Thermodynamic Introduction Of A Triple Generation System Using Flared Gases In An Oil Field

Considering the non-renewability of fossil energies and the importance of their value, as well as the increase in the level of greenhouse gases and carbon dioxide (more than ۲۵۰ types of toxic substances are released into the atmosphere in this way), it is necessary to avoid waste in the matter of saving and the optimal consumption of energy should be applied more carefully. The main way of wasting energy in refineries and oil and gas wells is the flaring system, which is where most of the environmental pollutants are released from this system. Nowadays, simultaneous production cycles have been noticed due to higher efficiency and less pollution. In this regard, a new triple simultaneous production cycle has been presented. Nowadays, it is very common to use more efficient systems. Recovering the heat of flare gases is a method to use the waste energy and helps the development of the industries. Recovered flare gases can be applied in the downstream energy sources for the generation of useful productions. In this thesis, a trigeneration system is investigated to recover the flare gases of the oil fields. Subsystems were studied, including the gas turbine, ORC cycle, double-effect absorption refrigeration cycle, and the PEM unit to produce power, cooling, and hydrogen. The effect of different parameters on the efficiency of the first and second laws, the net produced power, the amount of cooling effect, and the hydrogen production rate in the trigeneration system was investigated, and the amount of exergy destruction in each component was also calculated. All the calculations are performed by using EES software. After a comprehensive analysis, it is found that the total amount of power produced by the proposed cycle is ۶۹۱۷۶ kW, and the amount of hydrogen generated by the system is ۰.۱۴۷ kg/s.

کلیدواژه ها:

Oil field ، oil platform ، flaming gas ، flare gases ، gas recovery