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Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant

A risk analysis simulation was completed for a cryogenic distillation (Cryo-D) pilot operation processing a natural gas feed stream containing H2S. This study placed significant H2S concentration inside the Cryo-D and evaluated its dispersion after a simulated leak within the pilot plant. Sensitivit...

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Main Authors: Mohd Shukor, Mohd Syazwan, Omar, Rozita, Abdul Hamid, Mohamad Rezi, Harun, Mohd Razif, Md Said, Mohamad Syazarudin
Format: Article
Published: John Wiley and Sons Inc 2024
Online Access:http://psasir.upm.edu.my/id/eprint/112842/
https://aiche.onlinelibrary.wiley.com/doi/10.1002/prs.12597
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spelling my.upm.eprints.1128422024-11-06T04:10:42Z http://psasir.upm.edu.my/id/eprint/112842/ Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant Mohd Shukor, Mohd Syazwan Omar, Rozita Abdul Hamid, Mohamad Rezi Harun, Mohd Razif Md Said, Mohamad Syazarudin A risk analysis simulation was completed for a cryogenic distillation (Cryo-D) pilot operation processing a natural gas feed stream containing H2S. This study placed significant H2S concentration inside the Cryo-D and evaluated its dispersion after a simulated leak within the pilot plant. Sensitivity analysis using an in-house process simulation identified the operating conditions that caused the highest surroundings H2S concentration. A computational fluid dynamic (CFD) dispersion simulation assessed H2S leakage at the bottom column section and its effects on operators. A case with 60 bar column pressure, −30°C inlet temperature and 10% H2S input gas had the highest mass flow rate of 4.74 kg/h H2S through a leak. Leaked H2S covers 50% of the building within 60 s. Within 120 s, H2S accumulates toward the column bottom. At 120 s, most operators are exposed to above 1000 ppm H2S, which may cause fatalities instantly. Recommendations include enhancing the ventilation of the building by installing ventilation near the base of the cryogenic column in order to lessen the exposure concentration. In conclusion, H2S leakage from an indoor Cryo-D pilot plant can cause catastrophic consequences due to its rapid dispersion and accumulation throughout the building. © 2024 American Institute of Chemical Engineers. John Wiley and Sons Inc 2024 Article PeerReviewed Mohd Shukor, Mohd Syazwan and Omar, Rozita and Abdul Hamid, Mohamad Rezi and Harun, Mohd Razif and Md Said, Mohamad Syazarudin (2024) Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant. Process Safety Progress, 43 (S1). ISSN 1066-8527; eISSN: 1547-5913 https://aiche.onlinelibrary.wiley.com/doi/10.1002/prs.12597 10.1002/prs.12597
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description A risk analysis simulation was completed for a cryogenic distillation (Cryo-D) pilot operation processing a natural gas feed stream containing H2S. This study placed significant H2S concentration inside the Cryo-D and evaluated its dispersion after a simulated leak within the pilot plant. Sensitivity analysis using an in-house process simulation identified the operating conditions that caused the highest surroundings H2S concentration. A computational fluid dynamic (CFD) dispersion simulation assessed H2S leakage at the bottom column section and its effects on operators. A case with 60 bar column pressure, −30°C inlet temperature and 10% H2S input gas had the highest mass flow rate of 4.74 kg/h H2S through a leak. Leaked H2S covers 50% of the building within 60 s. Within 120 s, H2S accumulates toward the column bottom. At 120 s, most operators are exposed to above 1000 ppm H2S, which may cause fatalities instantly. Recommendations include enhancing the ventilation of the building by installing ventilation near the base of the cryogenic column in order to lessen the exposure concentration. In conclusion, H2S leakage from an indoor Cryo-D pilot plant can cause catastrophic consequences due to its rapid dispersion and accumulation throughout the building. © 2024 American Institute of Chemical Engineers.
format Article
author Mohd Shukor, Mohd Syazwan
Omar, Rozita
Abdul Hamid, Mohamad Rezi
Harun, Mohd Razif
Md Said, Mohamad Syazarudin
spellingShingle Mohd Shukor, Mohd Syazwan
Omar, Rozita
Abdul Hamid, Mohamad Rezi
Harun, Mohd Razif
Md Said, Mohamad Syazarudin
Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant
author_facet Mohd Shukor, Mohd Syazwan
Omar, Rozita
Abdul Hamid, Mohamad Rezi
Harun, Mohd Razif
Md Said, Mohamad Syazarudin
author_sort Mohd Shukor, Mohd Syazwan
title Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant
title_short Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant
title_full Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant
title_fullStr Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant
title_full_unstemmed Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant
title_sort dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant
publisher John Wiley and Sons Inc
publishDate 2024
url http://psasir.upm.edu.my/id/eprint/112842/
https://aiche.onlinelibrary.wiley.com/doi/10.1002/prs.12597
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score 13.222552

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