National Iranian Gas Company

www.iraniangas.ir/Portal/Home/
Tehran, Iran

The National Iranian Gas Company was established in 1965 as one of the four principal companies affiliated to the Ministry of Petroleum of the Islamic Republic of Iran with 25,000 million Rials initial capital.NIGC is responsible for the treatment, transmission, and delivery of natural gas to the domestic, industrial, and commercial sectors and power plants. The National Iranian Gas Exports Company was created in 2003 to manage and to supervise all gas pipeline and LNG projects. Until May 2010, NIGEC was under the control of the NIOC, but the Petroleum Ministry transferred NIGEC, incorporating it under NIGC in an attempt to broaden responsibility for new natural gas projects.As at 2012, 12,750 villages have been connected to gas network. NIGC does not play a role in awarding upstream gas projects; that task remains in the hands of the National Iranian Oil Company. Iran has the largest gas network in the world with 30,000 kilometres of high-pressure pipelines. Wikipedia.


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Ghiasi M.M.,National Iranian Gas Company | Bahadori A.,Southern Cross University of Australia | Zendehboudi S.,University of Waterloo
Journal of Natural Gas Science and Engineering | Year: 2014

Natural gas usually contains a large amount of water and is fully saturated during production operations. In natural gas dehydration units' water vapor is removed from natural gas streams to meet sales specifications or other downstream gas processing requirements. Many methods and principles have been developed in the natural gas dehydration process for gaining high level of triethylene glycol (TEG) purity. Among them, reducing the pressure in the reboiler at a constant temperature results in higher glycol purity. The main objective of this communication is the development of an intelligent model based on the well-proven standard feed-forward back-propagation neural network for accurate prediction of TEG purity based on operating conditions of reboiler. Capability of the presented neural-based model in estimating the TEG purity is evaluated by employing several statistical parameters. It was found that the proposed smart technique reproduces the reported data in the literature with average absolute deviation percent being around 0.30%. © 2014 Elsevier B.V.


The report covers forecast and analysis for the compressed natural gas market on a global and regional level. The study provides historic data of 2014 along with a forecast from 2015 to 2020 based on both volume (Million Cubic Meters) and revenue (USD Billion). The study includes drivers and restraints of the compressed natural gas market along with the impact they have on the demand over the forecast period. Additionally, the report includes the study of opportunities available in the compressed natural gas market on a global level. In order to give the users of this report a comprehensive view on the compressed natural gas, we have included a detailed competitive scenario and source portfolio of key vendors. To understand the competitive landscape in the market, an analysis of Porter’s five forces model for the compressed natural gas market has also been included. The study encompasses a market attractiveness analysis, wherein source segments are benchmarked based on their market size, growth rate and general attractiveness. The study provides a decisive view on the compressed natural gas market by segmenting the market based on source, applications and regions. All the segments have been analyzed based on present and future trends and the market is estimated from 2014 to 2020. Based on source, compressed natural gas market can segmented into associated gas, non-associated gas, and unconventional methods. Key application markets covered under this study includes light duty vehicles, medium/heavy duty buses, and medium/heavy duty trucks. The regional segmentation includes the current and forecast demand for North America, Europe, Asia Pacific, Latin America, and Middle East and Africa with its further, Bifurcation into major countries including U.S., Germany, France, UK, China, Japan, India and Brazil. The report covers detailed competitive outlook including the market share and company profiles of the key participants operating in the global compressed natural gas market include Indraprastha Gas Limited (IGL), National Iranian Gas Company, Mahanagar gas Limited (MNGL), and J-W Power Company, OAO Gazprom, Trillium CNG, GNVert, ANGI Energy Systems Inc., NeoGas Inc., China Natural Gas Inc. and J-W Power Company. The detailed description of players includes parameters such as company overview, financial overview, business strategies and recent developments of the company. This report segments the global compressed natural gas market as follows:


Compressed Natural Gas (Associated Gas, Non-Associated Gas, Unconventional Methods) Market for Light Duty Vehicles, Medium/Heavy Duty Buses, Medium/Heavy Duty Trucks Applications: Global Industry Perspective, Comprehensive Analysis, Size, Share, Growth, Segment, Trends and Forecast, 2014 – 2020 The report covers forecast and analysis for the compressed natural gas market on a global and regional level. The study provides historic data of 2014 along with a forecast from 2015 to 2020 based on both volume (Million Cubic Meters) and revenue (USD Billion). The study includes drivers and restraints of the compressed natural gas market along with the impact they have on the demand over the forecast period. Additionally, the report includes the study of opportunities available in the compressed natural gas market on a global level. In order to give the users of this report a comprehensive view on the compressed natural gas, we have included a detailed competitive scenario and source portfolio of key vendors. To understand the competitive landscape in the market, an analysis of Porter’s five forces model for the compressed natural gas market has also been included. The study encompasses a market attractiveness analysis, wherein source segments are benchmarked based on their market size, growth rate and general attractiveness. The study provides a decisive view on the compressed natural gas market by segmenting the market based on source, applications and regions. All the segments have been analyzed based on present and future trends and the market is estimated from 2014 to 2020. Based on source, compressed natural gas market can segmented into associated gas, non-associated gas, and unconventional methods. Key application markets covered under this study includes light duty vehicles, medium/heavy duty buses, and medium/heavy duty trucks. The regional segmentation includes the current and forecast demand for North America, Europe, Asia Pacific, Latin America, and Middle East and Africa with its further, Bifurcation into major countries including U.S., Germany, France, UK, China, Japan, India and Brazil. The report covers detailed competitive outlook including the market share and company profiles of the key participants operating in the global compressed natural gas market include Indraprastha Gas Limited (IGL), National Iranian Gas Company, Mahanagar gas Limited (MNGL), and J-W Power Company, OAO Gazprom, Trillium CNG, GNVert, ANGI Energy Systems Inc., NeoGas Inc., China Natural Gas Inc. and J-W Power Company. The detailed description of players includes parameters such as company overview, financial overview, business strategies and recent developments of the company. This report segments the global compressed natural gas market as follows:


