A comparative performance evaluation of cubic equations of state for predicting the compositional distribution of hydrate inhibitors in reservoir fluid systems

Epelle, Emmanuel I.; Oyinbo, John O.; Okolie, Jude A.; Gerogiorgis, Dimitrios I.

doi:10.1016/j.fluid.2021.112964

Cited by 3 publications

(2 citation statements)

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“…The inclusion of the associating term helps to accurately simulate the interactions because of hydrogen bonding in polar compounds between the same molecules (self-association) and unlike molecules (cross-association). The literature also shows the superiority of the CPA model over PR and SRK in terms of calculation reliability and accuracy. , In conclusion, the simulation approach is reliable to accurately forecast the process and thermodynamic behaviors of the industrial plant. The CPA EOS simulation results are used and needed for the exergy analysis research phase.…”

Section: Results and Discussionmentioning

confidence: 86%

“…The literature also shows the superiority of the CPA model over PR and SRK in terms of calculation reliability and accuracy. 50,51 In conclusion, the simulation approach is reliable to accurately forecast the process and thermodynamic behaviors of the industrial plant. The CPA EOS simulation results are used and needed for the exergy analysis research phase.…”

Section: Resultsmentioning

confidence: 95%

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Performance Analysis and Simulation of the Gas Condensate Stabilization Process: Energy and Exergy Aspects

Hajizadeh

Mohamadi‐Baghmolaei

Azin

et al. 2022

Ind. Eng. Chem. Res.

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Gas condensate stabilization is a common process in gas refineries and petrochemical industries. This process is known as an energy consuming process because it uses distillation columns and furnaces for separating different cuts from the condensate feed. This study aims to improve the performance of the gas condensate stabilization unit in a large petrochemical company in terms of energy efficiency and loss prevention. The case study considered in this work is the gas condensate stabilization unit in the Nouri Petrochemical Company, treating 568 t/h of raw condensate feed. This plant includes two distillation columns, two furnaces, several pumps, heat exchangers, and air coolers. A hybrid energy and exergy analysis is conducted in this study. First, the validation of the simulation phase is performed. We then conduct a parametric sensitivity analysis to explore the effects of various parameters, such as operating temperature and pressure on the process performance. After that, the most influential variables are identified using a thermodynamic analysis for optimization and design purposes. An optimization method is employed to attain the maximum production improvement and exergy efficiency. The exergy analysis shows 187.4 MW total exergy destruction in the plant; the furnaces account for 79% of the total exergy destruction. The energy consumption of the process could be reduced by 33.7 MW, which leads to an 18% reduction in the energy consumption of the plant. The optimal process conditions outperform the current and design states in terms of exergy efficiency (4.6% improvement in exergy efficiency). The fuel gas consumption is reduced by 2.1 t/h, leading to a reduction of 136.8 t/d CO 2 emissions. The economic evaluation reveals that 7.3 × 10 5 USD/h could be saved at the optimum conditions. The current study could offer a proper platform for improving the energy efficiency of similar plants.

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Section: Results and Discussionmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 95%