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Life-cycle analysis of fuels from post-use non-recycled plastics

机译：使用过的不可回收塑料燃料的生命周期分析

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摘要

Plastic-to-fuel (PTF) technology uses pyrolysis to convert plastic waste-especially non-recycled plastics (NRP)-into ultra-low sulfur diesel (ULSD) fuel. To assess the potential energy and environmental benefits associated with PTF technology, we calculated the energy, water consumption, and greenhouse gas emissions of NRP-derived ULSD and compared the results to those metrics for conventional ULSD fuel. For these analyses, we used the Greenhouse gases, Regulated Emissions and Energy use in Transportation (GREET (R)) model. Five companies provided pyrolysis process product yields and material and energy consumption data. Co-products of the process included char and fuel gas. Char can be landfilled, which, per the company responses, is the most common practice for this co-product, or it may be sold as an energy product. Fuel gas can be combusted to internally generate process heat and electricity. Sensitivity analyses investigated the influence of co-product handling methodology, product yield, electric grid composition, and assumed efficiency of char combustion technology on life-cycle greenhouse gas emissions. The sensitivity analysis indicates that the GHG emissions would likely be reduced up to 14% when it is compared to conventional ULSD, depending on the co-product treatment method used. NRP-derived ULSD fuel could therefore be considered at a minimum carbon neutral with the potential to offer a modest GHG reduction. Furthermore, this waste-derived fuel had 58% lower water consumption and up to 96% lower fossil fuel consumption than conventional ULSD fuel in the base case. In addition to the comparison of PTF fuels with conventional transportation fuels, we also compare the results with alternative scenarios for managing NRP including power generation and landfilling in the United States. (C) 2017 Elsevier Ltd. All rights reserved.
机译：塑料制燃料（PTF）技术使用热解将塑料废料，特别是不可回收的塑料（NRP）转化为超低硫柴油（ULSD）燃料。为了评估与PTF技术相关的潜在能源和环境效益，我们计算了NRP衍生的ULSD的能源，水消耗和温室气体排放，并将结果与​​常规ULSD燃料的那些指标进行了比较。对于这些分析，我们使用了温室气体，运输中的受控排放和能源使用（GREET（R））模型。五家公司提供了热解工艺产品的产量以及材料和能耗数据。该过程的副产物包括炭和燃料气。炭可以被填埋，根据公司的答复，炭是这种副产品的最常见做法，也可以作为能源产品出售。燃料气体可以燃烧以内部产生过程热和电。敏感性分析调查了副产品处理方法，产品产量，电网组成以及碳燃烧技术的假定效率对生命周期温室气体排放的影响。敏感性分析表明，与常规ULSD相比，GHG排放量最多可减少14％，具体取决于所使用的副产品处理方法。因此，可以考虑将源自NRP的ULSD燃料视为最低碳中性，并有可能适度减少温室气体排放。此外，在基本情况下，与常规的ULSD燃料相比，这种废物衍生的燃料的水消耗量降低了58％，化石燃料的消耗量降低了96％。除了将PTF燃料与常规运输燃料进行比较之外，我们还将结果与用于管理NRP的替代方案（包括美国的发电和垃圾掩埋）进行比较。 （C）2017 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Fuel》 |2017年第1期|11-22|共12页
  • 作者

    Benavides Pahola Thathiana; Sun Pingping; Han Jeongwoo; Dunn Jennifer B.; Wang Michael;

  • 作者单位

    Argonne Natl Lab, Div Energy Syst, Syst Assessment Grp, 9700 S Cass Ave, Argonne, IL 60439 USA;

    Argonne Natl Lab, Div Energy Syst, Syst Assessment Grp, 9700 S Cass Ave, Argonne, IL 60439 USA;

    Argonne Natl Lab, Div Energy Syst, Syst Assessment Grp, 9700 S Cass Ave, Argonne, IL 60439 USA;

    Argonne Natl Lab, Div Energy Syst, Syst Assessment Grp, 9700 S Cass Ave, Argonne, IL 60439 USA;

    Argonne Natl Lab, Div Energy Syst, Syst Assessment Grp, 9700 S Cass Ave, Argonne, IL 60439 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Plastic-to-fuel; Non-recycled plastic; Pyrolysis; Life-cycle analysis; Waste plastic management;

    机译：塑料制燃料;不可回收塑料;热解;生命周期分析;废塑料管理;

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