چكيده به لاتين
The industrial revolution and the growing growth of various industries have resulted in the
production and distribution of greenhouse gases and gases. In recent years, researchers have
been paying close attention to air pollution through combustion gases and are trying to reduce
it. The flue gases are NOx, CO, SO2, CO2. The disposal of petroleum by-products, especially
water produced by heavy and uranium-containing compounds, has also had many problems.
One way is to inject this produced water into the underground layers. Carbon dioxide removal
and storage is a strategy to reduce greenhouse gas emissions. The water produced from the
reservoir contains various solutes and dissolved salts. The most common salts present in saline
water are NaCl, KCl, MgCl2, CaCl2. In this study, the thermodynamic modeling of equilibrium
gases from combustion at the power plant and construction water is investigated. The aim is to
investigate the ability of underground layers of water to produce these gases in the liquid phase.
In this thesis, the equation of state based on the perturbation chain statistical theory (SAFT) is
used to calculate the fuzzy properties such as density and pressure of electrolyte solutions. The
equation of state presented applies to a large set of salts. In fact, the electrolyte equation of
state presented is a combination of the PC-SAFT equation of state and Debye-Huckel theory
called the ePC-SAFT equation of state and the presence of repulsion, dispersion, and
association intermolecular forces are calculated by the PC-SAFT equation of state and
electrostatic forces are computed by Debye-Huckel theory.
Because of the mathematical complexity of the state equation, the model was first used for pure
materials And then the model was developed step-by-step for more complex systems such as
mixtures containing non-associated materials, association, and electrolytes. The parameters of
the equation of state include the number of segments, segment diameter, dispersion energy,
association volume, and association energy. The last two parameters are only applicable to the
hydrogen-bonded association. In this research, the state equation validation for non-association
pure materials systems was performed by the simulated annealing optimization algorithm
Subsequently, binary systems were investigated. Then the binary interaction coefficients of
different gaseous molecules with water were adjusted. Finally, the equilibrium between the
combustion gases and the formation water was investigated. Evaluation of the model results
with the experimental data shows that the equilibrium of the gases in the gas resulting from the
combustion of the plant with water containing different salts by the flash algorithm calculated
by the model is in good agreement with the laboratory data.
