Application of Hazard and Operability Analysis (HAZOP) Method for Risk Analysis in CGS Station
Background: The hazard and operability study (HAZOP) method is a risk assessment method based on engineering systems used for qualitative analysis or quantitative evaluation. It is mainly used to discover potential hazards and operational difficulties in the design and qualitative stages of chemical...
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| Format: | Article |
| Language: | English |
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Shahid Sadoughi University of Medical Science, Yazd, Iran
2022-07-01
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| Series: | Archives of Occupational Health |
| Subjects: | |
| Online Access: | http://aoh.ssu.ac.ir/article-1-289-en.pdf |
| _version_ | 1797311469503643648 |
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| author | rajabali hokmabadi ali karimi |
| author_facet | rajabali hokmabadi ali karimi |
| author_sort | rajabali hokmabadi |
| collection | DOAJ |
| description | Background: The hazard and operability study (HAZOP) method is a risk assessment method based on engineering systems used for qualitative analysis or quantitative evaluation. It is mainly used to discover potential hazards and operational difficulties in the design and qualitative stages of chemical systems. The study aims to apply the HAZOP method in process and safety operations at gas depressurization station. Methods: This descriptive study was performed at CGS station. The station was divided into four principal nodes including: filter, heater, regulator, and odorize part. Required information for HAZOP worksheets were gathered by operational procedures, daily reports and interviews with engineers and operators working at the station. To determine the severity of consequences and probability of occurrence of scenarios that were predicted based on the risk matrix, the amount of risk was specified and the necessary suggestions were made in this regard. Results: According to this study, the operational indicators in the pressure reducing station process included pressure, flow, level and temperature. 22 main deviations and 50 causes of failures were identified. 5 deviations (23%) were in the low risk range (green area) and 17 (77%) were in the medium risk range (yellow area). Conclusions: Causes and effects of deviations in operational parameters at four nodes in gas depressurization station were identified by HAZOP. Preventive actions were emphasized, such as consistent inspection of pipelines, preventive and timely maintenance and preparing a well-scheduled plan for inspecting the equipment in terms of corrosion, inspection, and design revision. |
| first_indexed | 2024-03-08T01:59:12Z |
| format | Article |
| id | doaj.art-c495594eae484ac0a59c2fd5bd5db3e0 |
| institution | Directory Open Access Journal |
| issn | 2588-3070 2588-3690 |
| language | English |
| last_indexed | 2024-03-08T01:59:12Z |
| publishDate | 2022-07-01 |
| publisher | Shahid Sadoughi University of Medical Science, Yazd, Iran |
| record_format | Article |
| series | Archives of Occupational Health |
| spelling | doaj.art-c495594eae484ac0a59c2fd5bd5db3e02024-02-14T06:43:57ZengShahid Sadoughi University of Medical Science, Yazd, IranArchives of Occupational Health2588-30702588-36902022-07-016312961308Application of Hazard and Operability Analysis (HAZOP) Method for Risk Analysis in CGS Stationrajabali hokmabadi0ali karimi1 Department of Occupational Health Engineering, Faculty of Health, Tehran University of Medical Sciences, Tehran, Iran. Faculty member of Health School, North Khorasan University of Medical Sciences, Bojnurd, Iran Department of Occupational Health Engineering, Faculty of Health, Tehran University of Medical Sciences, Tehran, Iran Background: The hazard and operability study (HAZOP) method is a risk assessment method based on engineering systems used for qualitative analysis or quantitative evaluation. It is mainly used to discover potential hazards and operational difficulties in the design and qualitative stages of chemical systems. The study aims to apply the HAZOP method in process and safety operations at gas depressurization station. Methods: This descriptive study was performed at CGS station. The station was divided into four principal nodes including: filter, heater, regulator, and odorize part. Required information for HAZOP worksheets were gathered by operational procedures, daily reports and interviews with engineers and operators working at the station. To determine the severity of consequences and probability of occurrence of scenarios that were predicted based on the risk matrix, the amount of risk was specified and the necessary suggestions were made in this regard. Results: According to this study, the operational indicators in the pressure reducing station process included pressure, flow, level and temperature. 22 main deviations and 50 causes of failures were identified. 5 deviations (23%) were in the low risk range (green area) and 17 (77%) were in the medium risk range (yellow area). Conclusions: Causes and effects of deviations in operational parameters at four nodes in gas depressurization station were identified by HAZOP. Preventive actions were emphasized, such as consistent inspection of pipelines, preventive and timely maintenance and preparing a well-scheduled plan for inspecting the equipment in terms of corrosion, inspection, and design revision.http://aoh.ssu.ac.ir/article-1-289-en.pdfhazop analysishazard identificationnatural gas |
| spellingShingle | rajabali hokmabadi ali karimi Application of Hazard and Operability Analysis (HAZOP) Method for Risk Analysis in CGS Station Archives of Occupational Health hazop analysis hazard identification natural gas |
| title | Application of Hazard and Operability Analysis (HAZOP) Method for Risk Analysis in CGS Station |
| title_full | Application of Hazard and Operability Analysis (HAZOP) Method for Risk Analysis in CGS Station |
| title_fullStr | Application of Hazard and Operability Analysis (HAZOP) Method for Risk Analysis in CGS Station |
| title_full_unstemmed | Application of Hazard and Operability Analysis (HAZOP) Method for Risk Analysis in CGS Station |
| title_short | Application of Hazard and Operability Analysis (HAZOP) Method for Risk Analysis in CGS Station |
| title_sort | application of hazard and operability analysis hazop method for risk analysis in cgs station |
| topic | hazop analysis hazard identification natural gas |
| url | http://aoh.ssu.ac.ir/article-1-289-en.pdf |
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