Triagem da qualidade de amostras de GNV e GLP usando espectrometria NIR e quimiometria

• Ano de defesa: 2010
• Autor(a) principal: Dantas, Hebertty Vieira
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal da Paraí­ba; BR; Química; Programa de Pós-Graduação em Química; UFPB
• Palavras-chave em Português: Triagem; Espectroscopia NIR; Gás Natural Veicular - GNV; Gás Liquefeito de Petróleo - GLP; Quimiometria; Screening; NIR spectroscopy; Chemometrics; CIENCIAS EXATAS E DA TERRA::QUIMICA
• Link de acesso: https://repositorio.ufpb.br/jspui/handle/tede/7186

The search for new energy sources and concern about environmental problems has caused an increase in the use of gaseous fuels like natural gas (CNG) and liquefied petroleum gas (LPG). The main advantages of these fuels besides clean energy, are low production and processing costs, high efficiency and versatility. Given these realities, there is both growing need and demand for quality controls applicable to these types of fuel. This study proposes quality screening analysis of gaseous fuels using near infrared (NIR) absorption spectroscopy for verifying adulteration and/or nonconformity of LPG and CNG samples. The development of gas handling equipment made possible the construction of different classification models for screening analysis, such as SIMCA, SPA-SPA-LDA and SIMCA. To build and test these models, several samples were grouped as; tampered with, adulterated, and commercially certified standard. The results demonstrated the methodology as effective and robust for performing preliminary analysis of CNG and LPG quality, minimizing normal drawbacks of the quality control reference methods used for these fuels.