(707b) CO2 Capture and Conversion Based On ILs
AIChE Annual Meeting
Thursday, November 7, 2013 - 12:55pm to 1:20pm
CO2 Capture and Conversion Based on ILs
Suojiang Zhang*, Jian Sun
Institute of Process Engineering, Chinese Academy of Sciences,100190, Beijing, PR China
*Corresponding author: email@example.com
An ionic liquid based CO2 capture technology has been developed. To enhance the absorption efficiency, a series of ILs were synthesized and screened including amino functionalized IL. The performance of IL mixture for CO2 capture was also carried out.The system integration result indicated that the new process resulted in about 27% reducing of energy consumption comparing to the traditional amine process.
As a way out for CO2 capture, the synthesis of cyclic carbonates via cycloaddition of CO2 to epoxides is studied, where the synthesized ILs are found to be very efficient catalysts for the cycloaddition reaction. Our previous work indicated that the hydroxyl group in solvent, IL or carrier all could play a promotion role on the reaction.  Based on the fundamental understanding, hydroxyl or carboxyl-functionalized ILs were developed and found to be much more active. Furthermore, these ILs are chemically immobilized on solid supports, including silica, resin, zeolites, and chitosan, which show high stability and efficiency.
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This work was supported by National Basic Research Program of China (2009CB219901), and National Science Fund of China (21006117).