Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/5287
Título: Descrição das unidades de recuperação de enxofre na refinaria de Sines
Autor: Silva, Pedro Miguel Cavaleiro Santos
Orientador: Duarte, Elizabeth Fernandes de Almeida
Santos, Maria António
Palavras-chave: sulfur recovery
Data de Defesa: 2012
Editora: ISA/UTL
Citação: Silva, P.M.C.S. - Descrição das unidades de recuperação de enxofre da refinaria de Sines. Lisboa: ISA, 2012, 64 p.
Resumo: This work aims to highlight the importance of sulfur recovery units, the procedural and environmental aspects, respectively, in the oil refinery. This processes at Sines Refinery where summary explained and their environmental impact was short seen as well. Without a good performance of sulphur recovery units, lifetime of facilities decreases due to corrosion of the equipment, acknowledging that sulphur poisoning of catalysts makes impossible the operation of catalytic units and concordance with the legislation in force. From a simple atmospheric distillation unit to a more complex one as hydrocracker, lighter chains have to be treated as a guarantee of proper operation of all units downstream as fuel gas and hydrogen consumers. It made a description of the recovery system installed and improvements planned for these units, which responded to a more restrictive legislation. In the description of the sulfur recovery system is given an important relevance to the process CLAUS and SUPERCLAUS® to better characterize the existing system. The current rate of sulfur recovery in Sines Refinery, are roughly 97 percent of which falls within the theoretical values, but the refinery during the licensing process undertaken to achieve higher recovery rates to 98 percent which boosted the improvement project. The project for improvement of manufacturing areas I and II, will lead to an increase, in range of one percentage point, of extraction sulfur from the gaseous effluent. This improvement will be reflected in the seizure of approximately 270 tons of sulfur per year, which was previously issued in the form of SO2 into the main stack of Sines Refinery. The air is a natural resource depending on it all life as we know it whose largely influence, ecosystems, which quality cannot be separated of sustainable development and hence the relevance of the sulphur recovery units.
Descrição: Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/5287
Aparece nas colecções:BISA - Dissertações de Mestrado / Master Thesis

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