Desenvolvimento de metodo experimental para o estudo cinetico da reação de dessulfuração com amonia

AUTOR(ES)
DATA DE PUBLICAÇÃO

1990

RESUMO

The main objective of this work is the experimental method development to kinectic study of the flue gas desulphurization reaction with ammonia. At first, it is identified the main chemical and physical phenomenons envolved in the reactive system, by analysis of the works of other authors about chemical-liquid-vapor equilibrium in weak volatile eletrolites systems, with respect to temperature and composition. It is showed a mechanism to the reactions for the cited system, in alkaline medium and steady state. According to research necessity, it is developed a experimental method that allow the flue gas desulphurization reaction with ammonia study, in gas-liquid system, verifyng the main parameters influence over sulfur dioxide absorption rate. The gas-liquid reactor used is a double mixture reactor, that provide plane and determined interfacial area. This reactor allow to change each phase mixture conditions. For the sulfur dioxide analysis is used the hydrogen peroxide method, adapted to the reaction system conditions. The experimental datas obtained show good reprodutibility and precision, and they show that there is a maximum sulfur dioxide absorption at 50oC, under studied conditions

ASSUNTO(S)

amonia dessulfuração

ACESSO AO ARTIGO

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