Path analysis on CO2 resource utilization based on carbon capture using ammonia method in coal-fired power Plants

With the deepening of carbon capture research using ammonia solution, CO2 disposal problem after carbon capture has become an important limiting factor affecting the industrial applications of carbon capture technology. It can be seen that CO2 not only controls as a greenhouse gas, but also it is a valuable carbon resource at the same time, CO2 resource recycling has a very good market prospects in near future. Two viable paths for CO2 resource utilization based on carbon capture using ammonia solution are divided in the paper. One path is regenerative resource utilization, i.e., rich liquid regenerates after the decarbonization reaction; the desorbed CO2 is sequestrated under geological layer or reused in other fields. Another path is transformed resource utilization; flue gas decarbonization combines with chemical production, and the ingredients produced from the reaction of ammonia with CO2 are transformed, carbon is fixed into nitrogen fertilizer or other chemical products, such as soda. The existing problems and the economic performance of CO2 resource utilization in power plants were reviewed in the paper. CO2 resource utilization based on carbon capture using ammonia solution is beneficial to the carbon emission reduction in coal-fired power plants; especially transformed resource utilization has economic advantage and good application prospects. (C) 2014 Elsevier Ltd. All rights reserved.