Síntese e caracterização de hidratos de metano

Detalhes bibliográficos
Ano de defesa: 2014
Autor(a) principal: Silva, Vanessa Silva da
Orientador(a): Lourega, Rogério Vescia lattes
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Pontifícia Universidade Católica do Rio Grande do Sul
Programa de Pós-Graduação: Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais
Departamento: Faculdade de Engenharia
País: BR
Palavras-chave em Português:
Área do conhecimento CNPq:
Link de acesso: http://tede2.pucrs.br/tede2/handle/tede/3278
Resumo: Gas hydrates are solids formed by crystal structures similar to ice, which may form when the water is in contact with low weight molecular gases (such as H2S, CO2, NH3 and/or light hydrocarbons), under certain conditions of temperature and pressure. Several studies show that gas hydrates may be a wide source of natural gas in the future, especially considering the fact that oil production tends to decline due to the high cost involved, which makes the interest in alternative sources, such as natural gas derived from unconventional sources, grow. However, in order to make gas hydrate exploitation possible, it's necessary to know how they are formed and what are the conditions that provide stability and dissociation. Different apparatus have been used to obtain gas hydrate. In this scenario, the present paper aims to use a unique system called Pilot Plant Synthesis of Gas Hydrates to synthesize different hydrates, with different compositions, in various reaction conditions. It is noticed that the present study was based on the synthesis of hydrates with its precipitation of at larger scales. The methane hydrates were characterized by X-ray diffractometer, Gas Chromatograph and Gas Chromatography Isotope Ratio Mass Spectrometer.