Techno-economic investigation of a chemical looping combustion based power plant

Rosario Porrazzo, Graeme White, Raffaella Ocone

Research output: Contribution to journalReview article

Abstract

Among the well-known state-of-the-art technologies for CO2 capture, Chemical Looping Combustion (CLC) stands out for its potential to capture CO2 efficiently from a fuel power plant. CLC involves the combustion of carbonaceous fuel such as coal-derived syngas or natural gas via a redox chemical reaction with a solid oxygen carrier circulating between two fluidised beds. Avoided NOx emissions, high CO2 capture and thermal efficiency are the key concepts that make worth the investigation of this technology. One of the main issues about CLC might concern the impact of the solid metal oxides price and lifetime on the Levelised Cost Of the Electricity (LCOE). A natural gas fired power plant embedding a CLC unit is presented in this work. Detailed fluidised bed models are implemented in Aspen Plus software. Kinetics and hydrodynamics are taken into account to evaluate their effect on the total solid inventory required for full fuel conversion. The models are incorporated into a power plant and a detailed economic evaluation is undertaken by varying two relevant parameters: fuel price and lifetime of the solid particles. The effect of these parameters on the LCOE is investigated and a comparison between CLC and a post-combustion technology employing amines (e.g. monoethanolamine, MEA) is presented. It is shown that the CLC power plant under study leads to a lower LCOE compared to the current MEA post-combustion solution.

Original languageEnglish
Pages (from-to)437-457
Number of pages21
JournalFaraday Discussions
Volume192
Early online date26 Apr 2016
DOIs
Publication statusPublished - 1 Oct 2016

Fingerprint

Power Plants
power plants
Electricity
economics
Power plants
Economics
Natural Gas
Ethanolamine
Technology
Costs and Cost Analysis
electricity
monoethanolamine (MEA)
Coal
Hydrodynamics
natural gas
Oxides
Oxidation-Reduction
Cost-Benefit Analysis
Amines
Software

ASJC Scopus subject areas

  • Medicine(all)
  • Physical and Theoretical Chemistry

Cite this

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abstract = "Among the well-known state-of-the-art technologies for CO2 capture, Chemical Looping Combustion (CLC) stands out for its potential to capture CO2 efficiently from a fuel power plant. CLC involves the combustion of carbonaceous fuel such as coal-derived syngas or natural gas via a redox chemical reaction with a solid oxygen carrier circulating between two fluidised beds. Avoided NOx emissions, high CO2 capture and thermal efficiency are the key concepts that make worth the investigation of this technology. One of the main issues about CLC might concern the impact of the solid metal oxides price and lifetime on the Levelised Cost Of the Electricity (LCOE). A natural gas fired power plant embedding a CLC unit is presented in this work. Detailed fluidised bed models are implemented in Aspen Plus software. Kinetics and hydrodynamics are taken into account to evaluate their effect on the total solid inventory required for full fuel conversion. The models are incorporated into a power plant and a detailed economic evaluation is undertaken by varying two relevant parameters: fuel price and lifetime of the solid particles. The effect of these parameters on the LCOE is investigated and a comparison between CLC and a post-combustion technology employing amines (e.g. monoethanolamine, MEA) is presented. It is shown that the CLC power plant under study leads to a lower LCOE compared to the current MEA post-combustion solution.",
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Techno-economic investigation of a chemical looping combustion based power plant. / Porrazzo, Rosario; White, Graeme; Ocone, Raffaella.

In: Faraday Discussions, Vol. 192, 01.10.2016, p. 437-457.

Research output: Contribution to journalReview article

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