CO 2 Capture from IGCC by Low-Temperature Synthesis Gas Separation

David Berstad, Geir Skaugen, Simon Roussanaly, Rahul Anantharaman, Petter Nekså, Kristin Jordal, Stian Trædal and Truls Gundersen
Additional contact information
David Berstad: SINTEF Energy Research, NO-7034 Trondheim, Norway
Geir Skaugen: SINTEF Energy Research, NO-7034 Trondheim, Norway
Simon Roussanaly: SINTEF Energy Research, NO-7034 Trondheim, Norway
Rahul Anantharaman: SINTEF Energy Research, NO-7034 Trondheim, Norway
Petter Nekså: SINTEF Energy Research, NO-7034 Trondheim, Norway
Kristin Jordal: SINTEF Energy Research, NO-7034 Trondheim, Norway
Stian Trædal: SINTEF Energy Research, NO-7034 Trondheim, Norway
Truls Gundersen: Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway

Energies, 2022, vol. 15, issue 2, 1-24

Abstract: Capture conditions for CO 2 vary substantially between industrial point sources. Depending on CO 2 fraction and pressure level, different capture technologies will be required for cost- and energy-efficient decarbonisation. For decarbonisation of shifted synthesis gas from coal gasification, several studies have identified low-temperature CO 2 capture by condensation and phase separation as an energy- and cost-efficient option. In the present work, a process design is proposed for low-temperature CO 2 capture from an Integrated Gasification Combined Cycle (IGCC) power plant. Steady-state simulations were carried out and the performance of the overall process, as well as major process components, were investigated. For the baseline capture unit layout, delivering high-pressure CO 2 at 150 bar, the net specific power requirement was estimated to 273 kJ e /kg CO2 , and an 85% CO 2 capture ratio was obtained. The impact of 12 different process parameters was studied in a sensitivity analysis, the results of which show that compressor and expander efficiencies, as well as synthesis gas separation temperature, have the highest impact on power requirements. Modifying the process to producing cold liquid CO 2 for ship transport resulted in 16% increase in net power requirements and is well suited for capturing CO 2 for ship transport.

Keywords: CCS; CO 2 capture; IGCC; precombustion; low-temperature; cryogenic (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/2/515/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/2/515/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:2:p:515-:d:722631

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().