Mathematical modeling and numerical simulation of CO2 capture using MDEA-based nanofluids in nanostructure membranes

Cao, Yan; Alizadeh, Seyed Mehdi Seyed; Fouladvand, Mohammad Taghi; Khan, Afrasyab; Nakhjiri, Ali Taghvaie; Heidari, Zahra; Pelalak, Rasool; Kurniawan, Tonni Agustiono; Albadarin, Ahmad B.

doi:10.1016/j.psep.2021.03.007

Cited by 37 publications

(7 citation statements)

References 64 publications

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“…7. There is no difference in recovery at a reflux ratio of ten because the greater reflux ratio counteracts the effects of risen boil-up 44 . www.nature.com/scientificreports/ Effect of temperature on TDO, limonene and gases.…”

Section: Effect Of Stagementioning

confidence: 99%

“…It should be noted that in the software of Aspen Plus, equilibrium reaction models (kinetic free) were used to simulate the pyrolysis process as well as the gasification of polymers, coal, biomass, and tire feeds [42][43][44] . However, the classification of products of the pyrolysis process was not performed in the developed model and was not related to the design equations of the process.…”

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confidence: 99%

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Modelling and simulation of waste tire pyrolysis process for recovery of energy and production of valuable chemicals (BTEX)

Cao

Nakhjiri

Sarkar³

2023

Sci Rep

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The pyrolysis oil fraction is highly attractive for pyrolysis products. A simulated flowsheet model of a waste tire pyrolysis process is presented in this paper. A kinetic rate-based reaction model and equilibrium separation model are created in the Aspen Plus simulation package. The simulation model is effectively proven against experimental data of literature at temperatures of 400, 450, 500, 600 and 700 °C. Also, the developed model was employed to investigate the impact of temperature on the pyrolysis procedure and demonstrated that there is an optimum temperature for chain fractions. The optimum temperature to have the highest amount of limonene (as a precious chemical product of waste tire pyrolysis process) was found 500 °C. The findings indicated that the pyrolysis process is ecologically benign, although there is still space for development. In addition, a sensitivity analysis was carried out to see how altering the heating fuel in the process would affect the non-condensable gases produced in the process. Reactors and distillation columns in the Aspen Plus® simulation model was developed to assess the technical functioning of the process (e.g., upgrading the waste tires into limonene). Furthermore, this work focuses on the optimization of the operating and structure parameters of the distillation columns in the product separation unit. The PR-BM, as well as NRTL property models, were applied in the simulation model. The calculation of non-conventional components in the model was determined using HCOALGEN and DCOALIGT property models.

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Section: Effect Of Stagementioning

confidence: 99%

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confidence: 99%

Modelling and simulation of waste tire pyrolysis process for recovery of energy and production of valuable chemicals (BTEX)

Cao

Nakhjiri

Sarkar³

2023

Sci Rep

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“…Membrane-based gas absorption using microporous hollow fiber membrane contactor (HFMC) is known as a trustworthy alternative for prevalent separation processes of greenhouse gases such as cryogenic distillation, packed bed tower, spray tower and adsorption [10][11][12][13][14] . HFMCs have been recently of great interest as a mass transfer device due to having disparate advantages like constant interfacial areas, flexibility of operation, and simplicity of scale-up and independent adjustment of gas/ liquid streams [15][16][17][18] .…”

Section: Computational Fluid Dynamics Comparison Of Prevalent Liquid ...mentioning

confidence: 99%

“…The important role of membrane materials in the separation of acidic pollutants is incontrovertible. In recent years, polypropylene (PP), polyvinylidene fluoride (PVDF), polyether sulfone (PSf) and polytetrafluoroethylene (PTFE) are among the most commonly-employed materials for fabricating hydrophobic membranes 13,[19][20][21][22][23] . True selection of chemical absorbent is an important responsibility of researchers and scientists to improve the efficiency of greenhouse gases separation.…”

Section: Computational Fluid Dynamics Comparison Of Prevalent Liquid ...mentioning

confidence: 99%

Computational fluid dynamics comparison of prevalent liquid absorbents for the separation of SO2 acidic pollutant inside a membrane contactor

