One-step reconstruction of plastic waste back to its constituent monomers (ONESTEP)

将塑料废物一步重建回其组成单体(ONESTEP)

基本信息

  • 批准号:
    EP/Y003934/1
  • 负责人:
  • 金额:
    $ 66.42万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2024
  • 资助国家:
    英国
  • 起止时间:
    2024 至 无数据
  • 项目状态:
    未结题

项目摘要

A truly circular plastic economy in which waste plastics do not find their way into landfill, or the environment is only achievable by developing new, efficient processes that can avoid the major limitations of the current methods used in the recycling industry. The processes we rely upon at the moment require a number of costly and energy intensive steps, can produce greenhouse gases, and cannot treat many different types of plastic waste, particularly single-use plastics due to their low economic value of recycling.By using a method that can efficiently break down waste plastics into their original molecular components, then using them to remake, new reusable plastics, the catastrophic effects upon the environment caused by waste plastics can be removed.This programme of research brings together international experts in catalysis and electromagnetism with the goal of developing a one step process to turn a range of polymers into their constituent monomers thereby realising a fully circular plastic economy. Using the energy efficient heating characteristics of and control afforded by the microwave spectrum it is possible to obtain yields unachievable by current recycling methods. Conventional thermochemical recovery of monomers from polyolefins in one or multiple steps is challenging due to the chemical inertness of plastics. Existing single step methods can only yield about 20-30% of the desired monomers, and multiple step processes are highly energy intensive, requiring high catalyst loading and temperatures above 700 C. The unique properties of microwaves offer a greener, faster, one-step process in which it is possible to enhance yields of valuable, constituent monomers to higher than 70% from a range of waste plastics at milder reaction conditions, impacting the entire life cycle and value chain of the plastics and related industries. This research will directly address plastic waste pollution by offering a truly sustainable, circular plastic economy.Here, working closely with industrial partners, and partners from Welsh Government and public campaign group no2plastics, we target scaled-up (pilot scale, 6kW) production of virgin-quality depolymerised monomers, in a single step, and with no greenhouse gas emissions. This will be followed by efficient synthesis of new high-quality polymers from the recovered molecular components. Key to this research is delivery of (i) catalysts and microwave protocols capable of the depolymerisation of a wide range of different polymers into constituent monomers, with targeted and controllable selective scission of C-C and C-H bonds not accessible by other routes, and (ii) a sustainable, low-energy, zero emission route to a circular plastic economy, which will contribute significantly to reduction of energy usage, wastage and emissions, impacting the entire life cycle and value chain.
真正的循环塑料经济,废塑料不会进入垃圾填埋场,或者只有通过开发新的、高效的工艺来避免回收行业目前使用的方法的主要限制,才能实现环境保护。我们目前所依赖的过程需要一些昂贵和能源密集的步骤,会产生温室气体,而且由于回收的经济价值较低,无法处理许多不同类型的塑料废物,特别是一次性塑料。通过使用一种方法,可以有效地将废塑料分解成原始分子组分,然后使用它们来重新制造新的可重复使用的塑料,可以消除废塑料对环境造成的灾难性影响。这项研究计划汇集了国际催化和电磁专家,目标是开发一种一步过程,将一系列聚合物转化为它们的组成单体,从而实现完全循环的塑料经济。利用微波光谱的节能加热特性和提供的控制,有可能获得目前回收方法无法实现的产量。由于塑料的化学惰性,传统的从聚烯烃中一步或多步热化学回收单体是具有挑战性的。现有的单步法只能得到所需单体的约20%-30%,而多步法是能源密集型工艺,需要高催化剂装载量和高于700℃的温度。微波的独特特性提供了更绿色、更快的一步法工艺,在这种工艺中,可以在较温和的反应条件下将一系列废塑料中有价值的组成单体的产率提高到70%以上,从而影响塑料和相关行业的整个生命周期和价值链。这项研究将通过提供真正可持续的循环塑料经济来直接解决塑料垃圾污染问题。在这里,我们与工业合作伙伴、威尔士政府的合作伙伴和公共活动组织No2Platform密切合作,目标是扩大(中试规模,6kW)的原始质量解聚单体的生产,一步完成,并且没有温室气体排放。随后将从回收的分子组分中高效地合成新的高质量聚合物。这项研究的关键是提供(I)催化剂和微波协议,能够将各种不同的聚合物解聚成组成单体,并有针对性地和可控地选择性地断裂C-C和C-H键,这是其他途径无法达到的,以及(Ii)可持续、低能量、零排放的循环塑料经济途径,这将大大有助于减少能源消耗、浪费和排放,影响整个生命周期和价值链。

项目成果

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Daniel Slocombe其他文献

Sustainable chemical processing of flowing wastewater through microwave energy
  • DOI:
    10.1016/j.chemosphere.2021.132035
  • 发表时间:
    2022-01-01
  • 期刊:
  • 影响因子:
  • 作者:
    Fizza Siddique;Amir Mirzaei;Sergio Gonzalez-Cortes;Daniel Slocombe;Hamid A. Al-Megren;Tiancun Xiao;M.A. Rafiq;Peter P. Edwards
  • 通讯作者:
    Peter P. Edwards
What Happens if you Fire Lasers at Diamond Then Microwave It? A Novel Method Towards Ion Channel Study
  • DOI:
    10.1016/j.bpj.2019.11.3320
  • 发表时间:
    2020-02-07
  • 期刊:
  • 影响因子:
  • 作者:
    Andrew R. Mason;William D. Jamieson;Oliver Williams;Daniel Slocombe;Oliver K. Castell
  • 通讯作者:
    Oliver K. Castell

Daniel Slocombe的其他文献

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{{ truncateString('Daniel Slocombe', 18)}}的其他基金

Decarbonisation of oil: Microwave-catalytic production of clean hydrogen from fossil fuels
石油脱碳:微波催化从化石燃料生产清洁氢气
  • 批准号:
    EP/T00150X/1
  • 财政年份:
    2020
  • 资助金额:
    $ 66.42万
  • 项目类别:
    Research Grant

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