Bioderived furanic compounds as replacements for BTX in chemical intermediate applications

Ghatta, Amir Al; Hallett, Jason P.

doi:10.1039/d3su00038a

Cited by 4 publications

(3 citation statements)

References 641 publications

(1,042 reference statements)

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“…The functional unit is “the production of 1 kg of mono-aromatics BTX”, and the system boundary was set to cradle-to-grave, including CO 2 end-of-life emissions. BTX as a platform chemical has many applications . Therefore, we accounted for CO 2 emissions by means of incineration, based on the chemical structure of BTX, but left all other waste treatment processes and emissions outside the system boundary.…”

Section: Methodsmentioning

confidence: 99%

“…BTX as a platform chemical has many applications. 24 Therefore, we accounted for CO 2 emissions by means of incineration, based on the chemical structure of BTX, but left all other waste treatment processes and emissions outside the system boundary. We included the CO 2 end-of-life emissions to align with end-of-life biogenic and fossil carbon emissions, i.e., to include carbon uptake as well as its release.…”

Section: Methodsmentioning

confidence: 99%

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Evaluating the Environmental Sustainability of Alternative Ways to Produce Benzene, Toluene, and Xylene

Zuiderveen,

Caldeira,

Vries

et al. 2024

ACS Sustainable Chem. Eng.

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The petrochemical industry can reduce its environmental impacts by moving from fossil resources to alternative carbon feedstocks. Biomass and plastic waste-based production pathways have recently been developed for benzene, toluene, and xylene (BTX). This study evaluates the environmental impacts of these novel BTX pathways at a commercial and future (2050) scale, combining traditional life cycle assessment with absolute environmental sustainability assessment using the planetary boundary concept. We show that plastic waste-based BTX has lower environmental impacts than fossil BTX, including a 12% decrease in greenhouse gas (GHG) emissions. Biomass-based BTX shows greater GHG emission reductions (42%), but it causes increased freshwater consumption and eutrophication. Toward 2050, GHG emission reductions become 75 and 107% for plastic waste and biobased production, respectively, compared to current fossil-BTX production. When comparing alternative uses of plastic waste, BTX production has larger climate benefits than waste incineration with energy recovery with a GHG benefit of 1.1 kg CO 2 -equiv/kg plastic waste. For biomass (glycerol)-based BTX production, other uses of glycerol are favorable over BTX production. While alternative BTX production pathways can decrease environmental impacts, they still transgress multiple planetary boundaries. Further impact reduction efforts are thus required, such as using other types of (waste) biomass, increasing carbon recycling, and abatement of end-of-life emissions.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Evaluating the Environmental Sustainability of Alternative Ways to Produce Benzene, Toluene, and Xylene

Zuiderveen,

Caldeira,

Vries

et al. 2024

ACS Sustainable Chem. Eng.

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show abstract

“…97 BTX production is expected to increase to over 200 million tonnes per year by 2050, and the market is expected to grow by 6% by 2027 to reach a total value of $275 billion per year. 98,99 Zeolite catalysts were also broadly used for the conversion of the plastic waste mixture. The ZSM-5 (Si/Al = 80) catalyst showed a 45% yield of plastic oil production from catalytic pyrolysis of PE/PP/PS/PET (62/8/15/15 wt.% composition) at 600 °C.…”

Section: Catalystsmentioning

confidence: 99%

Catalytic Approaches to Tackle Mixed Plastic Waste Challenges: A Review

Kwon,

Jeong,

Kim

et al. 2024

Langmuir

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Plastics are widely used materials in our daily lives and various industries due to their affordability and versatility. The massive production of plastic waste, however, has recently emerged as a pressing environmental concern across all media. To address this, emerging technologies are being explored for the sustainable valorization of postconsumer plastic wastes including thermochemical, physical, and catalytic processes aimed at transforming them into higher value-added products. However, the chemical recycling of mixed plastic wastes poses a formidable challenge due to the diverse array of monomers and catalyst systems involved, each employing distinct mechanisms. Complicating matters further is that contaminants reduce catalytic efficacy, requiring rigorous and labor-intensive separation and purification processes to extract individual plastic streams from practical plastic waste mixtures. Consequently, the majority of such mixtures often end up in incineration and landfills, perpetuating environmental and societal challenges, such as leachate, carbon dioxide emissions, and other air pollutants. This review will introduce current technical developments available for recycling practical plastic waste mixtures through catalytic processes. The current challenges in process performance, low selectivity of the desired products, and catalyst deactivation from the catalysis of plastic waste mixtures are also discussed. Promising approaches to overcome the problems are suggested in future research directions.

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Catalytic Transformation of Biomass into Sustainable Carbocycles: Recent Advances, Prospects, and Challenges

Dutta

2024

ChemPlusChem

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Organic compounds bearing one or more carbocycles in their molecular structure have a discernible presence in all major classes of organic products of industrial significance. However, sourcing carbocyclic compounds from exhaustible, anthropogenic carbon (e.g., petroleum) raises serious concerns about sustainability in the chemical industries. This review discusses recent advances in the renewable synthesis of carbocyclic compounds from biomass components following catalytic pathways. The mechanistic insights, process optimizations, green metrics, and alternative synthetic strategies of carbocyclic compounds have been detailed. Moreover, the renewable syntheses of carbocycles have been assessed against their existing synthetic routes from petroleum for better perspectives on their sustainability and technological preparedness. This work will assist the researchers in acquiring updated information on the sustainable synthesis of carbocyclic compounds from various biomass components, comprehending the research gaps, and developing superior synthetic processes for their commercial production.

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Bioderived furanic compounds as replacements for BTX in chemical intermediate applications

Abstract: The valorization of sugars and cellulose into high value-added compounds represents a valuable promising alternative to petrochemical processes for the production of biobased chemicals. This approach can increase sustainability and...

Cited by 4 publications

References 641 publications

Evaluating the Environmental Sustainability of Alternative Ways to Produce Benzene, Toluene, and Xylene

Evaluating the Environmental Sustainability of Alternative Ways to Produce Benzene, Toluene, and Xylene

Catalytic Approaches to Tackle Mixed Plastic Waste Challenges: A Review

Catalytic Transformation of Biomass into Sustainable Carbocycles: Recent Advances, Prospects, and Challenges

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