Estimation of Greenhouse Gas Emissions in two Refineries of Hasheminejad and Fajr Jam and Providing Operational Solutions to Reduce Emissions

Document Type : Review Paper

Authors
Kazem Kashefi 1
Tohid Nodle 2
Fatemeh Goodarzvand-Chegini 3
Fatemeh Zajakaniha 4
Ali Asghar Mahjoubi 5
1 Optimization & Development of Energy Technologies Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
2 Renewable Energy Company of Mehr, Tehran, Iran
3 Optimization & Development of Energy Technologies Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
4 Research and Technology Management of National Iranian Gas Company, Tehran, Iran
5 Hasheminejad Gas Refining Company,, Sarakhs, Mashhad, Iran
Abstract
Nowadays, natural gas refineries have been developed to purify natural gas and optimize the extractive gas properties of gas wells for various uses, such as home use. Each gas refinery is composed of a set of process units, each of which can be a factor in the emission of greenhouse gases into the environment. Therefore, the purpose of this paper is to first study and estimates the greenhouse gas emissions of the process units in the two refineries of Shahid Hasheminejad and Fajr Jam and then provides solutions to improve performance and reduce carbon dioxide emissions in these refineries. Generally, greenhouse gas emission sources are divided into three sections: combustion, process and fugitive emissions. In the combustion section, four mass balance methods (based on the amount and composition of fuel), stack outlet gas analysis method, stack outlet gas analysis method and general propagation coefficient method have been used for both refineries. Comparison of the results of these four methods for boilers in these two refineries shows the mass balance method will result in more accurate results in calculating the CO2 emission and emission factor for the calculation of the CH4 emission. Also, the fugitive emission related to equipment leakage of wastewater treatment process related to these two refineries has been estimated. The results of the estimation of greenhouse gas emissions in these two refineries show that the flaring of gases, carbon dioxide in the raw gas entering the refinery and fuel consumption in the energy conversion equipment are three main sources of greenhouse gas emissions. Therefore, 11 projects to improve the efficiency and reduce carbon dioxide emissions in these two refineries have been presented around the flaring reduction, improving energy efficiency (in all three sectors of production, transmission and consumption), and CO2 capture from exhaust gases from the stack of furnace.

Keywords

Subjects

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Iranian Journal of Gas Engineering
Volume 5, Issue 2 - Serial Number 8
February 2019
Pages 68-80

  • Receive Date 24 April 2022