Research Institute of Innovative Technology for the Earth

Kawasaki Jukogyo Kabushiki Kaisha

Hidetaka Yamada

Katsunori Yogo

Kazuo Tanaka

Takeshi Okumura

Shohei Nishibe

Katsuhiro Yoshizawa

Firoz Alam Chowdhury

Ryohei Numaguchi

Shin Yamamoto

A carbon dioxide separation recovery method includes: bringing a particulate carbon dioxide adsorbent and a treatment target gas containing carbon dioxide into contact with each other to make the carbon dioxide adsorbent adsorb the carbon dioxide contained in the treatment target gas; and bringing the carbon dioxide adsorbent which has adsorbed the carbon dioxide and superheated steam into contact with each other to desorb the carbon dioxide from the carbon dioxide adsorbent and thereby regenerate the carbon dioxide adsorbent, and recovering the desorbed carbon dioxide. A saturation temperature of the superheated steam which is brought into contact with the carbon dioxide adsorbent is not more than a temperature of the carbon dioxide adsorbent which contacts the superheated steam. The regenerated carbon dioxide adsorbent is utilized for adsorption of the carbon dioxide again without being subjected to a drying step.

Carbon dioxide separation recovery system and method

Disclosed are a carbon dioxide separating material comprising a polyamine carrier in which a polyamine having at least two isopropyl groups on one or more of the nitrogen atoms is loaded on a support, and a method for separating or recovering carbon dioxide using the carbon dioxide separating material.

Carbon dioxide separating material and method for separation or recovery of carbon dioxide

Growing community of inventors

Kizugawa, Japan

Hidetaka Yamada