HCNG explained

HCNG or H2CNG (hydrogen compressed natural gas) is a mixture of compressed natural gas and 4–9 percent hydrogen by energy.[1] It may be used as a fuel gas for internal combustion engines[2] [3] [4] and home appliances.

(regarding the acronyms in the above emissions chart:

AVL = Average Levels?
CNG = Compressed Natural Gas
HCNG = Hydrogen and CNG blend
NOX = Nitrogen Oxides
NMHC = Non-Methane Hydrocarbons?
CH4 = Methane
THC = Total Hydrocarbons?
CO = Carbon Monoxide)

HCNG dispensers can be found at Hynor (Norway) Thousand palms and Barstow,[5] California, Fort Collins, Colorado (all US), Chongqing[6] and Shanxi (China),[7] [8] Pico Truncado (Argentina),[9] Islamabad (Pakistan),[10] [11] Dunkerque (France),[12] [13] Gothenburg Sweden, Rio de Janeiro[14] (Brazil), Emilia-Romagna,[15] [16] Lombardia[17] [18] (Italy), Dwarka and Faridabad (Delhi), India[19] [20] [21] and the BC hydrogen highway in Canada.

HCNG for mobile use is premixed at the hydrogen station.

Research

In the town of Nes on the island of Ameland in the Netherlands, a four-year (2008-2011) field test was carried out where 20% hydrogen was added to the local distribution net supplying a complex of 14 apartments.[22] The appliances involved were kitchen stoves, condensing boilers, and micro-CHP boilers.[23]

The use of existing natural gas pipelines for HCNG was studied by NaturalHy.[24]

To get the most out of an internal combustion engine in transportation if higher levels of hydrogen are added, modifications have to be made to the engine and the control strategy.[25] [26] [27] The hydrogen in the blend leads to lower CO2 emissions.[28]

Codes and standards

The National Fire Protection Association 52 presently covers CNG and hydrogen fueling stations. Blends with < 20% hydrogen by volumeare treated identically to CNG.[29] For the use of blends with more than 30[30] -40 % of hydrogen in volume[31] decision support tools[32] for the design are used to ensure safe use.

