نتایج جستجو برای: khangiran refinery

تعداد نتایج: 2583  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1390

این پایان نامه با عنوان شبیه سازی راکتورهای واحد ریفرمینگ کاتالیزوری با استفاده از نرم افزار hysys refinery می باشد که در آن با استفاده از نرم افزار گفته شده واحد شبیه سازی می گردد. استفاده از این نرم افزار این امکان را به کاربر می دهد تا با استفاده از بخش کالیبراسیون آن امکان ایجاد شبیه سازی سنتیکی فراهم گردد. به این ترتیب با درصد اطمینان بالا می توان جوابهای خروجی از نرم افزار را مورد تجزیه و...

Journal: :Environmental Health Perspectives 1977
N Ishinishi Y Kodama K Nobutomo A Hisanaga

To investigate carcinogenic or cocarcinogenic properties, copper ore (Kinkaseki) and flue dust collected from a metal refinery and arsenic trioxide (As2O3) were administered into the lung of male Wistar-King rats by an intratracheal instillation method. No squamous cell carcinoma of the lung was found among the rats given three arsenical substances, while adenoma or adenocarcinoma was observed....

2012
M. Joly

Intelligent production planning and scheduling are of paramount importance to ensure refinery profitability, logistic reliability and safety at the local and corporate levels. In Brazil, such activities play a particularly critical role, since the Brazilian downstream model is moving towards a demand-driven model rather than a supply-driven one. Moreover, new and specialized non-linear constrai...

2010
Ali Fatemi Shohreh Fazeli Mohammad Ghaee Mahdavian

A mathematical model for commercial naphtha catalytic reformer of Tehran refinery was developed. This model includes three sequencing fixed beds of Pt/Al2O3 catalyst at the steady state condition using detailed kinetic scheme involving 26 pseudo-components connected by a network of 47 reactions, in the range of C6 to C9 hydrocarbons. The reaction network consisted dehydrogenation, hydrogenation...

2011
Sunita Bansal Chittaranjan Hota

With the emergence of distributed systems, the problem of task scheduling has been arousing attention in recent past. Task scheduling is a NP-complete problem and it is more complicated under the distributed heterogeneous computing environment. To harness the potential of these systems, efficient scheduling algorithms are needed. This paper proposes a new distributed scheduling algorithm for in...

Journal: :Computers & Chemical Engineering 2015
Xiaoyong Gao Yongheng Jiang Tao Chen Dexian Huang

Optimizing scheduling is an effective way to improve the profit of refineries; it usually requires accurate models to describe the complex and nonlinear refining processes. However, conventional nonlinear models will result in a complex mixed integer nonlinear programming (MINLP) problem for scheduling. This paper presents a piecewise linear (PWL) modeling approach, which can describe global no...

1999
Michael Haller Gerhard Kurka Jens Volkert Roland Wagner

In this paper we present the prototype omVR, which is a Virtual Reality based safety training system for a petrol refinery. It provides an improved technique for personnel safety training and it allows users to navigate through the refinery scenes and to interact with the environment. omVR is the implementation of a training environment that immerses the user into a computer-generated reality, ...

Journal: :iranian journal of radiation research 0
k. kant dept. of physics, k l mehta dayanand college for women, faridabad, haryana, india-121 001 s. b. upadhyay g. s. sharma s. k. chakarvarti

background: radon, an invisible, odorless, heaviest (nine times heavier than air) and radioactive gas is an aberration (the only gas in the long decay chain of heavy metal elements). it is ubiquitously present in dwellings and in the environment. humans receive the greatest radiation dose in their homes. that's where they spend most time - typically 70%, more for small children. recent wor...

2006
Farid Benyahia Mohamed Abdulkarim

Crude oil and condensate refineries generate a large amount of wastewater that has both process and non-process origins. Depending on the type of crude oil, composition of condensate and treatment processes, the characteristics of refinery wastewater vary according to a complex pattern. The design and operation of modern refinery wastewater treatment plants are challenging and are essentially t...

2008
O. uekI

Background. Thirty refineries operate within Japan with a total crude processing capacity of about 4.8 million bpd. Capacity and total product demand is closely balanced. Almost all refined products are sold to the domestic market, although Japanese refineries occasionally import and export products between other Asian countries. The Japanese petroleum businesses, once protected, faced tough co...

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