Techno-economic Evaluation of Flexible CCS Concepts in a CHP System

Lauri Kujanpää; Esa Pursiheimo

doi:10.1016/j.egypro.2017.03.1818

Techno-economic Evaluation of Flexible CCS Concepts in a CHP System

Lauri Kujanpää^*, Esa Pursiheimo

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

8 Citations (Scopus)

Abstract

In the framework of the Finnish national CCSP R&D program, the possible positive effects of enhanced CO₂ capture flexibility to a combined heat and power (CHP) system's net profitability was examined using optimization modelling, technology review and market scenario assessment. A system model was used to (i) compare economic performance of CO₂ capture against fuel switch options under high emission allowance prices and (ii) quantify added value of flexible CO₂ capture compared to conventional CO₂ capture in the case CHP system. The supply side of the studied CHP system consists of coal- (PC and IGCC) and gas-fired (NGCC) CHP plants, a multi-fuel CHP plant with a circulating fluidized bed (CFB) boiler and an oil-fired district heating plant. The cash flow of the system is maximized assuming the optimal use of flexible pre- post- and oxy-combustion as CO₂ capture concepts. Fuel-switch to bio-based renewable fuels is included as an alternative emission reduction technology. The market and fiscal environments reflect the current and anticipated situations in Finland. The flexible CO₂ capture concepts assumed for the CHP plants include: (i) solvent storage in post-combustion capture (in PC, CFB & NGCC plants); (ii) hydrogen-rich gas storage in pre-combustion capture (in IGCC plants); and (iii) liquid oxygen storage in pre-combustion capture (in IGCC plants) and in oxy-combustion (in PC and CFB plants).

Original language	English
Pages (from-to)	6638-6649
Journal	Energy Procedia
Volume	114
DOIs	https://doi.org/10.1016/j.egypro.2017.03.1818
Publication status	Published - 1 Jan 2017
MoE publication type	A1 Journal article-refereed

Funding

This work was carried out in the Carbon Capture and Storage Program (CCSP) research program coordinated by CLIC Innovation Oy with funding from Tekes - the Finnish Funding Agency for Innovation.

Keywords

CCS
CHP
flexibility

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.egypro.2017.03.1818Licence: CC BY-NC-ND

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abstract = "In the framework of the Finnish national CCSP R&D program, the possible positive effects of enhanced CO2 capture flexibility to a combined heat and power (CHP) system's net profitability was examined using optimization modelling, technology review and market scenario assessment. A system model was used to (i) compare economic performance of CO2 capture against fuel switch options under high emission allowance prices and (ii) quantify added value of flexible CO2 capture compared to conventional CO2 capture in the case CHP system. The supply side of the studied CHP system consists of coal- (PC and IGCC) and gas-fired (NGCC) CHP plants, a multi-fuel CHP plant with a circulating fluidized bed (CFB) boiler and an oil-fired district heating plant. The cash flow of the system is maximized assuming the optimal use of flexible pre- post- and oxy-combustion as CO2 capture concepts. Fuel-switch to bio-based renewable fuels is included as an alternative emission reduction technology. The market and fiscal environments reflect the current and anticipated situations in Finland. The flexible CO2 capture concepts assumed for the CHP plants include: (i) solvent storage in post-combustion capture (in PC, CFB & NGCC plants); (ii) hydrogen-rich gas storage in pre-combustion capture (in IGCC plants); and (iii) liquid oxygen storage in pre-combustion capture (in IGCC plants) and in oxy-combustion (in PC and CFB plants).",

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AB - In the framework of the Finnish national CCSP R&D program, the possible positive effects of enhanced CO2 capture flexibility to a combined heat and power (CHP) system's net profitability was examined using optimization modelling, technology review and market scenario assessment. A system model was used to (i) compare economic performance of CO2 capture against fuel switch options under high emission allowance prices and (ii) quantify added value of flexible CO2 capture compared to conventional CO2 capture in the case CHP system. The supply side of the studied CHP system consists of coal- (PC and IGCC) and gas-fired (NGCC) CHP plants, a multi-fuel CHP plant with a circulating fluidized bed (CFB) boiler and an oil-fired district heating plant. The cash flow of the system is maximized assuming the optimal use of flexible pre- post- and oxy-combustion as CO2 capture concepts. Fuel-switch to bio-based renewable fuels is included as an alternative emission reduction technology. The market and fiscal environments reflect the current and anticipated situations in Finland. The flexible CO2 capture concepts assumed for the CHP plants include: (i) solvent storage in post-combustion capture (in PC, CFB & NGCC plants); (ii) hydrogen-rich gas storage in pre-combustion capture (in IGCC plants); and (iii) liquid oxygen storage in pre-combustion capture (in IGCC plants) and in oxy-combustion (in PC and CFB plants).

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Techno-economic Evaluation of Flexible CCS Concepts in a CHP System

Abstract

Funding

Keywords

UN SDGs

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