نتایج جستجو برای: refinery and petrochemical companies

تعداد نتایج: 16836538  

Journal: :International journal of membrane science and technology 2023

The fundamental purpose of the petroleum refining industry is to convert crude oil into refined products comprising more than 2,500 substances. Among are liquefied gasoline, aviation fuel, kerosene, fuel oils, diesel lubricating and feedstocks, which have a variety uses in petrochemical other industries. refinery process begins with storage continues handling operations before concluding separa...

2014

This study analyzes a barrier of developing Exchange named lack of information related to performance of organization. This paper proposes a combined approach to decision making that Examine companies financial performance and offers an optimal way to solve the problem of ranking and efficiency survey. FAHP-TOPSIS approach is used to rating companies and FAHP-DEA approach is used for efficiency...

The main objective of this research is to optimize the stock portfolio of investment companies operating in the field of petrochemical and refining industries through minimizing risk with respect to the expected return. In this regard, first of all, the compositions of sample firm's portfolios were investigated during 2013 to 2016 and high-weight industries were selected. Then, the risk of retu...

2007

Machinery Technology, for KBR, in Houston, Texas. In his assignment, he is responsible in the preparation and auditing of specifications, equipment evaluation, engineering coordination, and testing and installation startup of rotating and special equipment. He has worked in various applications of rotating machinery in the petrochemical and refinery processes including ammonia, LNG, olefins, ca...

Journal: :محیط زیست طبیعی 0
لیلا دواشی دانشجوی کارشناسی ارشد محیط زیست دانشکدۀ منابع طبیعی و کویرشناسی، دانشگاه یزد حمیدرضا عظیم زاده دانشیار دانشکدۀ منابع طبیعی و کویرشناسی ـ پژوهشکدۀ مناطق خشک و بیابانی، دانشگاه یزد

increasing in concentration of heavy metals such as lead, cadmium, nickel, chromium and zinc cause considerable harmful effects on soil and environment. these elements are also hazardous to health of humans and wildlife. petrochemical plants and refineries pollution increase the amount of carcinogenic and tratogenic compounds in environment. the main goal of recent paper is the studying of soil...

2013
W. Mughees M. Al - Ahmad

This research involves the design and analysis of pinch-based water/wastewater networks to minimize water utility in the petrochemical and petroleum industries. A study has been done on Tehran Oil Refinery to analyze feasibilities of regeneration, reuse and recycling of water network. COD is considered as a single key contaminant. Amount of freshwater was reduced about 149m/h (43.8%) regarding ...

2012
ELDON R. RENE MARÍA C. VEIGA CHRISTIAN KENNES

Preliminary studies on the performance of a laboratory scale perlite biofilter inoculated with a mixed culture taken from petrochemical refinery sludge was evaluated for gas phase styrene removal under various operating conditions. Initially, the biofilter was acclimatized for 53 days at constant loading rates (40-60 g/m.h), wherein the performance gradually improved with fluctuations in the re...

2013
Miguel Ángel López-Navarro Jaume Llorens-Monzonís Vicente Tortosa-Edo

Perceived risk of environmental threats often translates into psychological stress with a wide range of effects on health and well-being. Petrochemical industrial complexes constitute one of the sites that can cause considerable pollution and health problems. The uncertainty around emissions results in a perception of risk for citizens residing in neighboring areas, which translates into anxiet...

Journal: :international journal of advanced biological and biomedical research 0
mohammad mehdi esmaili m.sc. student, department of marine chemistry, marine science and technology university, khorramshahr, iran yadullah nikpour ghanavati assistance professor ,department of marine chemistry, marine science and technology university, khorramshahr, iran kamal ghanemi assistance professor ,department of marine chemistry, marine science and technology university, khorramshahr, iran

objective: the objective of this research is to examine pcb compounds in the persian gulf in the southern pars area. methods: in the research, 6 stations were sampled: asalouyeh port, kangan site, mehr petro kima petrochemical, 4th refinery in southern pasr, taheri port and aria sasol polymer. to sample water in the stations determined, one-liter sampling bottles of dark glass were used. in eac...

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