Limestone calcination optimization of vertical container oven

Abstract

Producing lime demand high energy consumption and implies high CO2 emissions and other environmental impacts significant. This work aims to establish a methodology for optimizing the calcination of limestone kilns normal vertical Cuba, to consider the influence of the quality of lime on the economic contribution margin. In this case they are used as tools work the method of exergy analysis and the method of genetic algorithms was used. The exergy balance limestone calcination identified that irreversibilities of combustion and heat transfer time and exergy loss in the exhaust gases, are the principal process inefficiencies. The implementation of the proposed optimization methodology reduced the energy consumption by 4.6% and increased the quality of lime at 5.3%.