Operational results of oxyfuel power plant (Callide Oxyfuel Project)

In 2013, CO2 levels surpassed 400 ppm for the first time in recorded history. So, we are facing global warming due to the increase levels of atmospheric carbon dioxide (CO2). As a method of reducing CO2 emissions from the thermal power plants, there are carbon dioxide capture and storage (CCS) techn...

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Autores principales:	Akihiro KOMAKI, Takahiro GOTO, Terutoshi UCHIDA, Toshihiko YAMADA, Takashi KIGA, Chris SPERO
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2016
Materias:	coal ccs oxyfuel oxyfiring co2 power plant oxy-combustion callide australia Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/684fdfccfa6a413591d3a9851d6af114
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spelling	oai:doaj.org-article:684fdfccfa6a413591d3a9851d6af1142021-11-26T06:58:33ZOperational results of oxyfuel power plant (Callide Oxyfuel Project)2187-974510.1299/mej.16-00342https://doaj.org/article/684fdfccfa6a413591d3a9851d6af1142016-10-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/6/3_16-00342/_pdf/-char/enhttps://doaj.org/toc/2187-9745In 2013, CO2 levels surpassed 400 ppm for the first time in recorded history. So, we are facing global warming due to the increase levels of atmospheric carbon dioxide (CO2). As a method of reducing CO2 emissions from the thermal power plants, there are carbon dioxide capture and storage (CCS) technologies. Oxyfuel combustion is one of the CO2 Capture technologies and IHI have developed it since 1989. Then, Callide Oxyfuel Project commenced to apply oxyfiring technology in an existing coal fired power plant and to demonstrate an oxyfuel power plant in March, 2008. Demonstration began in 2012 after existing boiler was retrofitted. During the demonstration for approximately three years, many tests were conducted and many data were collected for commercial use. As a result, we confirmed characteristics of oxyfiring such as total heat absorption, combustion characteristics, emissions of NOx, SOx, carbon-in-ash, operational flexibility from 15MWe (50%L) to 30MWe (100%L) and behavior of injected CO2 at the injection site. Total heat absorption of the boiler under oxyfiring was 2 to 3MW higher because of decreasing heat loss in flue gas and rising temperature of boiler feed water by a flue gas cooler. NO was decomposed in the furnace under oxyfiring because flue gas was recirculated. On the other hand, reaction between SO2 and absorbent such as Ca, Mg in ash was not so active regardless of high concentrated SO2 under oxyfiring. Carbon-in-ash was almost 40%~70% in oxyfirng compared with in airfiring because of longer residence time in the furnace. Operational flexibility is important to control oxyfiring operation and it was confirmed that oxyfiring can be operated as well as airfiring. In this paper, operational results are presented in Callide Oxyfuel Project.Akihiro KOMAKITakahiro GOTOTerutoshi UCHIDAToshihiko YAMADATakashi KIGAChris SPEROThe Japan Society of Mechanical Engineersarticlecoalccsoxyfueloxyfiringco2power plantoxy-combustioncallideaustraliaMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 6, Pp 16-00342-16-00342 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	coal ccs oxyfuel oxyfiring co2 power plant oxy-combustion callide australia Mechanical engineering and machinery TJ1-1570
spellingShingle	coal ccs oxyfuel oxyfiring co2 power plant oxy-combustion callide australia Mechanical engineering and machinery TJ1-1570 Akihiro KOMAKI Takahiro GOTO Terutoshi UCHIDA Toshihiko YAMADA Takashi KIGA Chris SPERO Operational results of oxyfuel power plant (Callide Oxyfuel Project)
description	In 2013, CO2 levels surpassed 400 ppm for the first time in recorded history. So, we are facing global warming due to the increase levels of atmospheric carbon dioxide (CO2). As a method of reducing CO2 emissions from the thermal power plants, there are carbon dioxide capture and storage (CCS) technologies. Oxyfuel combustion is one of the CO2 Capture technologies and IHI have developed it since 1989. Then, Callide Oxyfuel Project commenced to apply oxyfiring technology in an existing coal fired power plant and to demonstrate an oxyfuel power plant in March, 2008. Demonstration began in 2012 after existing boiler was retrofitted. During the demonstration for approximately three years, many tests were conducted and many data were collected for commercial use. As a result, we confirmed characteristics of oxyfiring such as total heat absorption, combustion characteristics, emissions of NOx, SOx, carbon-in-ash, operational flexibility from 15MWe (50%L) to 30MWe (100%L) and behavior of injected CO2 at the injection site. Total heat absorption of the boiler under oxyfiring was 2 to 3MW higher because of decreasing heat loss in flue gas and rising temperature of boiler feed water by a flue gas cooler. NO was decomposed in the furnace under oxyfiring because flue gas was recirculated. On the other hand, reaction between SO2 and absorbent such as Ca, Mg in ash was not so active regardless of high concentrated SO2 under oxyfiring. Carbon-in-ash was almost 40%~70% in oxyfirng compared with in airfiring because of longer residence time in the furnace. Operational flexibility is important to control oxyfiring operation and it was confirmed that oxyfiring can be operated as well as airfiring. In this paper, operational results are presented in Callide Oxyfuel Project.
format	article
author	Akihiro KOMAKI Takahiro GOTO Terutoshi UCHIDA Toshihiko YAMADA Takashi KIGA Chris SPERO
author_facet	Akihiro KOMAKI Takahiro GOTO Terutoshi UCHIDA Toshihiko YAMADA Takashi KIGA Chris SPERO
author_sort	Akihiro KOMAKI
title	Operational results of oxyfuel power plant (Callide Oxyfuel Project)
title_short	Operational results of oxyfuel power plant (Callide Oxyfuel Project)
title_full	Operational results of oxyfuel power plant (Callide Oxyfuel Project)
title_fullStr	Operational results of oxyfuel power plant (Callide Oxyfuel Project)
title_full_unstemmed	Operational results of oxyfuel power plant (Callide Oxyfuel Project)
title_sort	operational results of oxyfuel power plant (callide oxyfuel project)
publisher	The Japan Society of Mechanical Engineers
publishDate	2016
url	https://doaj.org/article/684fdfccfa6a413591d3a9851d6af114
work_keys_str_mv	AT akihirokomaki operationalresultsofoxyfuelpowerplantcallideoxyfuelproject AT takahirogoto operationalresultsofoxyfuelpowerplantcallideoxyfuelproject AT terutoshiuchida operationalresultsofoxyfuelpowerplantcallideoxyfuelproject AT toshihikoyamada operationalresultsofoxyfuelpowerplantcallideoxyfuelproject AT takashikiga operationalresultsofoxyfuelpowerplantcallideoxyfuelproject AT chrisspero operationalresultsofoxyfuelpowerplantcallideoxyfuelproject
_version_	1718409722074234880

Operational results of oxyfuel power plant (Callide Oxyfuel Project)

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