Abstract I n this paper we investigated total energy consumption and its individual forms (oil, natural gas, electricity, renewable energies and coal) relationship with real gross domestic product (GDP) in Iran. We employed Hsiao’s (1981) methodology and annual data which cover 1967-2010 for investigation. The empirical findings indicate there is bidirectional causality ef...

In recent years, lots of research has been done on effective usage of natural gas; the first step in these processes is conversion of natural gas to Syngas. Natural gas reforming process by refomer furnace is commonly used for syngas and hydrogen production. In this paper, a windows based software, RIPI-RefSim, is introduced. By using proper heat, mass, kinetic and thermodynamic models as w...

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...

Following the tendency of sustainable development, compressed natural gas as an alternative fuel has been expanded applied in transportation sector these years. Although several studies on life cycle are quite comprehensive for passenger vehicles, it is problematic to apply results heavy-duty electric hybrid trucks. This study applies Well-to-Wheel methodology fuel. The optimized truck model bu...

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...

The process of formation and deposition gas hydrates on the walls a well during its joint operation with reservoir heat exchange environment is modeled. problem reduced to solving differential equations describing non- isothermal flow an imperfect both in porous medium well, propagation rocks appropriate coupling conditions. It shown that for wells temperature significantly exceeding equilibriu...