Study of dry ice formation during blowdown of CO�-CH� from cryogenic distillation column

Cryogenic distillation columns are generally subjected to high-pressure loadings during the natural gas purification process. The high-pressure conditions inside the column cause safety risk e.g. rupture. When an emergency arises, blowdown is a typical way of minimizing the failure hazard. However,...

Full description

Main Authors: Shafiq, U., Shariff, A.M., Babar, M., Azeem, B., Ali, A., Bustam, A.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.23250 /
Published: Elsevier Ltd 2020
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85080061588&doi=10.1016%2fj.jlp.2020.104073&partnerID=40&md5=acc8ebc2411d9e997af31951e591099d
http://eprints.utp.edu.my/23250/
Tags: Add Tag
No Tags, Be the first to tag this record!
id utp-eprints.23250
recordtype eprints
spelling utp-eprints.232502021-08-19T07:27:10Z Study of dry ice formation during blowdown of CO�-CH� from cryogenic distillation column Shafiq, U. Shariff, A.M. Babar, M. Azeem, B. Ali, A. Bustam, A. Cryogenic distillation columns are generally subjected to high-pressure loadings during the natural gas purification process. The high-pressure conditions inside the column cause safety risk e.g. rupture. When an emergency arises, blowdown is a typical way of minimizing the failure hazard. However, blowdown at the cryogenic conditions involves dry ice formation due to the rapid decrease in temperature driven by the Joule-Thomson effect. The dry ice formation intensifies the failure hazard due to the orifice blockage. Therefore, optimization of blowdown parameters is necessary to avoid the dry ice formation. So far, very limited studies are available in the literature for the blowdown of CO�-CH� mixture, especially at the cryogenic conditions. In this study, a computational investigation followed by the experimental validation is accomplished to analyze the dry ice formation during blowdown of CO�-CH� binary mixture from the cryogenic distillation column. The composition of mixture, orifice size, and initial conditions inside vessel have a high impact on blowdown path. A 3.00 mm orifice is the most suitable size for the blowdown at cryogenic conditions as it doesn't promote solidification and discharges the inventory quickly. Based on the experimental observation, an empirical correlation is also developed to instantly find out the optimum blowdown parameters. © 2020 Elsevier Ltd Elsevier Ltd 2020 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85080061588&doi=10.1016%2fj.jlp.2020.104073&partnerID=40&md5=acc8ebc2411d9e997af31951e591099d Shafiq, U. and Shariff, A.M. and Babar, M. and Azeem, B. and Ali, A. and Bustam, A. (2020) Study of dry ice formation during blowdown of CO�-CH� from cryogenic distillation column. Journal of Loss Prevention in the Process Industries, 64 . http://eprints.utp.edu.my/23250/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Cryogenic distillation columns are generally subjected to high-pressure loadings during the natural gas purification process. The high-pressure conditions inside the column cause safety risk e.g. rupture. When an emergency arises, blowdown is a typical way of minimizing the failure hazard. However, blowdown at the cryogenic conditions involves dry ice formation due to the rapid decrease in temperature driven by the Joule-Thomson effect. The dry ice formation intensifies the failure hazard due to the orifice blockage. Therefore, optimization of blowdown parameters is necessary to avoid the dry ice formation. So far, very limited studies are available in the literature for the blowdown of CO�-CH� mixture, especially at the cryogenic conditions. In this study, a computational investigation followed by the experimental validation is accomplished to analyze the dry ice formation during blowdown of CO�-CH� binary mixture from the cryogenic distillation column. The composition of mixture, orifice size, and initial conditions inside vessel have a high impact on blowdown path. A 3.00 mm orifice is the most suitable size for the blowdown at cryogenic conditions as it doesn't promote solidification and discharges the inventory quickly. Based on the experimental observation, an empirical correlation is also developed to instantly find out the optimum blowdown parameters. © 2020 Elsevier Ltd
format Article
author Shafiq, U.
Shariff, A.M.
Babar, M.
Azeem, B.
Ali, A.
Bustam, A.
spellingShingle Shafiq, U.
Shariff, A.M.
Babar, M.
Azeem, B.
Ali, A.
Bustam, A.
Study of dry ice formation during blowdown of CO�-CH� from cryogenic distillation column
author_sort Shafiq, U.
title Study of dry ice formation during blowdown of CO�-CH� from cryogenic distillation column
title_short Study of dry ice formation during blowdown of CO�-CH� from cryogenic distillation column
title_full Study of dry ice formation during blowdown of CO�-CH� from cryogenic distillation column
title_fullStr Study of dry ice formation during blowdown of CO�-CH� from cryogenic distillation column
title_full_unstemmed Study of dry ice formation during blowdown of CO�-CH� from cryogenic distillation column
title_sort study of dry ice formation during blowdown of co�-ch� from cryogenic distillation column
publisher Elsevier Ltd
publishDate 2020
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85080061588&doi=10.1016%2fj.jlp.2020.104073&partnerID=40&md5=acc8ebc2411d9e997af31951e591099d
http://eprints.utp.edu.my/23250/
_version_ 1741196645685526528
score 11.62408

Similar Items