Partial capture from refineries through utilization of existing site energy systems

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Partial capture from refineries through utilization of existing site energy systems

Biermann, Max, 1989 (author): Chalmers tekniska högskola,Chalmers University of Technology

Langner, Christian, 1990 (author): Chalmers tekniska högskola,Chalmers University of Technology

Eliasson, Åsa, 1993 (author): Chalmers tekniska högskola,Chalmers University of Technology

Normann, Fredrik, 1982 (author): Chalmers tekniska högskola,Chalmers University of Technology

Harvey, Simon, 1965 (author): Chalmers tekniska högskola,Chalmers University of Technology

Johnsson, Filip, 1960 (author): Chalmers tekniska högskola,Chalmers University of Technology

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(creator_code:org_t)

Elsevier BV, 2021
2021
English.
In: 15th Greenhouse Gas Control Technologies Conference 2021, GHGT 2021. - : Elsevier BV.

Related links:: https://dx.doi.org/1...; show more...; https://research.cha...; https://doi.org/10.2...; show less...

Conference paper (peer-reviewed)

Abstract Subject headings

Many studies indicate that carbon capture and storage operations need to be ramped up in the coming decades to limit global warming to well-below 2°C. Partial CO2 capture from carbon-intensive industrial processes is a promising starting point for initial CO2 transport and storage infrastructure projects, such as the Norwegian full-chain CCS project “Northern Lights”, since specific capture cost (€/t CO2) for single-stack capture can be kept low compared to full capture from all, often less suitable stacks. This work highlights the importance of utilizing existing site energy systems to avoid significant increase in marginal abatement cost when moving from partial to full capture. A systematic and comprehensive techno-economic approach is applied that identifies a mix of heat supply sources with minimum cost based on a detailed analysis of available heat and capacity within the existing site energy system. Time-dependent variations are considered via multi-period, linear optimization. For single-stack capture from the hydrogen production unit (~0.5 Mt CO2 p.a.) of a Swedish refinery in the context of the current energy system, we find avoidance cost for the capture plant (liquefaction, ship transport, and storage excluded)of 42 €/t CO2-avoided that is predominantly driven by steam raised from available process heat in existing coolers (~6 €/t steam). For full capture from all major stacks (~1.4 Mt CO2 p.a.), the avoidance cost becomes twice as high (86 €/t CO2-avoided) due to heat supply from available heat and existing boiler capacity (combustion of natural gas) at costs of ~20€/t steam. The analysis shows that very few investments in new steam capacity are required, and thus, that the utilization of existing site energy systems is important for lowering capture cost significantly, and thus the whole-chain cost for early CCS projects.

Subject headings

TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Annan naturresursteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Other Environmental Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Energisystem (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Energy Systems (hsv//eng)

Keyword

heat integration
partial capture
MEA.
multiperiod optimization
refinery
marginal abatement cost
Northern Lights

Publication and Content Type

kon (subject category)
ref (subject category)

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Energy Engineeri ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Environmental En ...; and Other Environmen ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Environmental En ...; and Energy Systems

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