Development of chemical looping combustion technology for bio-CCS application

Teir Sebastian, Toni Pikkarainen, Eemeli Tsupari, Ikka Hiltunen, Janne Karki, Antti Arasto

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsProfessional

Abstract

Carbon capture and storage (CCS) is acknowledged as an important technology in cost-efficiently achieving the required greenhouse gas emission reductions this century. Combining biomass combustion with CCS (Bio-CCS; BECCS) offers the possibility of "negative" CO2 emissions. In the latest IPCC assessment, bio-CCS was found to have an important role to play in climate change mitigation. Many scenario models were not able to achieve the necessary reduction in greenhouse gas concentration in the atmosphere to 450 ppm CO2eq by 2100 if key technologies, such as bioenergy, CCS, and their combination were limitedly available (IPCC, 2014). Chemical looping combustion (CLC) is a new technology being developed that could be promising both for biomass combustion and as a bio-CCS application. In chemical looping combustion, the fuel is oxidized in two separate reactors with solid metal oxide particles, called "oxygen carriers", transporting the oxygen between the two reactors. In the air reactor, the metal oxide particles react with the oxygen in air, after which the particles are transported to the fuel reactor, where they react with the fuel. It is expected that high-temperature corrosion problems can be significantly reduced in a bio-CLC reactor as compared to a conventional biomass furnace. This is because heat will be extracted mainly in the exothermic air reactor, in which there will be no alkali compounds present and very little fly ash. This should in turn allow the use of higher steam parameters in comparison to conventional biomass combustion, which would improve the power generation efficiency. In order to test and verify the benefits of bio-CLC, a new dual fluidized bed (DFB) test rig applicable for biomass was converted into a 10-50 kWth scale bio-CLC test rig. The test rig is located at VTT's new piloting centre Bioruukki in Finland and consists of a circulating fluidized bed (CFB) air reactor interconnected with a bubbling fluidized bed (BFB) fuel reactor. A set of tests is currently being carried out using ilmenite as oxygen carrier and wood pellets as fuel. The main objectives are to study and optimize operation and process parameters for CLC using biomass-based fuels with both high and low volatile contents. In addition, deposit formation and corrosion will be evaluated in order to evaluate the possibility for improving power generation efficiency by using enhanced steam parameters. The research is carried out in the framework of two research projects: the Carbon Capture and Storage R&D Program (CCSP) with financial support from Tekes - the Finnish Funding Agency for Innovation, and Nordic Energy Research's flagship project "Negative CO2 Emissions with Chemical Looping Combustion of Biomass".
Original languageEnglish
Title of host publicationCO2 Summit II
Subtitle of host publicationTechnologies and Oppertunities
EditorsHolly Krutka, Frank Zu
Publication statusPublished - 2016
MoE publication typeNot Eligible
EventCO2 Summit II: Technologies and Opportunities, - Santa Ana Pueblo, United States
Duration: 10 Apr 201614 Apr 2016

Conference

ConferenceCO2 Summit II: Technologies and Opportunities,
CountryUnited States
CitySanta Ana Pueblo
Period10/04/1614/04/16

Fingerprint

Carbon capture
Biomass
Fluidized beds
Oxygen
Air
Greenhouse gases
Power generation
Steam
Ore pellets
Corrosion
Ilmenite
Oxides
Metals
Gas emissions
Fly ash
Climate change
Wood
Furnaces
Deposits
Innovation

Keywords

  • Bio-CCS
  • CLC
  • chemical looping combustion

Cite this

Sebastian, T., Pikkarainen, T., Tsupari, E., Hiltunen, I., Karki, J., & Arasto, A. (2016). Development of chemical looping combustion technology for bio-CCS application. In H. Krutka, & F. Zu (Eds.), CO2 Summit II: Technologies and Oppertunities
Sebastian, Teir ; Pikkarainen, Toni ; Tsupari, Eemeli ; Hiltunen, Ikka ; Karki, Janne ; Arasto, Antti. / Development of chemical looping combustion technology for bio-CCS application. CO2 Summit II: Technologies and Oppertunities. editor / Holly Krutka ; Frank Zu. 2016.
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Sebastian, T, Pikkarainen, T, Tsupari, E, Hiltunen, I, Karki, J & Arasto, A 2016, Development of chemical looping combustion technology for bio-CCS application. in H Krutka & F Zu (eds), CO2 Summit II: Technologies and Oppertunities. CO2 Summit II: Technologies and Opportunities, , Santa Ana Pueblo, United States, 10/04/16.

Development of chemical looping combustion technology for bio-CCS application. / Sebastian, Teir; Pikkarainen, Toni; Tsupari, Eemeli; Hiltunen, Ikka; Karki, Janne; Arasto, Antti.

