Next Article in Journal
Fast Pyrolysis of Four Lignins from Different Isolation Processes Using Py-GC/MS
Previous Article in Journal
A Flywheel Energy Storage System Based on a Doubly Fed Induction Machine and Battery for Microgrid Control
Article Menu

Export Article

Open AccessArticle
Energies 2015, 8(6), 5090-5106; doi:10.3390/en8065090

Evaluation of CH4 Gas Permeation Rates through Silicone Membranes and Its Possible Use as CH4-Extractor in Gas Hydrate Deposits

German Research Centre for Geoscience (GFZ) Section 4.2, Telegrafenberg, Potsdam 14473, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Enrico Sciubba
Received: 31 March 2015 / Revised: 17 May 2015 / Accepted: 25 May 2015 / Published: 1 June 2015
View Full-Text   |   Download PDF [2140 KB, uploaded 1 June 2015]   |  

Abstract

This preliminary study discusses the option of using silicone (PDMS) tubes for the extraction and monitoring of CH4 gas from hydrate deposits during decomposition. For this, the gas flow of gaseous and dissolved CH4 through hand-manufactured silicone tube membranes has been tested on a small lab scale. The permeability of pure CH4 gas at ambient pressure and 295K is in good agreement with literature reports. The permeability rate of CH4 derived from dissolved methane is expectedly lower and decreases by more than half. Theoretical assumptions and lab results are not in straightforward correlation. This leads to the conclusion that experimental constraints influence the permeability. These are mainly an increase of the gas stream resistivity due to the membrane-filling and membrane-sediment contact points as well as the effect of degassing dissolved CH4 on the tube surface due to pressure gradients. Therefore, the use as a monitoring tool needs to be individually tested before the respective application. Due to the robust nature of the membranes, their application as a tool for capturing gaseous CH4 during hydrate decomposition is a feasible goal. View Full-Text
Keywords: polydimethylsiloxan (PDMS); silicone membrane; gas hydrate; CH4 extraction; dissolved CH4 polydimethylsiloxan (PDMS); silicone membrane; gas hydrate; CH4 extraction; dissolved CH4
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Beeskow-Strauch, B.; Schicks, J.M.; Zimmer, M. Evaluation of CH4 Gas Permeation Rates through Silicone Membranes and Its Possible Use as CH4-Extractor in Gas Hydrate Deposits. Energies 2015, 8, 5090-5106.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top