초록 |
A large amount of water in flue gas is emitted from power plants. A typical 500 MW coal-fired power plant burns 250 tons of coal and uses 53,600 tons of water per hour. The flue gas with water vapor causes not only aesthetic problem but also slippery safety issue. If some of the water released into the atmosphere can be recovered through a dehumidification technique, it will help to solve the water scarcity problem. Many studies have been conducted to solve this problem through various techniques (desiccant, condenser, plasma, membrane, and so on). Among them, a membrane technique for water recovery is an isothermal process and consumes less energy. The interdependence between water and energy, sometimes called the water-energy nexus, is growing in importance as demand for both water and energy gradually increases. Here, we propose a method of removing and recovering water vapor by using hollow fiber nanocomposite membranes with various nanoparticles. |