eprintid: 14040 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/40/40 datestamp: 2023-11-10 03:28:36 lastmod: 2023-11-10 03:28:36 status_changed: 2023-11-10 01:52:35 type: article metadata_visibility: show creators_name: Shafiq, U. creators_name: Shariff, A.M. creators_name: Babar, M. creators_name: Azeem, B. creators_name: Ali, A. creators_name: Bustam, A. title: Study of CO2 Solid Formation During Blowdown of Cryogenic CO2â��CH4 Distillation Process ispublished: pub keywords: Binary mixtures; Computer software; Cryogenics; Distillation; Distillation columns; Natural gas; Solidification; Temperature, Blow down; CH 4; Critical issues; Cryogenic distillations; Depressurizations; Distillation process; High pressure; Low-high; Lows-temperatures; Solids formation, Carbon dioxide note: cited By 0; Conference of 4th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2018 ; Conference Date: 14 November 2018 Through 15 November 2018; Conference Code:232589 abstract: Solidification of CO2 is one of the critical issues during blowdown in the cryogenic natural gas distillation process. Cryogenic distillation process for separation of CO2 from natural gas usually works at low temperature and high pressure that produces higher purity natural gas and CO2 in the vapor-liquid phase. However, in case there is an emergency, the mixture inside distillation column is passed through blowdown valve for sudden depressurization. This rapid depressurization would cause sudden expansion of CO2 mixture resulting in a dramatic drop in the fluid temperature that could solidify CO2 and cause pipe blockage. This solidification phenomenon is not fully understood that makes the solidification of CO2 during blowdown process difficult to control. Therefore, the research study presents investigations of the thermodynamic study for the depressurization of highly pressurized vessel containing CO2â��CH4 binary mixture from cryogenic conditions. Simulation is performed for 20 concentrations of CO2â��CH4 mixture over different orifice size e.g. 1.00 and 1.25 mm using BLOWDOWN software package in Aspen HYSYS® V 9.0. © 2020, Springer Nature Singapore Pte Ltd. date: 2020 publisher: Springer Science and Business Media Deutschland GmbH official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075737850&doi=10.1007%2f978-981-13-8297-0_4&partnerID=40&md5=903fb65d80d42072c5a7747916a9616d id_number: 10.1007/978-981-13-8297-0₄ full_text_status: none publication: Lecture Notes in Mechanical Engineering pagerange: 23-31 refereed: TRUE isbn: 9789811382963 issn: 21954356 citation: Shafiq, U. and Shariff, A.M. and Babar, M. and Azeem, B. and Ali, A. and Bustam, A. (2020) Study of CO2 Solid Formation During Blowdown of Cryogenic CO2â��CH4 Distillation Process. Lecture Notes in Mechanical Engineering. pp. 23-31. ISSN 21954356