نتایج جستجو برای: petrochemical

تعداد نتایج: 2791  

Journal: :environmental health engineering and management 0
mohammad shakerkhatibi* environmental engineering, department of environmental health engineering, tabriz university of medical sciences, tabriz, iran mohammad mosaferi environmental health engineering, department of environmental health engineering, tabriz university of medical sciences, tabriz, iran khaled zorufchi benis faculty of chemical engineering, sahand university of technology, tabriz, iran zahra akbari student research committee, tabriz university of medical sciences, tabriz, iran

background: the measurement data regarding the influent and effluent of wastewater treatment plant (wwtp) provides a general overview, demonstrating an overall performance of wwtp. nevertheless, these data do not provide the suitable operational information for the optimization of individual units involved in a wwtp. a full-scale evolution of wwtp was carried out in this study via a reconciled ...

Journal: : 2023

The paper discusses measures to improve the efficiency of plant for production methyl tert-butyl ether at JSC "Angarsk Petrochemical Company"

2013
AASTHA GUPTA ASHA RANI VIJANDER SINGH

Distillation is an essential separation process in the chemical and petrochemical industry. The distillation process is a highly nonlinear, complex, interactive and non -stationary, therefore its control is difficult. In the present work an adaptive neuro-fuzzy controller is designed to control a binary distillation process. A conventional PID controller is also designed for comparison purpose....

2014
Rama Rajaram

Phenolic derivatives are used as raw materials in textiles, pulp and paper, petrochemical, pharmaceutical, oil-refineries and leather industries. These heterocyclic aromatic chemicals are among the most frequently found pollutants in industrial effluents. Since these compounds are toxic either through ingestion, inhalation or contact even at low concentrations, biodegradation of the effluent is...

This article models and forecasts the domestic and exports demand  of products of Persian Gulf Petrochemical Industries Company (PGPIC) using a dynamic panel data model. The model is estimated using GMM method and domestic and export price index, the quantity demanded ​​of the company's products, the global price index of alternative products and the income of demandant companies for the PGPIC'...

Journal: :پژوهش های مدیریت منابع سازمانی 0
الناز ایقانی اردبیلی دانشگاه آزاد اسلامی تهران شمال محمد منصور ریاحی کاشانی رئیس گروه کارشناسی ارشد مهندسی کامپیوتر دانشگاه آزاد اسلامی تهران شمال احمد آقامحمدی استاد دانشگاه جامع علمی کاربردی بیمه ایران کارمند واحد عملیات ارزی بانک پارسیان

the lack of a structured anticipating about high usage product of the national petrochemical company, has forced this company to buy forecasted price from foreign countries. prevent the outflow of foreign exchange and tolerance of political factors such as sanctions in this field requires a forecast of prices in our country. due to the chain-like nature of the petrochemical products, and the ab...

It is important for us to study the factors that impact the petrochemical industry, given its importance in nonoil exports in Iran.  The petrochemical industry requires heavy investments and most countries can not directly fund all the required investment, hence the importance of foreign direct investment in the sector.  Foreign direct investment also brings with it transfer of technology and e...

Petrochemical manufacturing wastewaters often contain a high concentration of biodegradable com-pounds that possess either toxicity or activity inhibition to the biological unit. In this paper, COD removal from Petrochemical wastewaters by electro-Fenton process was studied. The effect of operating conditions such as reaction time, current density, pH, H2O2/Fe2+ molar ratio, and H2O2 of petroch...

2006
Michio Namikoshi Takeshi Fujiwara Teruaki Nishikawa Kazuyo Ukai

Analysis of the natural abundance C content of dibutyl phthalate (DBP) from two edible brown algae, Undaria pinnatifida and Laminaria japonica, and a green alga, Ulva sp., revealed that the DBP was naturally produced. The natural abundance C content of di-(2-ethylhexyl) phthalate (DEHP) obtained from the same algae was about 50-80% of the standard sample and the C content of the petrochemical (...

2018
Valerica Pandarus Rosaria Ciriminna Geneviève Gingras François Béland Mario Pagliaro Serge Kaliaguine

The new spherical sol-gel hybrid material SiliaCat Pd0 selectively mediates the hydrogenolysis of aromatic alcohols, aldehydes, and ketones by using an ultralow catalytic amount (0.1 mol % Pd) under mild reaction conditions. The broad reaction scope as well as the catalyst's superior activity and pronounced stability open the route to green and convenient reductive deoxygenation processes of pr...

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