chemical absorbers. In this paper, we propose novel CO2 method combining dimethyl carbonate physical solvent polydimethylsiloxane (PDMS)/TiO2 nanocomposite desorption membrane. The effects TiO2 concentration, feed temperature, permeate pressure on pervaporation process for were studied. Results showed that addition nanoparticles (up 5 wt %) resulted 3.61 kg/m2·h flux 44.68 selectivity presence PDMS membrane only increased performance membrane's but also reduced (about 72%) energy consumption. To corroborate our experimental findings, simple simulation was conducted by Gaussian 09. modeling results demonstrated incorporation led favorable compared composite one. These indicate promising effectively economically industrial purposes.