List of Articles Oil refinery

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  1 - Environmental Risk Assessment of Gachsaran Oil Refinery Production Unit by Integrating Multi Criteria Decision Making and Environmental Failure-Mode and Effects Analysis
  jahanbakhsh balist Bahram Malek mohammadi Faeze Chehrzar Yasser Moarab
  10.22034/jest.2018.12588
  Background and Objective:Risk assessment is a method to determine risk quantitative and qualitative and probable accident consequence on people, materials, equipment and environment. By doing so, existence controlling methods effectiveness are specified and valuable dat More

  Background and Objective:Risk assessment is a method to determine risk quantitative and qualitative and probable accident consequence on people, materials, equipment and environment. By doing so, existence controlling methods effectiveness are specified and valuable data for decision making in risk mitigating is produced. Method: In this study, GACHSARAN oil refinery production unit is assessed. The purpose of this study is environmental risk assessment of this unit by updating methods and techniques and representing controlling strategies to manage these risks. Simultaneously use of several risk assessment and multi criteria decision making can lead to optimum risk management. To achieve this goal, the Environmental Failure-Mode and Effects Analysis (EFMEA), analytic hierarchy process (AHP) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) are used. Findings: At first by site visiting and obtaining expert opinions of the unit, risks are identified and evaluated according to their effects on environmental of five components. In the following, risk priority number in specified and enter to TOPSIS and prioritized. Discussion and Conclusion: The results showed that important risks are exhausted pollutant from stack and carry over to flare.   Manuscript profile
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  2 - Determination of appropriate method for estimating of MTBE absorption coefficient by the soil of Tehran oil refinery (Ray city)
  Mohammad Nickhah Monfared mohammad reza Sabour
  Methyl Tertiary-Butyl Ether (MTBE) is one of the gas additives that can be more effective in increasing the octan rating of fuel. EPA (Environmental Protection Agency) has labeled MTBE in carcinogen compounds.This compound can leak into the soil from&nbsp More

  Methyl Tertiary-Butyl Ether (MTBE) is one of the gas additives that can be more effective in increasing the octan rating of fuel. EPA (Environmental Protection Agency) has labeled MTBE in carcinogen compounds.This compound can leak into the soil from underground fuel tanks and its chemical and physical properties affords rapid influence.Sorption ability of soil, is so effective in influence of MTBE into the soil and “distribution Coefficient (Kd)” can show this ability. Kd is one of the important effectives that recently lionizes in Environmental Geotechnics and its range is so wide in as much as it can be “0” or “1000” and more; This wide range is important in using numerical models for underground water and contaminant trasformation modeling.In this study, the real value of sorption has been determined by several sorption tests on MTBE and the soil of Ray city and according this value, various isotherm models were studied to find the most accurate model for MTBE and this soil.In this study, all of the tests have done according to ASTM standards. Finally, it’s concluded that all of studied models are appropriate for calculating Kd but in similar cases,  we can offer foloing models sequently: Dubinin-Radushkevich Model; Langmuir Model; Freundlich Model; Linear Model. Manuscript profile
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  3 - Recognition, classification and waste management of shiraz oil Refinery based on RCRA method
  Parvin Sabet Eghlidi Hady Zarei Ghasem ali Omrani
  AbstractThe management of Industrial solid wastes such as oil sludge and un industrial wastes is one of themost appropriate methods for reducing the adverse effects of industrial activities on the environment.The purpose of this study is identifying and classification o More

