Controlling evaporation of liquid CO2 during transport as part of CCS

Cornelis A P Zevenhoven*, Johan Fagerlund

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review

Abstract

In Europe, deployment of large-scale carbon capture and storage (CCS) with storage in an underground geological formation will in practice imply off-shore storage. This implies separation, purification and liquefaction of CO2 and, after transport to a harbour facility, loading into a ship for transport to the storage site, a trip that may take several days. The topic of this paper is how to address the evaporation of some of the liquefied CO2 caused by heat leaking into the storage, resulting in rising pressure and temperature that should
be controlled. First, this paper will assess the dependence of liquefied CO2 evaporation with time (boil-off rate,
BOR) on starting (low, medium or high) pressures/temperatures and heat ingress, and the rate of pressure and temperature increase as a result of it. Secondly, it will suggest alternatives to re-liquefaction during the
transport. The latter could involve, for example, the use of zeolite or other sorbent, or adding small amounts of a component with slightly different thermodynamic properties to the CO2. As the first part of the paper shows,
based on the behaviour of pure CO2 there may not be a need for worries or action since the pressure rise is
very modest even after several days. The work also shows that small amounts of impurities may have
significant effects, emphasising the importance of pre-transport processing.
Original languageEnglish
Title of host publicationProceedings of 33rd INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS
Place of PublicationOsaka, Japan
PublisherECOS2020 Local organising committee, Japan
Pages1938-1946
Number of pages9
ISBN (Print)9781713814061
Publication statusPublished - 2020
MoE publication typeA4 Article in a conference publication
Event33rd INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS - Osaka, Japan
Duration: 29 Jun 20203 Dec 2020
https://ecos2020.org/

Publication series

NameProceedings of ECOS INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS
PublisherECOS local organizing committee
Volume33

Conference

Conference33rd INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS
Abbreviated titleECOS2020
CountryJapan
CityOsaka
Period29/06/2003/12/20
Internet address

Keywords

  • Carbon dioxide capture and storage (CCS)
  • Evaporation
  • Liquefied CO
  • Refrigeration
  • Transport

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