当前位置: X-MOL 学术Prog. Energy Combust. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Co-pyrolysis of waste plastic and solid biomass for synergistic production of biofuels and chemicals-A review
Progress in Energy and Combustion Science ( IF 32.0 ) Pub Date : 2021-01-02 , DOI: 10.1016/j.pecs.2020.100899
Zhiwei Wang , Kiran G. Burra , Tingzhou Lei , Ashwani K. Gupta

The amount of plastics disposed from modern lifestyles have increased sharply in recent years. Solid biomass is an abundant energy resource that exists worldwide. Transformation of these waste plastics and solid biomass feedstock mixtures via co-pyrolysis can provide synergistic product enhancement for fuels and value-added products. The produced products can be used as chemicals and pollutant sorbents to foster eco-friendly pathways for waste management and sustainability. Progress into this avenue of waste disposal and energy production is the focus of this review. Properties of characteristic solid feedstock mixtures are discussed with focus on elemental composition, proximate analysis, and heating value. Effective H to C ratio of the different feedstocks is evaluated for asserting the quality of petrochemical equivalent products produced from co-pyrolysis of plastic wastes and biomass. The characteristics of polyethylene terephthalate (PET), high density and low-density polyethylene (HDPE & LDPE), polyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS) and other major plastic waste components are discussed with focus on synergistic effects attainable by co-pyrolyzing them with biomass. State-of-the-art experimental methods for co-pyrolysis investigation are reviewed in detail using TGA, pyrolyzer, fixed bed reactor, fluidized bed reactor, microwave, and multi-step reactors using GC, MS, and FTIR diagnostics. In addition, different catalytic co-pyrolysis reactors are compared and discussed at different ratios of feedstock to catalyst, reactor temperature, and other operational parameters along with an in-depth understanding of several catalytic processing (ZSM-5 based catalyst, transition metal-based catalyst, multipurpose catalysts and ex-situ catalyst) for favorable products yield. Co-pyrolysis of waste plastic and solid biomass mixtures are reviewed for insights into liquid products for fuels and chemicals, as well as yield and composition of gases and solid residues evolved along with surface characteristics of the solid residues obtained from the selected configurations. The challenges and opportunities envisioned for the development in co-pyrolysis of several solid organic waste and plastic feedstock mixtures are also discussed. The goal was to provide favorable feasible pathways for clean and efficient disposal of plastic wastes with the incorporation of waste biomass for enhanced synergistic effects in waste disposal along with the recovery of energy and value-added products.



中文翻译:

废塑料和固体生物质的共热解以协同生产生物燃料和化学品-综述

近年来,以现代生活方式处理的塑料数量急剧增加。固体生物质是全世界存在的丰富能源。这些废塑料和固体生物质原料混合物通过共热分解的转化可以为燃料和增值产品提供协同增效的产品。所生产的产品可用作化学品和污染物吸附剂,以促进废物管理和可持续性的环保途径。这次审查的重点是在废物处理和能源生产的途径上取得进展。讨论了特色固体原料混合物的性能,重点关注元素组成,邻近分析和热值。评估了不同原料的有效H / C比,以确认由塑料废物和生物质的共热解产生的石化等效产品的质量。讨论了聚对苯二甲酸乙二醇酯(PET),高密度和低密度聚乙烯(HDPE和LDPE),聚氯乙烯(PVC),聚丙烯(PP),聚苯乙烯(PS)和其他主要塑料废料的特性,着重于协同效应通过将它们与生物质共同热解可以达到。使用TGA,热解器,固定床反应器,流化床反应器,微波和使用GC,MS和FTIR诊断程序的多步反应器,详细审查了共热解研究的最新实验方法。此外,在原料与催化剂的不同比例下比较和讨论了不同的催化共热解反应器,反应器温度和其他操作参数,以及对几种催化工艺(基于ZSM-5的催化剂,基于过渡金属的催化剂,多用途催化剂和易位催化剂)的深入理解,以提高产品收率。审查了废塑料和固体生物质混合物的共热解过程,以深入了解用于燃料和化学品的液体产品,以及从选定配置中获得的气体和固体残留物的产率和组成以及所产生的固体残留物的表面特性。还讨论了几种固体有机废物和塑料原料混合物在共热解过程中发展所面临的挑战和机遇。

更新日期:2021-01-04
down
wechat
bug