نتایج جستجو برای: Natural Gas

تعداد نتایج: 709124  

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: :the international journal of humanities 2015
hamid abrishami fatemeh bourbour ma’asoumeh aghajani

in this paper, a model based on gmdh type neural network, is used to predict gas price in the spot market while using oil spot market price, gas spot market price, gas future market price, oil future market price and average temperature of the weather. the results suggest that gmdh neural network model, according to the root mean squared error (rmse) and direction statistics (dstat) statistics ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده فنی 1388

چکیده ندارد.

Journal: :تحقیقات جغرافیایی 0
هادی اعظمی دانشگاه فردوسی مشهد بهادر غلامی دانشگاه تهران

the request for natural gas attention to its adaption with environment and less pollution than the other fossil fuels has the highest growth in last decades. in result this energy has high geopolitical importance. iran with has about 2.18 percent of total world reserves, the largest in the world. but couldn't played important role in the natural gas geopolitics and even it hasn't in b...

Journal: :international journal of environmental research 0
m.s. sekhavatjou department of environmental engineering, khouzestan science and research branch, islamic azad university, ahvaz, iran r. moradi department of environmental engineering, khouzestan science and research branch, islamic azad university, ahvaz, iran a. hosseini alhashemi department of environmental science, khouzestan science and research branch, islamic azad university, ahvaz, iran a. taghinia hejabi environmental consultant, simpleks co., istanbul, turkey

use of zinc and iron oxide are common in the desulfurization process from natural gas. in thisresearch, after determinations of the size and specifications through tem and xrd for each of the metaloxides, two different size ratios were used, 0.66 for zinc oxide and 0.142 for iron oxide. further, absorption of sulfur compounds in gas (hydrogen sulfide (h2s), carbonyl sulfide (cos), methyl mercap...

Journal: :gas processing 0
afife banavand department of chemical engineering, reservoir engineering, bahonar university, kerman, iran amir sarafi department of chemical engineering, reservoir engineering, bahonar university, kerman, iranof chemical engineering amir ehsan feilimonfared department of chemical engineering, reservoir engineering, bahonar university, kerman, iran

compressibility factor and viscosity of natural gasses are of great importance in petroleum and chemical engineering. to calculate the natural gas properties in the pipelines, storage systems and reservoirs, the exact values of gas compressibility factor and viscosity are required. a new method that allows accurate determination of compressibility factor and gas viscosity for all types of: swee...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده مهندسی 1387

چکیده ندارد.

Journal: :iranian journal of oil & gas science and technology 2015
vahid mohebbi reza mosayebi behbahani

in this study, mass transfer coefficients (mtc’s) of natural gas components during hydrate formation are reported. this work is based on the assumption that the transport of gas molecules from gas phase to aqueous phase is dominant among other resistances. several experiments were conducted on a mixture of natural gas at different pressures and temperatures and the consumed gas was monitored an...

Journal: :international journal of smart electrical engineering 2013
mahdieh qanbari shahram javadi reza sabbaghi-nadooshan

in this paper, an adaptive-network-based fuzzy inference system (anfis) is used for forecasting of natural gas consumption. it is clear that natural gas consumption prediction for future, surly can help statesmen to decide more certain. there are many variables which effect on gas consumption but two variables that named gross domestic product (gdp) and population, are selected as two input var...

Journal: :تحقیقات اقتصادی 0
محمدعلی رئیس زاده کارشناس ارشد مهندسی صنایع، دانشگاه علوم اقتصادی محمدرضا منجذب استادیار گروه اقتصاد، دانشگاه علوم اقتصادی

the natural gas consumption in iran has been continuously increasing due to several reasons including low prices of natural gas, development of gas supply networks, people’s salary increase, incorrect consumption culture and the increase of national economy growth.  although, the global natural gas consumption has increased by 38% since 2001, the national consumption in iran has increased by 11...

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