Cao

Nakhjiri

Ghadiri

2023

Sci Rep

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In recent years, the emission of detrimental acidic pollutants to the atmosphere has raised the concerns of scientists. Sulphur dioxide (SO2) is a harmful greenhouse gas, which its abnormal release to the atmosphere may cause far-ranging environmental and health effects like acid rain and respiratory problems. Therefore, finding promising techniques to alleviate the emission of this greenhouse gas may be of great urgency towards environmental protection. This paper aims to evaluate the potential of three novel absorbents (seawater (H2O), dimethyl aniline (DMA) and sodium hydroxide (NaOH) to separate SO2 acidic pollutant from SO2/air gaseous stream inside the hollow fiber membrane contactor (HFMC). To reach this goal, a CFD-based simulation was developed to predict the results. Also, a mathematical model was applied to theoretically evaluate the transport equations in different compartments of contactor. Comparison of the results has implied seawater is the most efficient liquid absorbent for separating SO2. After seawater, NaOH and DMA are placed at the second and third rank (99.36% separation using seawater > 62% separation using NaOH > 55% separation using DMA). Additionally, the influence of operational parameters (i.e., gas and liquid flow rates) and also membrane/module parameters (i.e., length of membrane module, hollow fibers’ number and porosity) on the SO2 separation percentage is investigated as another highlight of this paper.

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“…Due to the adverse ecological impacts of greenhouse gases (GHG), such as global warming and climate change; thus, the emission and synthesis of GHGs have become a severe problem worldwide [1,2,3]. One of the most significant gases among GHGs is carbon dioxide [4]; the conventional carbon dioxide concentration in the stream of flue gases from different sources is listed in Table 1; carbon dioxide accounts for 76% of all GHGs globally [5].…”

Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Capturing via a Randomly Packed Bed Scrubber Using Primary and Poly Amine Absorbents

Dhuyool,

Shakir

2023

J. Ecol. Eng.

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Greenhouse gases (GHGs) cause global warming and climate change, making their emission and synthesis a global issue. Employing a pilot-scale scrubber packed with a Rashing ring randomly, where experimentally examined the absorption performance of carbon dioxide capturing by using an aqueous solvent of primary and poly alkanol amines; the investigations on carbon dioxide capturing were carried out at atmospheric pressure (1 atm), using simulated feed gas of carbon dioxide balanced with nitrogen. Monoethanolamine, Triethylenetetramine, and Diethylenetriamine are the primary and poly alkanol amine absorbents examined for this work. The impact of operating conditions, including amine inlet concentrations, liquid flow rates, gas flow rate, lean amine loading, inlet carbon dioxide concentration, absorbent temperature, and alkanol amine type, were examined according to the two-film concept. Regarding the removal of carbon dioxide efficiency and volumetric mass transfer coefficient based on the gas side, the absorption performance was presented. A lab-scale investigation revealed that employing DETA absorbent possesses higher carbon dioxide removal efficiency of up to 28.9% and a higher coefficient of mass transfer of up to 165.7% in comparison to conventional MEA absorbent while employing TETA absorbent possesses higher carbon dioxide removal efficiency of up to 18.86% and higher coefficient of mass transfer of up to 69.64% in comparison to the conventional MEA absorbent. Based on these findings, it is reasonable to assume that DETA would serve as an efficient chemical absorbent for the removal of carbon dioxide.

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Mathematical modeling and numerical simulation of CO2 capture using MDEA-based nanofluids in nanostructure membranes

Cited by 37 publications

References 64 publications

Modelling and simulation of waste tire pyrolysis process for recovery of energy and production of valuable chemicals (BTEX)

Modelling and simulation of waste tire pyrolysis process for recovery of energy and production of valuable chemicals (BTEX)

Computational fluid dynamics comparison of prevalent liquid absorbents for the separation of SO2 acidic pollutant inside a membrane contactor

Carbon Dioxide Capturing via a Randomly Packed Bed Scrubber Using Primary and Poly Amine Absorbents

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