Ghiasi M.M.,National Iranian Gas Company | Shahdi A.,Islamic Azad University at Tehran | Barati P.,Petroleum University of Technology of Iran | Arabloo M.,Islamic Azad University at Tehran
Industrial and Engineering Chemistry Research | Year: 2014

Knowledge of the phase behavior of condensate gas systems is important for predicting reservoir performance and future processing needs. In this communication, new improved models are developed to calculate the gas phase and two phase compressibility factors based on constant volume depletion (CVD) analysis of the well stream effluent at any depleted state in retrograde gas condensate systems. These methods are based on compositional analysis of more than 1300 compositions of gas condensates collected worldwide. The average absolute relative deviation and correlation coefficient of the developed models from experimental gas phase and two phase compressibility factor values were about 0.73% and 0.998 and 1.30% and 0.992, respectively. This study also presents an evaluation of 120 possible methods of calculating the gas compressibility factor for gas condensates. The accuracy of the new models has been compared to all 120 methods. The comparison indicates that the proposed models are consistent, reliable, and superior to all the methods. © 2014 American Chemical Society.


Tavan Y.,National Iranian Gas Company | Shahhosseini S.,Iran University of Science and Technology | Hosseini S.H.,Ilam University
Separation and Purification Technology | Year: 2014

Separation of azeotropic mixtures is one of the most energy intensive systems in petrochemical industries. In the present study effect of feed-splitting on energy demand of the extractive distillation of CO 2-ethane azeotropic process is studied by means of Hysys process simulation software and relevant optimization analysis. Two alternatives are proposed for using feed-splitting technique in the process. The proposal presented in this work is splitting the feed before entering it to the heat exchanger in such a way of keeping a proper fraction of the feed at its original temperature and the rest being heated up with the warmer bottom product. A comparison between the results of the feed-splitting configurations and the conventional process in terms of total energy demand and environmental problems are carried out to determine the best scheme. It is observed that the best scheme of feed splitting technique in its optimized state leads to 56% reduction in energy demand in comparison with the conventional process. © 2013 Elsevier B.V. All rights reserved.


Tavan Y.,National Iranian Gas Company | Hosseini S.H.,Ilam University
Chemical Engineering and Processing | Year: 2013

The vapor phase dimethyl ether (DME) synthesis is simulated by Hysys process simulation software and relevant cost analysis is also conducted. Based on cost estimation results, it is found that capital investment of the classic DME process is greatly influenced by the distillation towers and operating costs. Accordingly, to solve these problems an innovative DME process based on a top-wall dividing-wall column (DWC) in vapor phase is proposed, in this work. It is shown that the novel proposed DWC process leads to 44.53% reduction in operating costs compared to the conventional one, while both schemes predict almost the same output specifications. © 2013 Elsevier B.V. All rights reserved.


Massaeli A.,National Iranian Gas Company
IEOM 2015 - 5th International Conference on Industrial Engineering and Operations Management, Proceeding | Year: 2015

The failure analysis and management has a strategic dimension from the financial, technical, engineering, social and economical viewpoint in oil and gas industries all around the world. Nowadays using the methodical and algorithms for possible automatic approach for managing of failure data has key role in technical inspection records of world-class companies, and it can make essential improvement in work-flows and in the decision-making processes. © 2015 IEEE.


Tavan Y.,National Iranian Gas Company
Journal of Natural Gas Science and Engineering | Year: 2014

The azeotropes are always considered as a serious problem in chemical industries and most of the published researches on the subject of CO2-ethane azeotropic process are focused on distillation columns and heat exchangers, in order to separate these components. The present study is aimed to remove this azeotrope with the help of reaction and the azeotropic mixture is introduced to an industrial reformer to produce syngas (H2 and CO), as a novel work. In order to simulate reforming process, two dimensional mathematical modeling is proposed and coke formation as main problem of reforming process is thermodynamically investigated. © 2014 Elsevier B.V.


Tavan Y.,National Iranian Gas Company
Energy Conversion and Management | Year: 2014

Two-dimensional mathematical model is used for natural gas reforming to produce syngas. It is seen that coke formation by the Boudouard reaction is significant in entrance of the reactor and the maximum temperature gradient between the bed centerline and the wall is predicted to be 350 K. In order to reduce carbon filament formation and to avoid tube failure, heating value of the combustible fluid is increased to 15.5% by introducing ethane component as combustible fluid and the results show a better performance for reforming process in terms of lower coking and lower tube failure as compared to the industrial conditions. © 2014 Elsevier Ltd. All rights reserved.


Alavinia S.M.,National Iranian Gas Company
Proceedings of 2015 IEEE International Conference on Electrical, Computer and Communication Technologies, ICECCT 2015 | Year: 2015

In this paper, sensor fault detection technique based on support vector regression (SVR) method is used for unreal surge suppressing in the centrifugal gas compressor. No work has previously been reported on the use of fault diagnosis (FD) within compressor surge suppressing system. The main contribution of this paper is to present an innovative technique based on analytical redundancy approach for unreal surge avoidance studies via sensor FD. The implementation of this technique is useful to prevent performance deterioration, major collapses in the centrifugal gas compressordue to undesirable surge. Using the experimental data and simulation studies, the effectiveness of the proposed FD scheme is verified. © 2015 IEEE.

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