Circular Economy and Green Chemistry: The Need for Radical Innovative Approaches in the Design for New Products

Energies, Journal Year: 2023, Volume and Issue: 16(4), P. 1752 - 1752

Published: Feb. 9, 2023

The idea of a circular economy (CE) has gained ground over the past ten years as means addressing sustainable development and getting around limitations current linear dominant production consumption patterns. primary goal CE is to encourage adoption closing-the-loop methods improve resource use efficiency, modify chemical processes, increase product material lifespan. According 2030 Agenda for Sustainable Development, which focuses on 17 Development Goals, 14 call appropriate application green chemistry (GC) concepts patterns, role that may play in shift toward more models critical. By serving foundation novel products made from renewable feedstocks designed be reused, recycled, or recovered with associated minimum energy requirements, could key unlocking economic potential new design ultimately solving waste management problems. aim this perspective paper, while using variety literature sources, essentially capture main issues GC paradigms how these two approaches can merge business materials. This integration reducing waste, conserving resources, minimizing negative environmental impacts, also considering viability. However, obstacles achieving implementation principles are investment, education, legislation. To advance chemistry, international agreements should reconsidered provide an framework, including creation incentives businesses individuals adopt practices, establishment education programs promote benefits regulations support transition

Language: Английский

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Understanding the Structure–Activity Relationships in Catalytic Conversion of Polyolefin Plastics by Zeolite-Based Catalysts: A Critical Review

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(24), P. 14882 - 14901

Published: Nov. 23, 2022

Polyolefins, the largest used commodity plastics in world, find extensive application many fields. However, most end up landfills or incineration, leading to severe ecological crises, environmental pollution, and serious resource waste problems. As representatives on chemical upcycling of polyolefin fuels bulk/fine chemicals, catalytic cracking hydrocracking based zeolite metal/zeolite composite catalysts are considered effective paths due their large capacity strong adaptability existing petrochemical equipment. After an overview reaction mechanisms pyrolysis cracking, this review aims comprehensively discuss influence catalyst structure (acidity, pore structure, morphology) activity, selectivity, stability particularly emphasizing importance for matching acidity target product formation. Subsequently, structure–activity relationship between metal site zeolite's acid is also discussed. In end, emerging opportunities challenges proposed promote a more efficient way upcycling.

Language: Английский

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Thermochemical Conversion of Plastic Waste into Fuels, Chemicals, and Value‐Added Materials: A Critical Review and Outlooks

ChemSusChem, Journal Year: 2022, Volume and Issue: 15(11)

Published: March 29, 2022

Plastic waste is an emerging environmental issue for our society. Critical action to tackle this problem upcycle plastic as valuable feedstock. Thermochemical conversion of has received growing attention. Although thermochemical promising handling mixed waste, it typically occurs at high temperatures (300-800 °C). Catalysts can play a critical role in improving the energy efficiency conversion, promoting targeted reactions, and product selectivity. This Review aims summarize state-of-the-art catalytic conversions various types waste. First, general trends recent development including pyrolysis, gasification, hydrothermal processes, chemolysis into fuels, chemicals, value-added materials were reviewed. Second, status quo commercial implementation was summarized. Finally, current challenges future perspectives design sustainable robust catalysts discussed.

Language: Английский

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Current Prospects for Plastic Waste Treatment

Polymers, Journal Year: 2022, Volume and Issue: 14(15), P. 3133 - 3133

Published: July 31, 2022

The excessive amount of global plastic produced over the past century, together with poor waste management, has raised concerns about environmental sustainability. Plastic recycling become a practical approach for diminishing and maintaining sustainability among management methods. Chemical mechanical are typical approaches to waste, simple process, low cost, environmentally friendly potential profitability. Several materials, such as polypropylene, polystyrene, polyvinyl chloride, high-density polyethylene, low-density polyurethanes, can be recycled chemical approaches. Nevertheless, due waste’s varying physical properties, separation becomes challenge. Hence, reliable effective technology is critical increasing value rate. Integrating technologies would an efficient method reducing accumulation contaminants by especially in industrial uses. This review addresses recent advances technology, mainly recycling. article also discusses current various materials.

Language: Английский

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A critical review and future perspective of plastic waste recycling

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 881, P. 163433 - 163433

Published: April 13, 2023

Language: Английский

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Plasma gasification versus incineration of plastic waste: Energy, economic and environmental analysis

Fuel Processing Technology, Journal Year: 2022, Volume and Issue: 237, P. 107470 - 107470

Published: Aug. 22, 2022

Language: Английский

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Nanocatalyzed upcycling of the plastic wastes for a circular economy

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 458, P. 214422 - 214422

Published: Jan. 31, 2022

Language: Английский

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Biodegradation of Different Types of Bioplastics through Composting—A Recent Trend in Green Recycling

Catalysts, Journal Year: 2023, Volume and Issue: 13(2), P. 294 - 294

Published: Jan. 28, 2023

In recent years, the adoption of sustainable alternatives has become a powerful tool for replacing petroleum-based polymers. As biodegradable alternative to petroleum-derived plastics, bioplastics are becoming more and prevalent have potential make significant contribution reducing plastic pollution in environment. Meanwhile, their biodegradation is highly dependent on The leakage into environment long degradation time frame during waste management processes major concerns that need further investigation. This review highlights extent rate bioplastic composting, soil, aquatic environments, examines biological environmental factors involved process. Furthermore, research long-term fate natural industrial environments. roles played by enzymes as biocatalysts metal compounds catalysts through composting can help achieve approach biopolymers. knowledge gained this study will also contribute development policies assessments waste, well provide direction future development.

Language: Английский

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Supercritical fluid technology - an eco-friendly approach for resource recovery from e-waste and plastic waste: A review

Separation and Purification Technology, Journal Year: 2022, Volume and Issue: 304, P. 122314 - 122314

Published: Oct. 5, 2022

Language: Английский

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Pyrolysis for plastic waste management: An engineering perspective

Journal of environmental chemical engineering, Journal Year: 2022, Volume and Issue: 10(6), P. 108865 - 108865

Published: Oct. 27, 2022

Language: Английский

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