نتایج جستجو برای: petrochemical industries

تعداد نتایج: 48718  

Journal: :Mìkrobìologìâ ì bìotehnologìâ 2022

Summary Surface-active compounds (SAC) and emulsifiers, due to their ability reduce interfacial tension, are widely used in various industries. Most of the SAC today produced from non-renewable petrochemical raw materials not safe for living beings environment. Biosurfactants (BS) synthesized by microorganisms renewable materials, particular, food industry waste, they a promising alternative ch...

2007
Ghanima Al-Sharrah Ali Elkamel

The petrochemical industry is a large and complex industry that contributes heavily in the economy of many Middle-East countries. It is an industry that needs strategies for different aspects of planning and production. This work presents the main strategies that must be considered for the petrochemical industry together with the corresponding tools. The strategies are presented in the field of...

2012
Hamid Abdi Abolfazl Salami Abolfazl Ahmadi

Programmable logic controllers are the main controllers in the today’s industries; they are used for several applications in industrial control systems and there are lots of examples exist from the PLC applications in industries especially in big companies and plants such as refineries, power plants, petrochemical companies, steel companies, and food and production companies. In the PLCs there ...

In this paper we study the effect of volatility in Brent oil prices on the important indices of financial markets in Iran, as well as the return on gold, from 2008 to 2018 using the Multivariate Exponential GARCH Model (MVEGARCH). We also use the ADCC-FIGARCH model to examine the asymmetric dynamic conditional correlation between Brent oil prices and financial markets in Iran. The results of th...

Journal: : 2023

The article discusses the prospects for purification of industrial wastewater from phenols in oil refining, petrochemical and chemical industries with production waste. technological scheme treatment by modified carbonate sludge is given. In technologies, it proposed to use a large-tonnage energy waste - sludge. paper considers technology granulation, its characteristics are studied. To evaluat...

ژورنال: سلامت کار ایران 2011
جهانگیری, مهدی, خواجی, سلیمان, سلطان زاده, احمد, طباطبایی, سید حمیدرضا, چوبینه, علیرضا,

  Background and aims Shiftwork that affects diverse aspects of human life is arranged in various schedules, each has its own advantages and disadvantages. This study was carried out with the objectives of determination of common 12-hour shift schedules in petrochemical plants, comparison of shift work health-related problems among employees working in different shift schedules and recommendati...

  Optimal management and planning in the petrochemical industry will bring about many economic benefits, including depended industries. In this research we examine technical and operational planning in the petrochemical supply chain network to assess how to optimize periodic decisions such as inventory of raw materials and products, pricing, transportation and flow of materials and products. In...

Journal: :ChemistrySelect 2023

Corrosion inhibitors for mild steels subjected to aggressive media are needed by various industries, especially in power plants, petrochemical, automobile, and pharmaceutical. Accordingly, Schiff bases as a category of organic have demonstrated efficient protecting activity corrosive environments. This review focuses on the corrosion inhibitory performance different steel acidic underlines repo...

Journal: :IJDSN 2014
Feng Wang Guangjie Han Jinfang Jiang Hao Qiu

1 Department of Information & Communication Systems, Hohai University, Changzhou 213022, China 2Guangdong Provincial Key Laboratory of Petrochemical Equipment Fault Diagnosis, Guangdong University of Petrochemical Technology, Maoming 525000, China 3 School of Information Science & Engineering, Changzhou University, Changzhou 213164, China 4Changzhou Key Laboratory of Photovoltaic System Integra...

2014
J. Li Y. Wang H. Chen

After an earthquake, the fire risk of petrochemical enterprises is higher than that of other enterprises as it involves production processes with inflammable and explosive characteristics. Using Chinese petrochemical enterprises as the research object, this paper uses a literature review and case summaries to study, amongst others, the classification of petrochemical enterprises, the proportion...

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