  AbstractThe management of Industrial solid wastes such as oil sludge and un industrial wastes is one of themost appropriate methods for reducing the adverse effects of industrial activities on the environment.The purpose of this study is identifying and classification of wastes in order to manage them until thelast stage of waste management in shiraz oil refinery. The field study has been accomplished in Shirazoil refinery. Based on the research, after studying production process, the points of waste production,and the period of waste discharge, the type and tonnage of waste production were recognized. Thenspecific codes allocated to the recognized wastes by RCRA and separated to dangerous and nondangerouswastes. After recognizing the productive residues specified by rule's RCRA the resultsshowed that 43% of productive industrial wastes in Shiraz oil refinery are dangerous. Of totaldangerous wastes recognized, 91% were in the list of F (lists of dangerous wastes with unknownsource) and of 9% in K list (lists of dangerous wastes with specified source) so that, 54 % of wastemass have toxic properties, 22% of flammability, 23% reactive and 1% were corrosive. Finally, thecorrect way of productive residues in Shiraz oil refinery should be based on the hierarchical presentedof Environmental Protection Agency of America, and it was offered to use the new methods forreducing the production of oil sludge and suggested a place with the appropriate specifications in orderto Maintain the special industrial waste. Manuscript profile
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  4 - Special Conditions Designing a Development Model for Optimizing the Production of Gasoline Products in the Oil Refinery in Spring and Summer
  Babak Dashtkar Saber Khandanalamdari Neda Farahbakhsh
  10.30495/jsm.2021.1943011.1546
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  5 - Identification of the resistant bacterial strains from Kermanshah oil wastewater based on molecular 16S rDNA PCR ssequencing and the investigation of their growth in different chromium concentration
  Sepideh Khodamoradi Ramin Abiri
  The present study was conducted to identify the resistant bacterial strains from Kermanshah oil wastewater based on molecular 16S rDNA PCR sequencing and the investigation of their growth in different chromium concentration. To identify 16S rDNS, 94 samples were isolate More

  The present study was conducted to identify the resistant bacterial strains from Kermanshah oil wastewater based on molecular 16S rDNA PCR sequencing and the investigation of their growth in different chromium concentration. To identify 16S rDNS, 94 samples were isolated from Kermanshah oil wastewater. Sequencing the best strain for most removal was conducted. Bactria were identified by morphology, Gram staining, Biochemical tests, Standard microbiology. Cr (VI) was incubated in the concentrations of 25, 50, 100 and 150 mg/ml for 96 h. The maximum Cr biosorption (0.35 ppm) was observed at 28°C and a pH=7.5-8. Biological oxygen demand was 126-530. The most isolates had a need from 7.2-7.90 for chemical oxygen demand. Based on obtained results, Klebsiella variicola, Bacillus aerius, Bacillus stratosphericus and Lysinibacillus fusiformis were most resistant strains. Bacteria growth was higher in control, 25, 50, 100 and 150 mg, respectively. All the bacteria showed a fix growth after 72h. Considering high resistant of Klebsiella variicola, Bacillus aerius, Bacillus stratosphericus and Lysinibacillus fusiformis, the strains can be used for bioremediation of chromium and decreasing aontaminations, especially in oil refinery. Manuscript profile
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  6 - ارزیابی رشد و توانایی گیاه پالایی تال فسکیو زینتی و آفتابگردان در خاک‌های آلوده به هیدروکربن های نفتی
  کامران پروانک
  چکیده لجن نفتی پسماندهای حاصل از فرآیندهای پالایش نفت خام می‌باشند و اولویت‌ترین آلاینده های آلی موجود در محیط زیست هستند. تحقیق حاضر با هدف بررسی توانایی گیاه آفتابگردان و تال فسکیوی زینتی جهت پالایش لجن نفتی پالایشگاه اصفهان و عکس‌العمل رشد این گیاهان به آلودگی نفتی د More

  چکیده لجن نفتی پسماندهای حاصل از فرآیندهای پالایش نفت خام می‌باشند و اولویت‌ترین آلاینده های آلی موجود در محیط زیست هستند. تحقیق حاضر با هدف بررسی توانایی گیاه آفتابگردان و تال فسکیوی زینتی جهت پالایش لجن نفتی پالایشگاه اصفهان و عکس‌العمل رشد این گیاهان به آلودگی نفتی در شرایط گلخانه انجام شد. بدین منظور لجن نفتی پس از هوا خشک شدن به نسبت‌های صفر(شاهد)، 10 و 20 درصد وزنی با خاک غیر آلوده مخلوط و به صورت جداگانه در گلدان (3 kg) ریخته شد. آزمایش به‌صورت کرت‌های خرد شده در قالب طرح کاملاً تصادفی در سه تکرار اجرا گردید. بر اساس نتایج، میانگین درصد جوانه‌زنی گیاه تال فسکیو با افزایش مقدار لجن از سطح 0 به سطح 10 و 20 درصد به‌طور معنی‌داری کاهش یافت (P<0.01). در گیاه آفتابگردان این کاهش معنی‌دار نبود. میانگین ارتفاع، عملکرد ریشه و اندام هوایی گیاه تال فسکیو فقط در تیمار 20 درصد لجن نفتی نسبت به تیمار شاهد کاهش معنی‌دار نشان داد. در گیاه آفتابگردان این کاهش در هر سه سطح لجن معنی‌دار نبود (P<0.01). بیشترین مقدار کاهش هیدروکربن‌های نفتی (89%) در ریزوسفر گیاه تال فسکیو، در سطح 10 درصد لجن نفتی مخلوط با خاک مشاهده شد. با افزایش میزان لجن مصرفی به بیش از 10 درصد، میزان تجزیه هیدروکربن‌های نفتی در ریزوسفر هر دو گیاه به طور معنی‌داری کاهش یافت. بنابراین به دلیل رشد و عملکرد مناسب ماده خشک گیاهی و داشتن سیستم ریشه فیبری در گیاه تال فسکیو که سبب کاهش بیشتر کل هیدروکربن‌های نفتی می‌شود، استفاده از این گیاه به عنوان گونه‌ای مناسب برای گیاه پالایی خاک‌های آلوده به لجن نفتی پالایشگاه اصفهان توصیه می‌شود. Manuscript profile
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  7 - Identifying and Prioritizing Productivity Pathology of Abadan Oil Refinery Company based on the Three-Pronged Model
  Mona Javi Mikaniki Samaneh Salimi Farzad Baneshi
  The current research was conducted with the aim of identifying and prioritizing productivity complications of Abadan Oil Refinery Company based on the three-pronged model. This research is applied in terms of purpose and exploratory (qualitative-quantitative) in terms o More

