[1D01-08] CO2 recovery/conversion(1)

11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)Japanese

[1D08] Structural analysis of monocarbamic acid formed by CO₂ absorption of isophoron diamine in solid-liquid phase separation DAC system.

○Osamu Kumagai¹, Rikuya Yagihara¹, Soichi Kikkawa¹, Tatsuya Higaki¹, Hideyuki Kawasoko¹, Kentaro Yonesato², Naoya Kanbayashi³, Hidetaka Yamada⁴, Kosuke Suzuki², Seiji Yamazoe¹ (1. Tokyo Metropolitan University, 2. University of Tokyo , 3. Kyoto Institute of Technology, 4. Kanazawa University)

Keywords:

direct air capture,liquid–solid phase separation,isophorone diamine

In recent years, the development of direct air capture (DAC) technologies for capturing CO2 directly from the air has attracted attention. We have reported that a solid–liquid phase-separation type DAC system, which utilizes the formation of solid carbamic acid from diamines upon CO2 absorption, is highly effective. In this study, we analyzed the structure of carbamic acid formed from isophorone diamine, which enables highly efficient CO2 absorption.