The law imposes a limit of 650 mg / Nm³ for the emission of NOx (nitrogen oxides) into the atmosphere, but our company is beyond compliance, because we always want to do better. Vidal Ramos’ plant in Santa Catarina, is the biggest proof of that. There, we take two actions: the use of alternative fuels and a process known as SNCR.
Main Goals: reduce the emission of NOx in the atmosphere, generated during industrial processes.
Generated Benefits: reduction of NOx emitted in the atmosphere and use of urea in the production process.
The type of fuel used in industrial processes makes all the difference in NOx emissions levels in the atmosphere. Therefore, using industrial waste and disused tires as alternative fuels was a major step in achieving our goal.
The second step was to deploy the SNCR (Selective Non Catalytic Reduction) system which makes use of the urea solution as a reducing agent. The process, which has large equipment to the capitation of NOx, is quite expensive, especially because of the great need for agent, but Carlos Roberto Moreira da Cunha, Vlamir Braz and Mario Henrique Interlenghi have developed methods to operate it with the same efficiency even using a smaller amount of urea.