Authors: Lenka Jílková,VeronikaVrbová, Karel Ciahotný and Marek Staf
Abstract: We tested ten natural limestone materials based on calcium carbonate (CaCO3) using special sorption system. The chemisorption tests with limestones were performed in small laboratory scale in fixed bed in CO2 atmosphere at 650 °C. We wanted to assess the verification of using these materials for the high temperature sorption of carbon dioxide and pick up the best one for following tests in larger scale. The process of CO2 sorption should be used for removal of carbon dioxide and other acidic substances from flue gases. The sample with lowest CO2 sorption capacity was the Úpohlavy sample. The best tested samples for using in high temperature carbonate looping technology, based on the sorption capacities of carbon dioxide, are Libotín sample, Čertovy schody sample, Tetín sample.
Keywords: CO2 sorption, high temperature carbonate looping technology, limestone, chemisorption