CO2 recovery from alkanol-amine solution using integrated stationary evacuated concentrators

H. Naito; F. Hosho; H. Yugami; H. Arashi

doi:doi:10.1051/jp4:1999354

Issue		J. Phys. IV France Volume 09, Number PR3, March 1999 Proceedings of the 9^th SolarPACES International Symposium on Solar Thermal Concentrating Technologies STCT 9


Page(s)		Pr3-349 - Pr3-353
DOI		https://doi.org/10.1051/jp4:1999354

Proceedings of the 9^th SolarPACES International Symposium on Solar Thermal Concentrating Technologies
STCT 9

J. Phys. IV France 09 (1999) Pr3-349-Pr3-353
DOI: 10.1051/jp4:1999354

CO₂ recovery from alkanol-amine solution using integrated stationary evacuated concentrators

H. Naito, F. Hosho, H. Yugami and H. Arashi

Graduate School of Engineering, Tohoku University, Aoba 01, Aramaki, Aoba-ward, Sendai 980-8579, Japan

Abstract
The removal of carbon dioxide from flue gas is one of the most important issues for preventing a greenhouse effect. An alkanolamine in aqueous solution absorbs CO₂ and is regenerated by CO₂ recovery in the temperature range from 100 to 120 °C. In order to obtain the energy for CO₂ recovery, we are studying for solar energy utilization as a heat source for CO₂ recovery process. This temperature range can be obtained using a stationary trough-type concentrator. We designed and fabricated CO₂ recovery system which consists of an integrated stationary evacuated concentrator and an amine regenerator. CO₂ was successfully recovered using this system, and the system performance and properties of amine regeneration process were evaluated. The solar collecting area required for CO₂ recovery was also evaluated.