Energy, exergy, economic, and environmental analysis of natural gas sweetening process using lean vapor compression: a comparison study
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Xiujun Sun
und
Lizhi Yuan
Abstract
Gas sweetening with an aqueous solution of diethanolamine is a crucial and common process in natural gas processing. However, the process, particularly in the solvent regeneration section, consumes a substantial amount of energy, significantly escalating the cost of gas. This paper presents a simulation and optimization of an existing natural gas refinery plant using a lean vapor compression method. The simulation results indicate that the current process requires 2.73 GJ/tacid gas for solvent regeneration, with exergy destruction of 14,120.59 kW in the solvent regeneration section. The total annualized cost for the current process is 11.68 M$. A modified scheme is proposed to address the issue of high energy consumption and the associated costs. The proposed scheme demonstrates significant improvements in the aforementioned parameters. Specifically, energy for solvent regeneration, exergy destruction in the solvent regeneration section, total annualized cost, and cost of gas are reduced by 16.12 %, 25.04 %, 20.97 %, and 20 % compared to the current process, respectively. These improvements enhance the thermoeconomic indexes, making the proposed scheme a viable and cost-effective alternative to the current process.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and its submission.
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Competing interests: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: The raw data can be obtained on request from the corresponding author.
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Supplementary Material
This article contains supplementary material (https://doi.org/10.1515/cppm-2023-0040).
© 2023 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Numerical investigation of liquid mass fraction and condensation shock of wet-steam flow through convergence-divergence nozzle using strategic water droplets injection
- Energy, exergy, economic, and environmental analysis of natural gas sweetening process using lean vapor compression: a comparison study
- Enhancing heat transfer in tube heat exchanger containing water/Cu nanofluid by using turbulator
- Development of a superstructure optimization framework with heat integration for the production of biodiesel
- Smith predictor based fractional order controller design for improved performance and robustness of unstable FOPTD processes
- Kinetic studies and dynamic modeling of sophorolipids production by Candida catenulata using different carbon sources
- Modeling of reaction–desorption process by core–shell particles dispersed in continuously stirred tank reactor (CSTR)
- Mathematical modeling and evaluation of permeation and membrane separation performance for Fischer–Tropsch products in a hydrophilic membrane reactor
- Hydrodynamic simulation-informed compartment modelling of an annular centrifugal contactor
- Short Communication
- Simulation of single-effect and triple-effect evaporator for fruit juice concentration using Aspen HYSYS
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Numerical investigation of liquid mass fraction and condensation shock of wet-steam flow through convergence-divergence nozzle using strategic water droplets injection
- Energy, exergy, economic, and environmental analysis of natural gas sweetening process using lean vapor compression: a comparison study
- Enhancing heat transfer in tube heat exchanger containing water/Cu nanofluid by using turbulator
- Development of a superstructure optimization framework with heat integration for the production of biodiesel
- Smith predictor based fractional order controller design for improved performance and robustness of unstable FOPTD processes
- Kinetic studies and dynamic modeling of sophorolipids production by Candida catenulata using different carbon sources
- Modeling of reaction–desorption process by core–shell particles dispersed in continuously stirred tank reactor (CSTR)
- Mathematical modeling and evaluation of permeation and membrane separation performance for Fischer–Tropsch products in a hydrophilic membrane reactor
- Hydrodynamic simulation-informed compartment modelling of an annular centrifugal contactor
- Short Communication
- Simulation of single-effect and triple-effect evaporator for fruit juice concentration using Aspen HYSYS
