Review and Perspectives of End-of-Life Tires Applications for Fuel and Products
Review and Perspectives of End-of-Life Tires Applications for Fuel and Products
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DOI：
10.1021/acs.energyfuels.3c00459
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发表时间：
2023-07
期刊：
影响因子：
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通讯作者：
M. Kazemi;Saghar Parikhah Zarmehr;H. Yazdani;E. Fini
中科院分区：
文献类型：
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作者：
M. Kazemi;Saghar Parikhah Zarmehr;H. Yazdani;E. Fini
报废轮胎(ELT)在能源回收和新产品中的应用可促进循环经济。本文回顾了ELT在环境、健康和经济方面的各种应用，重点介绍了ELT在燃料、能源和建筑中的应用。阻碍重新调整用途的ELT更广泛应用的障碍包括：缺乏简化的处理和回收流程；对长期的生态、人类健康和安全后果缺乏了解；以及很少有针对具体应用的技术经济评估和生命周期分析。从四个方面综述了橡胶沥青作为一种经济、环保的应用的前景：(1)橡胶预处理─最有效的技术是化学或微波辐射，最可持续的技术是微生物脱硫化；(2)橡胶颗粒的老化行为─通过多种机制延缓沥青的老化；(3)橡胶沥青的技术经济效益提高了沥青的成本效益和能源效率；(4)环境排放和泄漏关注─重金属和有害污染物如多环芳烃和挥发性有机化合物污染生态系统或引起工人职业病的风险。橡胶沥青的未来研究重点有四个方面：(1)确定临界老化点；(2)描述橡胶沥青的自老化行为；(3)对广泛风化下的长期渗滤液进行量化；(4)从潜在温室气体排放和人类健康的角度比较预处理技术的生态方面。
Applications of end-of-life tires (ELT) for energy recovery and new products can contribute to a circular economy. This paper reviews the environmental, health, and economic aspects of various applications of ELT, focusing specifically on the use of ELT in fuel, energy, and construction. Impediments to a more widespread application of repurposed ELT include a lack of streamlined handling and recycling processes; a poor understanding of the long-term ecological, human health, and safety consequences; and very few application-specific techno-economic assessments and life-cycle analyses. The prospects for rubberized asphalt as an economical and environmentally benign application of ELT are reviewed in four areas: (1) rubber pretreatment─the most effective techniques are chemical or microwave radiation, and the most sustainable technique is microbial devulcanization; (2) aging behavior─rubber particles delay aging in asphalt through several mechanisms; (3) techno-economic benefits─rubberized asphalt improves the cost-efficiency and energy-efficiency of asphalt; and (4) environmental emissions and leakage concerns─the risk of heavy metals and hazardous pollutants such as polycyclic aromatic hydrocarbons and volatile organic compounds contaminating the ecosystem or causing occupational diseases in workers. There are four priority directions for future research on rubberized asphalt: (1) determine the critical aging point; (2) describe the self-rejuvenating behavior; (3) quantify the long-term leachate under extensive weathering; and (4) compare the ecological aspects of pretreatment techniques in terms of potential greenhouse gas emissions and human health.