Zheng, W;
Mahgerefteh, H;
Jamois, D;
Hebrard, J;
Proust, C;
(2017)
Modeling of Depressurization-Induced Superheating for Compressed Liquefied Gases.
Industrial & Engineering Chemistry Research
, 56
(18)
pp. 5432-5442.
10.1021/acs.iecr.7b00105.
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Abstract
During the rapid depressurization of a liquefied gas, its superheating can lead to a boiling liquid expanding vapor explosion (BLEVE). Such an event is of enormous concern during carbon capture and storage (CCS) given the significant amounts of pressurized CO₂ involved during its transportation and storage. This article presents, for the first time, the development and validation of a rigorous split-fluid blowdown model for predicting the degree of superheating following the rapid decompression of liquefied gases or two-phase mixtures with particular reference to CO₂. The model was successfully validated through a comparison of the predicted vapor- and liquid-phase pressures and temperatures against the recorded data from a number of depressurization tests conducted for pure dense-phase CO₂ and its mixtures representing those associated with different capture technologies. The effects of changes in the pressure-relief-valve diameter and CO₂ purity on the degree of superheating and, hence, the spontaneity of undergoing a BLEVE were investigated using the model.
| Type: | Article |
|---|---|
| Title: | Modeling of Depressurization-Induced Superheating for Compressed Liquefied Gases |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.iecr.7b00105 |
| Publisher version: | http://dx.doi.org/10.1021/acs.iecr.7b00105 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | CO₂, CCS, BLEVE, transportation safety, superheating, vessel blowdown |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10056715 |
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