Chemical and Combustion Analysis of IRAN Natural Gas with Emission Level

Natural Gas resources in Iran are located in wide range of area .We divided Natural Gas resources in Iran into 3 categories according to the zone of extraction The quality of Natural Gas in each of these zones differs from each other .It’s better to know which zone of our country has the most appropriate of Natur al Gas in quality for Internal Combustion Engines and other zones with less quality for domestic uses and export .Also it’s useful to know the combustion characteristics of Natural Gas from each zone of our country and rate of its air pollution in Internal Combustion Engines at different conditions .In this paper ,the Natural Gases of Iran are classified upon their chemical properties and heat rate and air pollution level in Internal Combustion Engines with the aid of governing equation and computer simulat ion from reference (8),we obtained Mean Octant Number and heating value per unit volume of Natural Gas extracted in each zone .Next we calculated heating value of Natural Gas per unit mass in each zone .It is found that the quality of Natural Gas from Nor thern and East-Northern zone of our country (called zone 3)has advantages for application in Internal Combustion Engines .