AVALIAÇÃO DAS EMISSÕES ATMOSFÉRICAS NO PROCESSO DE COZIMENTO DE ANODOS COM A SUBSTITUIÇÃO DO ÓLEO DIESEL POR FLEXGAS

Detalhes bibliográficos
Ano de defesa: 2014
Autor(a) principal: Santos, Elisângela da Silva Moura lattes
Orientador(a): SOLEDADE, Luiz Edmundo Bastos lattes
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal do Maranhão
Programa de Pós-Graduação: PROGRAMA DE PÓS-GRADUAÇÃO EM ENERGIA E AMBIENTE/CCET
Departamento: Energia e Ambiente
País: BR
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://tedebc.ufma.br:8080/jspui/handle/tede/678
Resumo: The search for sustainable processes has led industries to invest in innovative and cleaner solution for their production chain, particularly in its atmospheric emissions. Thus, the company studied opted for replacement of the processes of diesel oil by a new fuel termed "flexgas". The baking process of anodes is a major step in the aluminum production process. This step consists in burning diesel oil in pipes which heat indirectly the anodes, formed by a mixture of coke, pitch and butts. This heating should be controlled as it has influence on the quality of the anodes, and consequently the process of aluminum production within the electrolytic cells. In this work we analyze emissions data comparing before and after the replacement of the fuel. We investigated the influence of other operational variables that can affect the results of the emissions of particulates, fluorides and sulfur dioxide in the chimneys of the anode baking furnaces. For this, we propose the first model of multiple linear regression. As a computational tool, we use the R software for the calculation of descriptive measures, model fitting and parameters estimation.