Exergy, advance exergy, and exergo-environmental based assessment of alkanol amine- and piperazine-based solvents for natural gas purification

Kazmi, Bilal; Taqvi, Syed Ali Ammar; Raza, Faizan; Haider, Junaid; Naqvi, Salman Raza; Khan, Muhammad Saad; Ali, Abulhassan

doi:10.1016/j.chemosphere.2022.136001

Cited by 19 publications

(5 citation statements)

References 40 publications

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“…The models include vapor–liquid equilibrium computations together with formulas for material and heat balances. ,, However, rate-based models investigate mass and heat transfer events by considering the tray geometry, concentration gradients between the interacting phases, and transport characteristics. As a result, rate-based models provide outcomes highly consistent with empirical data, making it possible to forecast process parameters over a wide range of operating conditions. , …”

Section: Simulation Basismentioning

confidence: 80%

“…As a result, rate-based models provide outcomes highly consistent with empirical data, making it possible to forecast process parameters over a wide range of operating conditions. 23,41 The sour feed gas at 35 °C was introduced into the bottom of the absorber and encountered the lean hybrid solvent mixture countercurrently. The absorber, which had 17 trays numbered sequentially from top to bottom, was used in the current study.…”

Section: Simulation Basismentioning

confidence: 99%

Section: Simulation Basismentioning

confidence: 99%

“…Hybrid solution that effectively removes acidic gases by utilizing the advantages of physical or chemical solvents in various ways . These advantages include the ability to absorb CO 2 without being limited by stoichiometry, the ability to yield a higher purity for treated gas, lower circulation flow rate and energy requirements for regenerating the solution, reduced costs of gas pressure amplification by avoiding hydrate formation at low temperatures, and control of corrosion and contaminant dispersion within permissible limits. − …”

Section: Introductionmentioning

confidence: 99%

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Removal of Carbon Dioxide and Hydrogen Sulfide from Natural Gas Using a Hybrid Solvent of Monoethanolamine and N-Methyl 2-Pyrrolidone

Farooqi,

Ramli,

Lock

et al. 2024

ACS Omega

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The main goal of traditional methods for sweetening natural gas (NG) is to remove hydrogen sulfide (H 2 S) and significantly lower carbon dioxide (CO 2 ). However, when NG processes are integrated into the carbon capture and storage (CCS) framework, there is potential for synergy between these two technologies. A steady-state model utilizing a hybrid solvent consisting of N-methyl-2-pyrrolidone (NMP) and monoethanolamine (MEA) has been developed to successfully anticipate the CO 2 and H 2 S capture process from NG. The model was tested against important variables affecting process performance. This article specifically explores the impact of operational parameters such as lean amine temperature, absorber pressure, and amine flow rate on the concentrations of CO 2 and H 2 S in the sweet gas and reboiler duty. The result shows that hybrid solvents (MEA + NMP) perform better in removing acid gases and reducing reboiler duty than conventional chemical solvent MEA. The primary purpose is to meet product requirements while consuming the least energy possible, which is in line with any process plant's efficiency goals.

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Section: Simulation Basismentioning

confidence: 80%

Section: Simulation Basismentioning

confidence: 99%

Section: Simulation Basismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Removal of Carbon Dioxide and Hydrogen Sulfide from Natural Gas Using a Hybrid Solvent of Monoethanolamine and N-Methyl 2-Pyrrolidone

Farooqi,

Ramli,

Lock

et al. 2024

ACS Omega

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“…The effect is enhanced with increasing temperature. [28,29] The production of light hydrocarbons ( C1-C3 ) gradually increased with increasing temperature, mainly due to the dissociation of C-C bonds. With the increase in temperature, methoxy ( AOCH3 ), methyl ( ACH3 ), and methylene ( ACH2A ) in OBDC decompose to produce CH4 [30].…”

Section: Figure 4 Gas Product Yield Of Obdc Pyrolysis Experimentsmentioning

confidence: 99%

Study on pyrolysis law of shale gas oil-based drilling cuttings : kinetics and product characteristics

Liu,

Li,

et al. 2024

Preprint

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oil-based cuttings(OBDC)is a typical hazardous waste produced in the process of shale gas field development, and pyrolysis has been proved to be an effective treatment method, that can recover the harmful components and achieve resource reuse. In this paper, thermogravimetric experiments were carried out to study the pyrolysis kinetics, and the effects of pyrolysis temperature on the gas phase yield, oil quality and solid phase heavy metal migration were analyzed. The results show that the pyrolysis of OBDC is divided into three stages, and the light hydrocarbon cracking stage is the key control step of the pyrolysis process. In addition, the maximum weight loss rate of the sample with high heating rate appears at a higher temperature. Friedman (FM), Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS), Starink conversion methods can well fit the weight loss curve, and the estimated average activation energy is 185.5,184.16,166.17 and 176.03 kJ / mol, respectively. The estimated values are close and more accurate. The activation energy increases with the deepening of the reaction process. The solid phase products after pyrolysis accounted for more than 70% of the main products. The pyrolysis temperature had a great influence on the liquid phase yield, and the oil phase yield decreased by 1.17% from 450°C to 500°C. In the recovered mineral oil before and after pyrolysis: C15 ~ C28 pyrolysis C10 ~ C14 increased by 2.89%, C15 ~ C28 volatilization decreased by 3.26%, and high temperature aging increased C29 ~ C36 by 0.63%; aromatic hydrocarbons, as the coking parent, change from low ring to high ring. In addition, the content of heavy metals in the residue increased after pyrolysis, and more heavy metals were enriched in the residue. This study is helpful for the solidification of heavy metals and the recycling of solid waste, which is conducive to reducing energy and resource consumption and improving the processing technology of production.

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Natural gas sweetening standards, policies, and regulations

Khan,

Taqvi

2024

Advances in Natural Gas: Formation, Processing, and Applications. Volume 2: Natural Gas Sweetening

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Exergy, advance exergy, and exergo-environmental based assessment of alkanol amine- and piperazine-based solvents for natural gas purification

Cited by 19 publications

References 40 publications

Removal of Carbon Dioxide and Hydrogen Sulfide from Natural Gas Using a Hybrid Solvent of Monoethanolamine and N-Methyl 2-Pyrrolidone

Removal of Carbon Dioxide and Hydrogen Sulfide from Natural Gas Using a Hybrid Solvent of Monoethanolamine and N-Methyl 2-Pyrrolidone

Study on pyrolysis law of shale gas oil-based drilling cuttings : kinetics and product characteristics

Natural gas sweetening standards, policies, and regulations

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