Conceptual design of water separation process in glycerol-based acrylic acid production

Song, Daesung; Yang, Jae-Hyeon; Lee, Chul‐Jin

doi:10.1016/j.cherd.2020.01.036

Cited by 14 publications

(9 citation statements)

References 22 publications

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“…The CO gas has a higher heating value (HHV) of 4.368 MJ/kg [53]. Since it is not possible to separate AA from water via conventional distillation because of the formation of a minimum boiling azeotrope [54], an extractive distillation approach is employed [55]. Several organic solvents have been reported in the literature for AA extraction from an aqueous solution.…”

Section: Process Descriptionmentioning

confidence: 99%

Waste Apple Pomace Conversion to Acrylic Acid: Economic and Potential Environmental Impact Assessments

et al. 2022

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The global demand for acrylic acid (AA) is increasing due to its wide range of applications. Due to this growing demand, alternative AA production strategies must be explored to avoid the exacerbation of prevailing climate and global warming issues since current AA production strategies involve fossil resources. Investigations regarding alternative strategies for AA production therefore constitute an important research interest. The present study assesses waste apple pomace (WAP) as a feedstock for sustainable AA production. To undertake this assessment, process models based on two production pathways were designed, modelled and simulated in ASPEN plus® software. The two competing production pathways investigated included a process incorporating WAP conversion to lactic acid (LA) prior to LA dehydration to generate AA (denoted as the fermentation–dehydration, i.e., FD, pathway) and another process involving WAP conversion to propylene prior to propylene oxidation to generate AA (denoted as the thermochemical–fermentation–oxidation, i.e., TFO, pathway). Economic performance and potential environmental impact of the FD and TFO pathways were assessed using the metrics of minimum selling price (MSP) and potential environmental impacts per h (PEI/h). The study showed that the FD pathway presented an improved economic performance (MSP of AA: USD 1.17 per kg) compared to the economic performance (MSP of AA: USD 1.56 per kg) of the TFO pathway. Crucially, the TFO process was determined to present an improved environmental performance (2.07 kPEI/h) compared to the environmental performance of the FD process (8.72 kPEI/h). These observations suggested that the selection of the preferred AA production pathway or process will require a tradeoff between economic and environmental performance measures via the integration of a multicriteria decision assessment in future work.

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Section: Process Descriptionmentioning

confidence: 99%

Waste Apple Pomace Conversion to Acrylic Acid: Economic and Potential Environmental Impact Assessments

et al. 2022

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“…The CO gas has a higher heating value (HHV) of 4.368 MJ/kg[55]. Since it is not possible to separate AA from water via conventional distillation or rectification because of the formation of a minimum boiling azeotrope [56], an extractive distillation approach is employed [57]. Several organic solvents have been reported in the literature for AA extraction from an aqueous solution.…”

Section: Process Descriptionmentioning

confidence: 99%

“…Several organic solvents have been reported in the literature for AA extraction from an aqueous solution. These solvents include diisopropyl ether, isopropylacetate, methylisobutyl ketone and toluene [57]. Song et al, [57] however recommended toluene as the preferred solvent for the extraction when the combined effects of extraction capacity and solvent cost are considered.…”

Section: Process Descriptionmentioning

confidence: 99%

“…These solvents include diisopropyl ether, isopropylacetate, methylisobutyl ketone and toluene [57]. Song et al, [57] however recommended toluene as the preferred solvent for the extraction when the combined effects of extraction capacity and solvent cost are considered. In the present simulation, toluene is therefore employed to facilitate AA extraction.…”

Section: Process Descriptionmentioning

confidence: 99%

“…In the present simulation, toluene is therefore employed to facilitate AA extraction. In this approach the stream exiting the dehydration reactor is rapidly cooled to 25 o C using a quencher to reduce the risk of polymerization of AA, after which the mixture is fed to a liquid-liquid extractor, with toluene as the solvent to facilitate the separation of aqueous components from AA [57]. The toluene-AA steam is then distilled to facilitate solvent recovery with associated AA generated as the bottom stream [56].…”

Section: Process Descriptionmentioning

confidence: 99%

See 2 more Smart Citations

Waste apple pomace conversion to acrylic acid: Economic and environmental assessment

Okoro

Alimoradi

Shavandi

2021

Preprint

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The global demand for acrylic acid (AA) is increasing due to its wide range of applications. Due to this growing demand, alternative AA production strategies must be explored to avoid the exacerbation of prevailing climate and global warming issues since current AA production strategies involve AA production using fossil resources. Investigations on alternative strategies for AA production therefore constitute an important research interest. The present study therefore assesses waste apple pomace (WAP) as a feedstock for the sustainable AA produc-tion. To undertake this assessment, process models, based on two production pathways were designed, modelled and simulated in ASPEN plus® software. The two competing production pathways investigated include a process incorporating WAP conversion to lactic acid (LA), prior to LA dehydration to generate AA (denoted as the FD pathway) and another process involving WAP conversion to propylene, prior to propylene oxidation to generate AA (denoted as the TFO pathway). Economic and environmental performances of the FD and TFO pathways were assessed via the minimum selling price (MSP) and potential environmental impacts per h (PEI/h) metrics. The study was able to show that the FD pathway presented an improved economic performance (MSP of AA: US $1.17 per kg) performance compared to the economic performance (MSP of AA: US $1.56 per kg) of the TFO pathway. Crucially, the TFO process was shown to present an improved environmental performance (2.07 kPEI/h) compared to the environmental performance of the FD process (8.72 kPEI/h). These observations sug-gests that the selection of the preferred AA production will require a trade-off between the performance measures, and the integration of a multi-criteria decision assessment in future work.

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A review on bi/multifunctional catalytic oxydehydration of bioglycerol to acrylic acid: Catalyst type, kinetics, and reaction mechanism

Abdullah

Ahmed

et al. 2021

Can J Chem Eng

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Acrylic acid, conventionally produced via propylene (non‐renewable fossil fuel route), is an industrially important chemical. The bio‐based feedstock process employing glycerol (a by‐product of biodiesel production) has attracted the attention of researchers due to its non‐polluting and renewable characteristics. Bi/multifunctional catalysts using a combination of zeolites, metal oxides, heteropoly acids, and phosphates have been mainly studied for the glycerol oxydehydration process. Brønsted acid sites favour acrolein generation over Lewis acid sites, whereas the redox sites convert the generated acrolein to acrylic acid. So far, the maximum acrylic acid yields of 60% and 59% have been reported on heteropoly acid and mixed metal oxide catalysts, respectively. Some DFT studies also revealed the deprotonation energy of acid sites and further helped in designing efficient catalysts. Despite these accomplishments, catalyst deactivation because of coking and stability remains a major problem. In this paper, various bi/multifunctional catalysts employed in glycerol oxydehydration to acrylic acid are critically reviewed. Different catalyst forms, preparation techniques, reaction kinetics, reaction mechanisms, deactivation, reactivation, process operating parameters, and sustainability are considered. In addition, the challenges associated with each catalyst type and strategies to overcome low yield, deactivation, and future directions are discussed.

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Conceptual design of water separation process in glycerol-based acrylic acid production

Cited by 14 publications

References 22 publications

Waste Apple Pomace Conversion to Acrylic Acid: Economic and Potential Environmental Impact Assessments

Waste Apple Pomace Conversion to Acrylic Acid: Economic and Potential Environmental Impact Assessments

Waste apple pomace conversion to acrylic acid: Economic and environmental assessment

A review on bi/multifunctional catalytic oxydehydration of bioglycerol to acrylic acid: Catalyst type, kinetics, and reaction mechanism

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