Achieving negative emissions with the most promising business case for bio-CCS in power and CHP production

Janne Kärki (Corresponding Author), Eemeli Tsupari, Tomi Thomasson, Antti Arasto, Toni Pikkarainen, Matti Tähtinen, Risto Sormunen, Timo Korpinen

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

Abstract

The urgency for significant reductions in global greenhouse gas (GHG) emissions highlights the importance of carbon sinks, i.e. solutions that can remove CO2 from the atmosphere, and the possibility for offsetting historical emissions. The later the global GHG emissions turn to decline, the greater is the need for sinks or so called "negative emissions". Achieving negative CO2 emissions is possible by applying carbon capture in processes using biomass as feedstock (bio-CCS). Electricity production efficiency of chemical looping combustion (CLC) power plant is higher than in power plants based on solid fuel and other CO2 capture technologies. The higher efficiency of CLC in comparison to other CCS technologies emphasizes the cost benefit of bio-CLC in terms of both, merit order and overall economic feasibility. The advantage of combined heat and power production (CHP) over the sole power production has been recognised also in the case of CCS applications. By CHP, process efficiencies over 90% (on LHV basis) are possible and efficiency penalties of the CCS processes can be minimised as decreased efficiency in power production can be compensated by additional heat production. In this paper, the most feasible concept for bio-CCS in power and CHP production is presented based on improved efficiency, negative emissions and benefits of CHP within Nordic bioenergy context. Techno-economic analyses of industrial scale CLC power plant and CHP plant are presented in different market situations. Feasibility of CLC investment and the utilization of such plants are investigated and compared to oxy-fuel and air combustion references in a fictive energy system. In general, the smaller scale is often limiting biomass applications, CLC, CHP and utilisation of CO2. In the presented bio-CLC concept, all of these advantages are combined in a scale which is realistic for commercial application.
Original languageEnglish
Pages (from-to)5994-6002
Number of pages9
JournalEnergy Procedia
Volume114
DOIs
Publication statusPublished - 1 Jan 2017
MoE publication typeA4 Article in a conference publication
Event13th International Conference on Greenhouse Gas Control Technologies, GHGT-13 - Lausanne, Switzerland
Duration: 14 Nov 201618 Nov 2016

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Industry
Gas emissions
Greenhouse gases
Power plants
Biomass
Hot Temperature
Cogeneration plants
Carbon capture
Economics
Feedstocks
Electricity
Carbon
Air
Costs

Keywords

  • CLC
  • concept evaluation
  • CHP
  • bio-CCS
  • cost

Cite this

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title = "Achieving negative emissions with the most promising business case for bio-CCS in power and CHP production",
abstract = "The urgency for significant reductions in global greenhouse gas (GHG) emissions highlights the importance of carbon sinks, i.e. solutions that can remove CO2 from the atmosphere, and the possibility for offsetting historical emissions. The later the global GHG emissions turn to decline, the greater is the need for sinks or so called {"}negative emissions{"}. Achieving negative CO2 emissions is possible by applying carbon capture in processes using biomass as feedstock (bio-CCS). Electricity production efficiency of chemical looping combustion (CLC) power plant is higher than in power plants based on solid fuel and other CO2 capture technologies. The higher efficiency of CLC in comparison to other CCS technologies emphasizes the cost benefit of bio-CLC in terms of both, merit order and overall economic feasibility. The advantage of combined heat and power production (CHP) over the sole power production has been recognised also in the case of CCS applications. By CHP, process efficiencies over 90{\%} (on LHV basis) are possible and efficiency penalties of the CCS processes can be minimised as decreased efficiency in power production can be compensated by additional heat production. In this paper, the most feasible concept for bio-CCS in power and CHP production is presented based on improved efficiency, negative emissions and benefits of CHP within Nordic bioenergy context. Techno-economic analyses of industrial scale CLC power plant and CHP plant are presented in different market situations. Feasibility of CLC investment and the utilization of such plants are investigated and compared to oxy-fuel and air combustion references in a fictive energy system. In general, the smaller scale is often limiting biomass applications, CLC, CHP and utilisation of CO2. In the presented bio-CLC concept, all of these advantages are combined in a scale which is realistic for commercial application.",
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Achieving negative emissions with the most promising business case for bio-CCS in power and CHP production. / Kärki, Janne (Corresponding Author); Tsupari, Eemeli; Thomasson, Tomi; Arasto, Antti; Pikkarainen, Toni; Tähtinen, Matti; Sormunen, Risto; Korpinen, Timo.

In: Energy Procedia, Vol. 114, 01.01.2017, p. 5994-6002.

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

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AU - Thomasson, Tomi

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AU - Pikkarainen, Toni

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AU - Korpinen, Timo

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