نتایج جستجو برای: gas refinery

تعداد نتایج: 247371  

2004
Denis Westphalen

Process simulation has been widely used in refineries for more than 30 years. Steady state and dynamic simulations are established tools for the design of new process units and optimisation (off and online) of existing facilities. While mathematical models of separation systems and other unit operations are available in most commercial process simulators, refinery reactors are very specialised ...

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

during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...

Journal: :gas processing 0
mohammad ali fanaei chemical engineering department, engineering faculty, ferdowsi university of mashhad, mashhad, iran shahram zahed rahimi chemical engineering department, engineering faculty, ferdowsi university of mashhad, mashhad, iran

the present sought to draw a comparison between model predictive control performance and two other controllers named simple pi and selective pi in controlling large-scale natural gas transport networks. a nonlinear dynamic model of representative gas pipeline was derived from pipeline governing rules and simulated in simulink® environment of matlab®. control schemes were designed to provide a s...

Journal: :iranian journal of environmental sciences 0
a. r. noorpoor associate professor, graduate faculty of environmental, university of tehran, tehran, iran m. bayatian phd student in professional hygiene, faculty of public health, islamic azad university, tehran, iran s. motaghed msc student in chemical engineering, university of petroleum, tehran, iran a. jamshidi moghadam bsc student in professional hygiene, university of medical science, tehran, iran n. rahmati msc. student in environmental science, faculty of science and research, islamic azad university, tehran, iran

we investigated the issue of noise pollution in the bidboland gas refineryby noise measurement and surveys. the bidboland gas refinery has several process units.the sound pressure levels were measured at several places, such as units of 200, 300,400, 500, boiler, powerhouse area, cooling towers pumps, and maintenance area, and thecorresponding noise maps were produced by using sound plan softwa...

1997
David W. McDonald Mark S. Ackerman

The conceptual framework of a new system, Collaborative Refinery, is motivated by a scenario involving the creation of an FAQ. The scenario introduces the concepts of collecting, culling, organizing and distilling. Distilling is a specialized form of collaborative authoring with support for content selection and genre. The Web-based user interface supporting access to the four conceptual functi...

2013
Mohemid Al-Jebouri Ashwaq Al-Doori

Conclusions The highest incidence of allergy was recorded among refinery patients. The present study revealed that the percentages of 80 and 42 pathogenic strains were isolated from 74 and 39 allergic patients with respiratory infections from refinery and nonrefinery hospitalized patients respectively. The high incidence of asthma and respiratory infections in the oil refinery plant could be du...

2000
Patrick M. Wright Gary C. McMahan Blaine McCormick W. Scott Sherman

This study examined the impact strategy, core competence, and involvement of HR executives in strategic decision making on the refinery managers' evaluation of the effectiveness of HR and refinery performance among 86 U.S. petro-chemical refineries. Survey results indicated that higher involvement of HR in organizational strategy was strongly related to perceptions of HR effectiveness, and that...

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