Regenerative Energie
Natural gas qualities in Europe will become increasingly diverse and combustion characteristics (Wobbe index, methane number) will vary over wider ranges. The article presents the gas qualities to be expected over the medium term and analyses and discusses their effects on future gas utilisation. Aside from rich (high-calorifi c) LNG qualities, future natural gas and biomethane qualities are not expected to cause problems in gas utilisation in most European countries. With certain restrictions this also applies where up to 10 % of hydrogen produced from renewable surplus electricity is admixed except for three important applications: tanks for compressed natural gas used as a motor fuel, gas turbines with premixed burners and underground porous rock storage facilities; here further R&D input is still required. Biomethane produced from contaminated feedstock may carry undesirable trace substances. Particularly careful treatment and quality control are then necessary. Hydrogen or methane produced from renewable surplus electricity will have a high purity level and, like biomethane, will contribute to further reducing CO2 emissions. This will make natural gas an even more climate-protecting fuel compared with other fossil fuels.
The gases injected into the European gas transportation system will become increasingly diverse: while conventional pipeline gases from the North Sea, Russia, the Netherlands, Algeria and other producer regions are not expected to change signifi cantly, liquefi ed natural gas (LNG) as well as biomethane will be gaining importance and, in the medium term, also hydrogen or methane from surplus renewable electricity as well as gases produced by the gasifi cation of solid biomass. The diversifi - cation trend is welcome as it enhances supply security. Moreover, gases from renewable sources help reduce climate-harming carbon dioxide emissions (greening of gas). But, as a result, the market will see a greater variety of gas qualities and gas qualities will vary over a wider range. Gas appliances will have to respond increasingly fl exibly. Continued reliable operation of the more than 160 million gas appliances in Europe must not be aff ected. The paper describes diff erent gases and their effects on future gas utilisation.
| Copyright: | © Vulkan-Verlag GmbH |
| Quelle: | GWF international 2 2011 (Oktober 2011) |
| Seiten: | 7 |
| Preis: | € 7,00 |
| Autor: | Dr. Klaus Altfeld Dr. Peter Schley |
| Diesen Fachartikel kaufen... (nach Kauf erscheint Ihr Warenkorb oben links) | |
| Artikel weiterempfehlen | |
| Artikel nach Login kommentieren | |
Europäische Rechtsvorgaben und Auswirkungen auf die Bioabfallwirtschaft in Deutschland
© Witzenhausen-Institut für Abfall, Umwelt und Energie GmbH (11/2025)
Bioabfälle machen 34 % der Siedlungsabfälle aus und bilden damit die größte Abfallfraktion im Siedlungsabfall in der EU. Rund 40 Millionen Tonnen Bioabfälle werden jährlich in der EU getrennt gesammelt und in ca. 4.500 Kompostierungs- und Vergärungsanlagen behandelt.
Vom Gärrest zum hochwertigen Gärprodukt - eine Einführung
© Witzenhausen-Institut für Abfall, Umwelt und Energie GmbH (11/2025)
Auch mittel- bis langfristig steht zu erwarten, dass die Kaskade aus anaerober und aerober Behandlung Standard für die Biogutbehandlung sein wird.
Die Mischung macht‘s - Der Gärrestmischer in der Praxis
© Witzenhausen-Institut für Abfall, Umwelt und Energie GmbH (11/2025)
Zur Nachbehandlung von Gärrest aus Bio- und Restabfall entwickelte Eggersmann den Gärrestmischer, der aus Gärresten und Zuschlagstoffen homogene, gut belüftbare Mischungen erzeugt. Damit wird den besonderen Anforderungen der Gärreste mit hohem Wassergehalt begegnet und eine effiziente Kompostierung ermöglicht.