Renewable natural gas

Renewable natural gas

Renewable natural gas, also known as sustainable natural gas, is a biogas which has been upgraded to a quality similar to natural gas. A biogas is a gas obtained from biomass. By upgrading the quality to that of natural gas, it becomes possible to distribute the gas to customers via the existing gas grid, and burned within existing appliances. Renewable natural gas is a subset of synthetic natural gas or substitute natural gas (SNG).

Renewable natural gas can be produced economically, and distributed via the existing gas grid, making it an attractive means of supplying existing premises with renewable heat and renewable gas energy, while requiring no extra capital outlay of the customer.

The existing gas network allows distribution of gas energy over vast distances at a minimal cost in energy. Existing networks would allow biogas to be sourced from remote markets that are rich in low-cost biomass (Russia or Scandinavia for example).

Manufacturing

A biomass to SNG efficiency of 70% can be achieved. Manufacturing costs are minimized by maximising production scale, and by locating plant next to transport links (e.g. a port or river) for the chosen source of biomass. The existing gas storage infrastructure would allow the plant to continue to manufacture gas at the full utilisation rate even during periods of weak demand, helping minimise manufacturing capital costs per unit of gas produced. [ Energy Research Centre of the Netherlands [http://www.ecn.nl/docs/library/report/2005/rx05187.pdf 'Heat from Biomass via Synthetic Natural Gas'] ]

Renewable natural gas can be manufactured through two main processes; anaerobic digestion of organic (normally moist) material, or thermal gasification of organic (normally dry) material. In both cases the gas from primary production has to be upgraded in a secondary step to produce gas that is suitable for injection into the gas grid [Danish Gas Technology Centre [http://www.dgc.dk/publikationer/konference/jkj_sustain_gas.pdf 'Sustainable Gas Enters the European Gas Distribution System'] ] .

External links

* [http://www.sgc.se/rapporter/display.asp?ID=1182 SGC Rapport 187 Substitute natural gas from biomass gasification]
* [http://www.sgc.se/Rapporter/Resources/seminar_screen.pdf SGC Rapport on gasification and methanation]

ee also

*Anaerobic digestion
*Renewable energy
*Renewable heat
*Biogas
*Biogas powerplant

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Natural gas — For other uses, see Natural gas (disambiguation). Natural gas extraction by countries in cubic meters per year. Natural gas is a naturally occurring gas mixture consisting primarily of methane, typically with 0–20% higher hydrocarbons[1] …   Wikipedia

  • Natural gas by country — Natural gas production by country. This article includes a chart representing proven reserves, production, consumption, exports and imports of natural gas by country. Below the numbers there is specified which position a country holds by the… …   Wikipedia

  • Substitute natural gas — Substitute natural gas, or SNG, can be produced from fossil fuels such as lignite coal or from biofuels, when it is named Bio SNG.In the Great Plains, USA, approximately 15 TWh/year of SNG from lignite coal is injected into the national gas grid …   Wikipedia

  • Natural gas vehicle — NGV redirects here. For the art gallery in Melbourne, Australia, see National Gallery of Victoria. Fueling (Fiat Multipla) …   Wikipedia

  • Renewable heat — is an application of renewable energy. It refers to the renewable generation of heat, rather than electrical power.Many colder countries consume more energy for heating than electrical power. For example, in 2005 the United Kingdom consumed 354… …   Wikipedia

  • List of countries by natural gas production — 2009 Natural Gas Production World Production of Natural Gas in 2009 2010 Statistical Yearbook In 2009, world production of natural gas was cut down by 2.8% …   Wikipedia

  • List of countries by natural gas proven reserves — This is a list of countries by natural gas proven reserves based on The World Factbook.[1] Based on data from BP at the end of 2009 proved gas reserves are dominated by three countries: Russia (24 %), Iran (16 %) and Qatar… …   Wikipedia

  • Ministry of Petroleum and Natural Gas (India) — The Ministry of Petroleum and Natural Gas (MOP NG) is a ministry of the Government of India. It is responsible for the exploration, production, refining, distribution, marketing, import, export, and conservation of petroleum, natural gas,… …   Wikipedia

  • List of countries by natural gas exports — This is a list of countries by natural gas exports mostly based on The World Factbook [1]. For informational purposes several non sovereign entities are also included in this list. Rank Country/Region Natural gas exports (cu m) Date of… …   Wikipedia

  • Renewable fuels — Renewable fuels, such as biofuels (eg. Vegetable oil used as fuel, ethanol, or biodiesel) and hydrogen (when produced with renewable processes) are fuels produced from renewable resources. This is in contrast to non renewable fuels such as… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”