Integrated gasification combined cycle: Difference between revisions
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[[File:igcc.jpg|300px|thumb|Figure 1. An IGCC plant in Spain.<ref>Wikimedia Commons [Online], Available: https://ca.wikipedia.org/wiki/Fitxer:Central_GICC_de_Elcogas.jpg</ref>]] | [[File:igcc.jpg|300px|thumb|Figure 1. An IGCC plant in Spain.<ref>Wikimedia Commons [Online], Available: https://ca.wikipedia.org/wiki/Fitxer:Central_GICC_de_Elcogas.jpg</ref>]] | ||
<onlyinclude>'''Integrated gasification combined cycle''' ('''IGCC''') | <onlyinclude>'''Integrated gasification combined cycle''' ('''IGCC''') generates [[electricity]] from [[coal]], [[petroleum]] or [[biomass]] while reducing the amount of [[Air pollution|air pollutants]] released. The cycle combines [[combined cycle gas plant|combined-cycle generation]] with gasification to maximize the [[efficiency]] of the [[fuel]], while [[carbon capture and storage]] can be incorporated to reduce [[carbon dioxide]] emissions.</onlyinclude><ref name=sie>Siemens. (Accessed May 21, 2016). ''Integrated Gasification Combined Cycle'' [Online], Available: http://www.energy.siemens.com/mx/en/fossil-power-generation/power-plants/integrated-gasification-combined-cycle/integrated-gasification-combined-cycle.htm#content=Description</ref> | ||
==How it works== | ==How it works== | ||
First, the fuel is turned into a [[synthesis gas]] (also known as syngas) within a gasification chamber. This process also creates [[steam]]. The hot syngas is then sent through a cleaning chamber, which removes a large portion of [[sulfur]], [[mercury (pollutant)|mercury]] and [[particulate matter]]. | First, the fuel is turned into a [[synthesis gas]] (also known as syngas) within a gasification chamber. This process also creates [[steam]]. The hot syngas is then sent through a cleaning chamber, which removes a large portion of [[sulfur]], [[mercury (pollutant)|mercury]] and [[particulate matter]]. If carbon capture is incorporated, carbon dioxide can also be removed and stored underground or elsewhere.<ref name=duke>Duke Energy. (Accessed May 21, 2016). ''How IGCC Works'' [Online], Available: https://www.duke-energy.com/about-us/how-igcc-works.asp</ref> | ||
The cleaned fuel is then sent to a [[gas turbine]] and [[generator]] to produce electricity. The excess [[heat]] from the [[exhaust gas]]es is | The cleaned fuel is then sent to a [[gas turbine]] and [[generator]] to produce electricity. The excess [[heat]] from the [[exhaust gas]]es is used to create more steam, which is added to the initial batch of steam and sent to a steam turbine to generate electricity as well.<ref name=duke/> | ||
==Flexibility== | ==Flexibility== | ||
===of Fuel=== | ===of Fuel=== | ||
An IGCC plant can handle various types of fuel, including [[coal]], [[waste]], [[coke]], [[petroleum]], [[biomass]], or a mix of these. It can also burn [[natural gas]] in the turbine as a secondary fuel while the primary fuel components are under maintenance.<Ref name=sie/> | |||
===of Product=== | ===of Product=== | ||
Aside from only generating electricity, the plant can also divert the [[waste heat]] from its processes to provide [[district heating]] | Aside from only generating electricity, the plant can also divert the [[waste heat]] from its processes to provide [[district heating]] through[[cogeneration]]. | ||
Plants may also be optimized to produce other useful products such as [[synthetic natural gas]], [[hydrogen]], and other chemicals. | |||
Moreover, if carbon capture is incorporated, the captured carbon dioxide from the cleaning stage can be used elsewhere.<ref name=sie/> | |||
A short video from the Tennessee Valley Authority<ref>Taken from 'http://www.tva.gov/power/comb_cycle_video.htm', accessed June 12th, 2015. This video is used under creative commons license found here: https://en.wikipedia.org/wiki/File:Combined_cycle_animation.ogv (accessed June 12th, 2015 as well).</ref> shows the general process below: | |||
<html> | |||
<iframe src="//commons.wikimedia.org/wiki/File:Combined_cycle_animation.ogv?embedplayer=yes" width="813" height="480" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe> | |||
</html> | |||
==For Further Reading== | |||
*[[Simple cycle gas plant]] | |||
*[[Gas turbine]] | |||
*[[Cogeneration]] | |||
*[[Steam]] | |||
*[[Heat exchanger]] | |||
*Or explore a [[Special:Random|random page]] | |||
==References== | ==References== | ||
{{reflist}} | {{reflist}} | ||
[[Category:Uploaded]] | |||
Latest revision as of 20:43, 4 August 2026
Figure 1. An IGCC plant in Spain.[1]
Integrated gasification combined cycle (IGCC) generates electricity from coal, petroleum or biomass while reducing the amount of air pollutants released. The cycle combines combined-cycle generation with gasification to maximize the efficiency of the fuel, while carbon capture and storage can be incorporated to reduce carbon dioxide emissions.[2]
How it works
First, the fuel is turned into a synthesis gas (also known as syngas) within a gasification chamber. This process also creates steam. The hot syngas is then sent through a cleaning chamber, which removes a large portion of sulfur, mercury and particulate matter. If carbon capture is incorporated, carbon dioxide can also be removed and stored underground or elsewhere.[3]
The cleaned fuel is then sent to a gas turbine and generator to produce electricity. The excess heat from the exhaust gases is used to create more steam, which is added to the initial batch of steam and sent to a steam turbine to generate electricity as well.[3]
Flexibility
of Fuel
An IGCC plant can handle various types of fuel, including coal, waste, coke, petroleum, biomass, or a mix of these. It can also burn natural gas in the turbine as a secondary fuel while the primary fuel components are under maintenance.[2]
of Product
Aside from only generating electricity, the plant can also divert the waste heat from its processes to provide district heating throughcogeneration.
Plants may also be optimized to produce other useful products such as synthetic natural gas, hydrogen, and other chemicals.
Moreover, if carbon capture is incorporated, the captured carbon dioxide from the cleaning stage can be used elsewhere.[2]
A short video from the Tennessee Valley Authority[4] shows the general process below:
For Further Reading
References
- ↑ Wikimedia Commons [Online], Available: https://ca.wikipedia.org/wiki/Fitxer:Central_GICC_de_Elcogas.jpg
- ↑ 2.0 2.1 2.2 Siemens. (Accessed May 21, 2016). Integrated Gasification Combined Cycle [Online], Available: http://www.energy.siemens.com/mx/en/fossil-power-generation/power-plants/integrated-gasification-combined-cycle/integrated-gasification-combined-cycle.htm#content=Description
- ↑ 3.0 3.1 Duke Energy. (Accessed May 21, 2016). How IGCC Works [Online], Available: https://www.duke-energy.com/about-us/how-igcc-works.asp
- ↑ Taken from 'http://www.tva.gov/power/comb_cycle_video.htm', accessed June 12th, 2015. This video is used under creative commons license found here: https://en.wikipedia.org/wiki/File:Combined_cycle_animation.ogv (accessed June 12th, 2015 as well).