CO2 Summit II: Technologies and Oppertunities. ed. / Holly Krutka; Frank Zu. 2016.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsProfessional

TY - CHAP

T1 - Development of chemical looping combustion technology for bio-CCS application

AU - Sebastian, Teir

AU - Pikkarainen, Toni

AU - Tsupari, Eemeli

AU - Hiltunen, Ikka

AU - Karki, Janne

AU - Arasto, Antti

PY - 2016

Y1 - 2016

N2 - Carbon capture and storage (CCS) is acknowledged as an important technology in cost-efficiently achieving the required greenhouse gas emission reductions this century. Combining biomass combustion with CCS (Bio-CCS; BECCS) offers the possibility of "negative" CO2 emissions. In the latest IPCC assessment, bio-CCS was found to have an important role to play in climate change mitigation. Many scenario models were not able to achieve the necessary reduction in greenhouse gas concentration in the atmosphere to 450 ppm CO2eq by 2100 if key technologies, such as bioenergy, CCS, and their combination were limitedly available (IPCC, 2014). Chemical looping combustion (CLC) is a new technology being developed that could be promising both for biomass combustion and as a bio-CCS application. In chemical looping combustion, the fuel is oxidized in two separate reactors with solid metal oxide particles, called "oxygen carriers", transporting the oxygen between the two reactors. In the air reactor, the metal oxide particles react with the oxygen in air, after which the particles are transported to the fuel reactor, where they react with the fuel. It is expected that high-temperature corrosion problems can be significantly reduced in a bio-CLC reactor as compared to a conventional biomass furnace. This is because heat will be extracted mainly in the exothermic air reactor, in which there will be no alkali compounds present and very little fly ash. This should in turn allow the use of higher steam parameters in comparison to conventional biomass combustion, which would improve the power generation efficiency. In order to test and verify the benefits of bio-CLC, a new dual fluidized bed (DFB) test rig applicable for biomass was converted into a 10-50 kWth scale bio-CLC test rig. The test rig is located at VTT's new piloting centre Bioruukki in Finland and consists of a circulating fluidized bed (CFB) air reactor interconnected with a bubbling fluidized bed (BFB) fuel reactor. A set of tests is currently being carried out using ilmenite as oxygen carrier and wood pellets as fuel. The main objectives are to study and optimize operation and process parameters for CLC using biomass-based fuels with both high and low volatile contents. In addition, deposit formation and corrosion will be evaluated in order to evaluate the possibility for improving power generation efficiency by using enhanced steam parameters. The research is carried out in the framework of two research projects: the Carbon Capture and Storage R&D Program (CCSP) with financial support from Tekes - the Finnish Funding Agency for Innovation, and Nordic Energy Research's flagship project "Negative CO2 Emissions with Chemical Looping Combustion of Biomass".

AB - Carbon capture and storage (CCS) is acknowledged as an important technology in cost-efficiently achieving the required greenhouse gas emission reductions this century. Combining biomass combustion with CCS (Bio-CCS; BECCS) offers the possibility of "negative" CO2 emissions. In the latest IPCC assessment, bio-CCS was found to have an important role to play in climate change mitigation. Many scenario models were not able to achieve the necessary reduction in greenhouse gas concentration in the atmosphere to 450 ppm CO2eq by 2100 if key technologies, such as bioenergy, CCS, and their combination were limitedly available (IPCC, 2014). Chemical looping combustion (CLC) is a new technology being developed that could be promising both for biomass combustion and as a bio-CCS application. In chemical looping combustion, the fuel is oxidized in two separate reactors with solid metal oxide particles, called "oxygen carriers", transporting the oxygen between the two reactors. In the air reactor, the metal oxide particles react with the oxygen in air, after which the particles are transported to the fuel reactor, where they react with the fuel. It is expected that high-temperature corrosion problems can be significantly reduced in a bio-CLC reactor as compared to a conventional biomass furnace. This is because heat will be extracted mainly in the exothermic air reactor, in which there will be no alkali compounds present and very little fly ash. This should in turn allow the use of higher steam parameters in comparison to conventional biomass combustion, which would improve the power generation efficiency. In order to test and verify the benefits of bio-CLC, a new dual fluidized bed (DFB) test rig applicable for biomass was converted into a 10-50 kWth scale bio-CLC test rig. The test rig is located at VTT's new piloting centre Bioruukki in Finland and consists of a circulating fluidized bed (CFB) air reactor interconnected with a bubbling fluidized bed (BFB) fuel reactor. A set of tests is currently being carried out using ilmenite as oxygen carrier and wood pellets as fuel. The main objectives are to study and optimize operation and process parameters for CLC using biomass-based fuels with both high and low volatile contents. In addition, deposit formation and corrosion will be evaluated in order to evaluate the possibility for improving power generation efficiency by using enhanced steam parameters. The research is carried out in the framework of two research projects: the Carbon Capture and Storage R&D Program (CCSP) with financial support from Tekes - the Finnish Funding Agency for Innovation, and Nordic Energy Research's flagship project "Negative CO2 Emissions with Chemical Looping Combustion of Biomass".

KW - Bio-CCS

KW - CLC

KW - chemical looping combustion

M3 - Conference abstract in proceedings

BT - CO2 Summit II

A2 - Krutka, Holly

A2 - Zu, Frank

ER -

Sebastian T, Pikkarainen T, Tsupari E, Hiltunen I, Karki J, Arasto A. Development of chemical looping combustion technology for bio-CCS application. In Krutka H, Zu F, editors, CO2 Summit II: Technologies and Oppertunities. 2016