121st General Meeting of the KCS

Type Poster Presentation
Area Industrial Chemistry
Room No. Event Hall
Time 4월 19일 (목요일) 11:00~12:30
Code IND.P-8
Subject Synthesis of polyehthyleneimine-modified titanate nanotubes for CO2 capture and separation under flue gas condition
Authors Young-Jung Heo, Soo-Jin Park*
Department of Chemistry, Inha University, Korea
Abstract 1Amine-modified adsorbents have been interested due to their excellent performance on carbon dioxide (CO2) capture. In this work, we have prepared titanate nanotubes (TNTs) with amine modification using polyethyleneimine (PEI) for selective CO2 capture under flue gas condition. TNTs have prepared by hydrothermal reaction, and PEI-functionalized TNT (TNT-P) have prepared by wet impregnation method. The strong CO2 affinity through proper amine modification of TNTs-P allow for selective and favorable CO2 adsorption onto adsorbents. To calculate CO2/N2 selectivity, CO2 and /N2 adsorption isotherms were applied Langmuir model. Furthermore, the multi-component CO2 adsorption performances were investigated by the gravimetric method under flue gas (15% CO2 in N2 as gas condition in fossil fuel power plants). The highest CO2/N2 selectivity of 82 and CO2 uptakes for CO2/N2 (15:85) gas mixture of 3.15 wt% are attained at 313 K. This result suggests that TNT-Ps is a promising adsorbent for the challenges of current CO2 capture and separation technologies and can provide a development strategy for amine-modified adsorbents.
E-mail heoyj1211@naver.com