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

• Type: Article in International Scientific Journal
• Date: 2004

Authors

R. Rego (Author) Other; Adélio Mendes (Author) FEUP

Journal

Title: Sensors and Actuators, B: Chemical

Vol. 103 No. 1-2

Pages: 2-6

ISSN: 0925-4005

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 15 Citations

ISI Web of Science

Scopus - 18 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology > Chemical engineering

CORDIS: Technological sciences > Technology > Chemical technology

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5