See also

External links

Notes and References

  1. http://www1.eere.energy.gov/hydrogenandfuelcells/pdfs/ihfpv_proceedings.pdf International hydrogen fuel and pressure vessel forum 2010
  2. http://www.sae.org/technical/papers/2007-01-2045 Test of blends of hydrogen and natural gas in a light-duty vehicle
  3. http://www.mirlabs.org/ijcisim/regular_papers_2009/IJCISIM_Vol_2_Paper_9.pdf Development of HCNG blended fuel engine with control of NOx emissions
  4. http://www.doiserbia.nb.rs/img/doi/0354-9836/2011/0354-98361100044N.pdf Hydrogen enriched compressed natural gas
  5. http://www.osti.gov/bridge/servlets/purl/949990-YXC1Ot/949990.pdf Hydrogen-enhanced natural gas vehicle program
  6. http://www.chinabuses.org/news/2011/0117/article_3998.html Chongqing Wuzhoulong Works with Tsinghua University for HCNG Buses
  7. http://www1.eere.energy.gov/hydrogenandfuelcells/pdfs/ihfpv_mao.pdf HCNG in China
  8. http://www.sxgxny.com/ Sxgxny (Shanxi)
  9. http://www.ngvjournal.com/en/lng--h2--blends/item/3777-argentinas-first-hcng-patrol-car Argentina’s first HCNG patrol car
  10. http://www.ngvjournal.com/en/markets/item/8082-prime-minister-syed-yousaf-raza-gillani-supports-non-stop-cng-loading-in-pakistan Prime Minister Syed Yousaf Raza Gillani supports non-stop CNG loading in Pakistan
  11. http://pakistan.onepakistan.com/news/city/peshawar/40303-pm-dedicate-three-gas-fields-for-cng-industry-hcng-to-import-immediately-with-zero-import-duty.html PM dedicate three gas fields for CNG Industry, HCNG to import immediately with zero import duty
  12. http://www.igu.org/html/wgc2006/pdf/paper/add11093.pdf ALT-HY-TUDE Project
  13. Web site: Position Paper: Natural gas – hydrogen blends technology . 2012-07-19 . https://web.archive.org/web/20130513010655/http://www.ngvaeurope.eu/members/position-papers/NGVA-Europe-Position-Paper-on-Natural-Gas-Hydrogen-Blends-Technology.pdf . 2013-05-13 . dead .
  14. http://www.ifi.unicamp.br/ceneh/WICaC2008/PDF/Cristina_Saba.pdf Petrobras and the infrastructure for hydrogen supply in Brazil
  15. http://www.fisita2012.com/programme/programme/pdf/F2012-A03-002.pdf Hydrogen-methanemixtures: vehicle tests performed by ENEA
  16. http://www.mhybus.eu/en/mhybus_en.htm mhybus
  17. http://www.h2it.org/en/2011/news/notizie-nazionali/10-panda-a-idrometano-nel-parco-auto-della-regione-lombardia Regione Lombardia: 10 hydromethane Pandas
  18. http://www.ngvjournal.com/en/lng--h2--blends/item/5177-italian-highway-presents-first-prototype-of-hydrogen-methane-iveco-ecodaily Italian highway presents first prototype of hydrogen-methane Iveco Ecodaily
  19. http://www1.eere.energy.gov/hydrogenandfuelcells/pdfs/cng_h2_workshop_6_pal.pdf Successful adoption of CNG and emerging CNG-H2 program in India
  20. http://www.expressindia.com/latest-news/automotive-research-body-develops-greener-fuel-engine-for-light-vehicles/656704/ Automotive research body develops greener fuel engine for light vehicles
  21. https://web.archive.org/web/20120314044522/http://epaper.timesofindia.com/Default/Scripting/ArticleWin.asp?From=Archive&Source=Page&Skin=TOI&BaseHref=CAP/2009/08/27&PageLabel=3&EntityId=Ar00301&ViewMode=HTML&GZ=T Hydrogen–CNG Fuel To Debut During Games
  22. http://members.igu.org/old/IGU%20Events/igrc/igrc2011/igrc-2011-proceedings-and-presentations/poster%20paper-session%201/P1-34_Mathijs%20Kippers.pdf Pilot project on hydrogen injection in natural gas on island of Ameland
  23. https://translate.google.com/translate?u=http%3A%2F%2Fwww.waterstofvereniging.nl%2Fnieuws%2Fopinie-ameland.html&sl=nl&tl=en&hl=en&ie=UTF-8 Ameland Field testing
  24. http://www.naturalhy.net/docs/Naturalhy_Brochure.pdf Using the existing natural gas system for hydrogen
  25. http://www.sae.org/technical/papers/2008-01-1633 A study on quasi-dimensional combustion model of a spark ignition HCNG engine suitable for various hydrogen fractions (SAE 2008)
  26. Web site: Natural gas vehicle research roadmap -Pag.22 . 2009-10-28 . 2017-01-25 . https://web.archive.org/web/20170125211655/http://www.energy.ca.gov/2008publications/CEC-500-2008-044/CEC-500-2008-044-D.PDF . dead .
  27. http://www.osti.gov/bridge/servlets/purl/809113-Vyj5QC/native/809113.pdf High-percentage hydrogen/cng blend Ford F-150 operating summary
  28. Navarro. Emilio. Leo. Teresa J.. Corral. Roberto. CO2 emissions from a spark ignition engine operating on natural gas–hydrogen blends (HCNG). Applied Energy. 101. 2013. 112–120. 0306-2619. 10.1016/j.apenergy.2012.02.046.
  29. Web site: Hydrogen enriched natural gas technology-pag.36 . 2009-10-28 . https://web.archive.org/web/20110706155735/http://www.ebeh.int.gov.br/imagens/PDFs/Marshal%20Miller2.pdf . 2011-07-06 . dead .
  30. Web site: Hydrogen and natural gas blends; Converting light and heavy duty vehicles . 2012-07-19 . 2022-08-12 . https://web.archive.org/web/20220812191739/https://www.hydrogen.energy.gov/pdfs/review04/tv_15_collier.pdf . dead .
  31. Web site: Use of blends of hydrogen and natural gas in urban vehicles in the transition towards an hydrogen economy . 2012-07-19 . 2022-01-10 . https://web.archive.org/web/20220110015922/http://www.dmf.unicatt.it/bong-hy/doc_finali/carica/wih2.pdf . dead .
  32. http://www.naturalhy.net/docs/final_public_presentation/09.%20WP6%20-%20Decision%20Support%20Tool.pdf Decision Support Tool

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