A SYSTEM FOR FLUE-GAS HYDRATE-BASED DESALINATION USING LNG COLD ENERGY

摘要

A system for flue-gas hydrate-based desalination using LNG cold energy belongs to the field of hydrate technology application. The CO₂ in the flue-gas is captured based on the hydrate formation. Two stage formation chambers are set to improve the hydrate formation. The two steps to purify the hydrates respectively are the gas separation and the liquid separation. The two methods of hydrate dissociation to realize the recycling of the waste heat of flue-gas and the CO₂ are the heat-exchanged and the exhausted. The present invention realizes the integrated CO₂ capture and seawater desalination with a proper structure and a subtle system and solves the cold energy source for hydrate-based desalination by means of using LNG cold energy. The two stage formation chambers solve the capture of CO₂ in the flue-gas and guarantee the hydrate formation amounts. The two types of dissociation chambers decrease the heat emission by using the waste heat of flue-gas and realize the recycling and storage of CO₂. The system will not be affected by the changes of seasons and environments and has a strong carrying capacity for the flue-gas source change. It is a system with great application value realistic.