Carbon dioxide/methane gas sensor based on the permselectivity of polymeric membranes for biogas monitoring

• Tipo: Artigo em Revista Científica Internacional
• Data: 2004

Autores

R. Rego (Autor) Outra; Adélio Mendes (Autor) FEUP

Revista

Título: Sensors and Actuators, B: Chemical

Vol. 103 Nº 1-2

Páginas: 2-6

ISSN: 0925-4005

Editora: Elsevier

Indexação

ISI Web of Knowledge - 15 Citações

ISI Web of Science

Scopus - 18 Citações

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

CORDIS: Ciências Tecnológicas > Tecnologia > Tecnologia química

Outras Informações

ID Authenticus: P-000-8FV

DOI: 10.1016/j.snb.2004.01.013

Abstract (EN): Membrane based-sensors have been used for determining the composition of bi-component mixtures in the 0-100% range, such as oxygen/nitrogen, carbon dioxide/helium, carbon dioxide/methane, hydrogen/nitrogen, and hydrogen/methane. These sensors are suited for the low cost and low/medium precision market. The present study describes a carbon dioxide/methane sensor suitable for biogas composition monitoring. The membrane used is poly(dimethylsiloxane) (PDMS) hollow fiber. The calibration curves were obtained at three different temperatures. The results clearly show that the permeate pressure of the sensor is related to the gas mixture composition at a given temperature. The sensor enables quantitative carbon dioxide analysis in binary mixtures of carbon dioxide/methane with fast, continuous, reproducible, and long-term stable response.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5