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Volume 60, Issue 3
  • ISSN: 2056-5135


Ventilation air methane (VAM) found in coal mines is a huge and global problem because it acts as a greenhouse gas (GHG) contributing to climate change. Methods for removing this methane and reducing its impact have to date been limited due to a lack of legislative drivers and a technological focus on reducing the emissions of higher hydrocarbons. Now a new technology, known as COMETTM, has been developed at Johnson Matthey in collaboration with Anglo Coal for abating this methane emission source. This article describes the development of the catalytic system and its engineering aspects to the point where the technology is ready for commercial launch.


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  1. Solomon S., Qin D., Manning M., Marquis M., Averyt K., Tignor M. M. B., Miller H. L. Jr, and Chen Z. “Climate Change 2007: The Physical Science Basis”, eds. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, New York, USA, 2007 [Google Scholar]
  2. Coalbed Methane Outreach Program (CMOP): Basic Information: (Accessed on 8th June 2016)
  3. Reference Information: Lower and Upper Explosive Limits for Flammable Gases and Vapors (LEL/UEL): (Accessed on 8th June 2016)
  4. COP21: United Nations Climate Change Conference, Paris, France, 30th November–12th December, 2015 LINK
  5. Mattus R. ‘MEGTEC VAM Processing: GMI-Coal Status Update Report’, Coal Mining Methane Abatement Seminar, Sydney, Australia, 4th–6th September, 2012 LINK [Google Scholar]
  6. PR Newswire: CONSOL Energy and Verdeo Group to Develop First Large Coal Mine Ventilation Air Methane Abatement Project in West Virginia, 2nd June, 2010: (Accessed on 8th June 2016)
  7. Regulation (EU) No 421/2014 of the European Parliament and of the Council of 16 April 2014 amending Directive 2003/87/EC establishing a scheme for greenhouse gas emission allowance trading within the Community, in view of the implementation by 2020 of an international agreement applying a single global market-based measure to international aviation emissions, Text with EEA relevance; Official Journal of the European Union, L 129/1, 30th April, 2014 LINK
  8. Title 17 ‘Public Health’, Division 3 ‘Air Resources’, Chapter 1 ‘Air Resources Board’, Subchapter 10 ‘Climate Change’, Article 5 ‘California Cap on Greenhouse Gas Emissions and Market-Based Compliance Mechanisms’, Barclays Official California Code of Regulations, Sacramento, California, USA, 27th May, 2016
  9. Somers J. ‘What Next for VAM?’, CBM Review, January 2012 LINK [Google Scholar]
  10. “Assessment of the Worldwide Market Potential for Oxidizing Coal Mine Ventilation Air Methane”, Air and Radiation (6202-J), EPA 430-R-03-002, United States Environmental Protection Agency, USA, 2003 [Google Scholar]
  11. “BP Statistical Review of World Energy 2015”, 64th Edition, BP Plc, London, UK, June 2015 [Google Scholar]
  12. Myhre G., Shindell D., Bréon F.-M., Collins W., Fuglestvedt J., Huang J., Koch D., Lamarque J.-F., Lee D., Mendoza B., Nakajima T., Robock A., Stephens G., Takemura T., Zhang H., Stocker T. F., Qin D., Plattner G.-K., Tignor M., Allen S. K., Boschung J., Nauels A., Xia Y., Bex V., and Midgley P. M. ‘Anthropogenic and Natural Radiative Forcing’, in “Climate Change 2013: The Physical Science Basis”, eds. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, UK and New York, USA, 2013 LINK [Google Scholar]
  13. Simmons C. “Methane – Air Mixtures: Autoignition Temperature Testing”, Chilworth Technology Ltd, Report number S109058R1V1/12, 2013 [Google Scholar]
  14. Technology Transfer Network Clearinghouse for Inventories & Emissions: Catalytic Oxidizer: (Accessed on 8th June 2016)
  15. Cullis C. F., and Willatt B. M. J. Catal., 1983, 83, (2), 267 LINK [Google Scholar]
  16. Anderson R. B., Stein K. C., Feenan J. J., and Hofer L. J. E. Ind. Eng. Chem., 1961, 53, (10), 809 LINK [Google Scholar]
  17. Ribeiro F. H., Chow M., and Dallabetta R. A. J. Catal., 1994, 146, (2), 537 LINK [Google Scholar]
  18. Card R. J., Schmitt J. L., and Simpson J. M. J. Catal., 1983, 79, (1), 13 LINK [Google Scholar]
  19. Coté M. ‘Summary of U.S. Coal Mine Methane Emissions & Available CMM Resources’, 2014 US Coal Mine Methane Conference, Pittsburgh, USA, 18th November, 2014 [Google Scholar]
  20. Su S., Teakle P., Chen H., Xue S., van Diem D., and Carras J. “Characterisation and Cleaning of Mine Ventilation Air Flows”, The Australian Coal Industry’s Research Program Report (ACARP) C13072, 2005 [Google Scholar]
  21. van Giezen J. C., van den Berg F. R., Kleinen J. L., van Dillen A. J., and Geus J. W. Catal. Today, 1999, 47, (1–4), 287 LINK [Google Scholar]
  22. Mars P., and van Krevelen D. W. Chem. Eng. Sci., 1954, 3, (1), 41 LINK [Google Scholar]
  23. ‘Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems’, IEC 61508, 2nd Edn., International Electrotechnical Commission, Geneva, Switzerland, 2010 [Google Scholar]
  24. ‘Functional Safety – Safety Instrumented Systems for the Process Industry Sector’, IEC 61511, International Electrotechnical Commission, Geneva, Switzerland, 2016 [Google Scholar]
  25. Sammarco J. J., and Fisher T. J. ‘Mining Product: Programmable Electronic Mining Systems: Best Practice Recommendations (In Nine Parts), Part 2: 2.1. System Safety’, Centers for Disease Control and Prevention, Pittsburgh, USA, 2001 [Google Scholar]
  26. Boxho J., Strassen P., Mucke G., Noack D., Jeger C., Lescher L., Browning E., Dunmore R., and Morris I. “Firedamp Drainage: Handbook for the Coalmining Industry in the European Community”, Verlag Glückauf, Essen, Germany, 1980 [Google Scholar]
  27. Watson D., and Swinney J. ‘Process for Removing Methane from a Gas’, World Appl. 2015/059,453 [Google Scholar]
  28. California Carbon Dashboard: Carbon Prices, the Latest News, and California Policy: (Accessed on 8th June 2016)

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  • Article Type: Research Article
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