Fundamental Study on Solidification of CO₂ on a cooling plate

Abstract

In conventional natural gas combustion power plants, vaporization heat of liquefied natural gas(LNG) has been supplied from sea water and/or air. In the plants, cold and liquefaction energy have been lost without any effective utilization. An advanced technology in which carbon dioxide in the flue gas is solidified and separated as dry-ice has been developed. Carbon dioxide in the flue gas from a LNG combined cycle is cooled and solidified by the evaporation of LNG.
Fundamental studies using a cooling box were carried out to measure the solidification rate of carbon dioxide in the flue gas on a cooling plate. The solidified particles had a rectangular prism-shaped non-crystallographic structure.