نتایج جستجو برای: hazop method
تعداد نتایج: 1630260 فیلتر نتایج به سال:
Background and aim: For prevention of accidents in chemical processes, the use of multiple layers of protection is essential. In this regard, the analysis of adequacy and use of protective layer resistance is a necessity. In this study the level of protection layers security of Cephalexin Crystals production unit of one the pharmaceutical companies is examined. Methods: In this descriptive s...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
Superstructure work of the toll flyover construction is one works that have a high level risk, especially when erection girder passes over existing road. This study aims to identify hazards on using HIRARC and HAZOP methods. Using these two methods requires implementation questionnaire surveying, at least 30 respondents with 34 successfully gathered. The results showed there were 36 possible wh...
The increasing digitalization and standardization within the process industry lead to a high availability of digital, machine-readable processes plant descriptions. In particular, publication DEXPI standard provides digital representation topologies including complete description all specifications. early planning phases, this can be used as basis for an automated safety assessment since signif...
بررسی انتشار گاز کلر از مخازن ذخیره به منظور تدوین برنامه واکنش در شرایط اضطراری در یک صنعت پتروشیمی
Background and aims Chlorine gas is a dangerous material that is used in chemical industries. In spite of the attempts for chlorine gas release control, sudden releases still occur in the related installations. Not taking proper emergency measures after chlorine gas dispersion may result in serious harm to health of the personnel and the people residing around the industrial area. The presen...
Os eventos impactantes ao meio ambiente na indústria do petróleo não são raros. Tanto uma análise retrospectiva das ocorrências, quanto um gerenciamento de risco adequado essenciais para a mitigação, ou até mesmo erradicação, desses acontecimentos. O artigo apresenta variedade metodologias, técnicas e índices utilizados no risco, como FRAM, STAMP, QRA, HAZOP, FTA, ETA, APP, F&EI, CEI, SWeHI...
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