  The current research was conducted with the aim of identifying and prioritizing productivity complications of Abadan Oil Refinery Company based on the three-pronged model. This research is applied in terms of purpose and exploratory (qualitative-quantitative) in terms of mixed method. The statistical population in the qualitative section includes middle level managers of Abadan Oil Refinery who were selected through targeted sampling based on theoretical saturation of 15 people. In the quantitative part, 219 employees of the refinery were selected by simple random sampling based on Morgan's Krejci table. The collection tool was a semi-structured interview in the qualitative part and a researcher-made questionnaire based on the interviews in the quantitative part. In order to analyze the data, thematic analysis method was used in the qualitative part and descriptive statistics (percentage and frequency) were used in the quantitative part. Based on the findings of the qualitative section, 22 complications were obtained, of which 8 complications are related to structural complications, 7 complications are related to behavioral complications, and 5 complications are related to environmental complications. The findings of the quantitative section using the Friedman test for ranking showed that among the structural complications: the factor of laws and regulations, among the behavioral complications: the factor of knowledge, awareness and skill, and among the environmental complications: the factor of belief and attitude. The society was the most important complication, and they are in the first priority. Manuscript profile
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  8 - Isolation and identification of toluene-degrading bacteria from oil spills of Gharehsoo River located in Kermanshah city
  Narges Shamsi Roya Moravej
  Background & Objectives: Biodegradation is one of the most useful methods for elimination of oil spills and is recently considered as a promising approaches due to numbers of advantages, including low costs, high efficiency and being environment friendly. Gharehsoo More

  Background & Objectives: Biodegradation is one of the most useful methods for elimination of oil spills and is recently considered as a promising approaches due to numbers of advantages, including low costs, high efficiency and being environment friendly. Gharehsoo river is one of those regions which have been contaminated by oil spills during recent years due to its vicinity to Kermanshah Oil Refining Company. This study was aimed to isolate and identify the toluene-degrading bacteria from oil spills in Gharehsoo river located at Kermanshah city. Materials & Methods: In this experimental study, the samples were collected from water, soil and active sludge of the contaminated areas. Two isolates were achieved by enrichment of the samples into a selective medium containing toluene. Then, the isolates were identified using morphology, Gram staining, biochemical methods and 16S rRNA sequencing. Also, the ability of isolates to eliminate toluene was testes based on Gas chromatography. Results: Both isolates were identified as Pseudomonas putida strains. Gas chromatography tests showed that the isolates 1 and 2 were able to degrade toluene into the selective medium (0.5% v/v) 89% and 87%, at 72 C, respectively. The isolates were also able to resist and grow under harsh conditions of temperature, pH and osmolality. It was proved that the isolates were able to continue their activity and growth in the presence of other crude oil pollutants (benzene, xylene, ethyl-benzene). Conclusion: Our results showed that these isolates were very efficient for elimination of oil pollutants due to their high growth rate in the presence of relatively high toluene concentration and to the ability to degrade a wide range of oil toxic compounds. Manuscript profile