A concept to support the transformation from a linear to circular carbon economy: net zero emissions, resource efficiency and conservation through a coupling of the energy, chemical and waste management sectors
A concept to support the transformation from a linear to circular carbon economy: net zero emissions, resource efficiency and conservation through a coupling of the energy, chemical and waste management sectors
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支持从线性碳经济向循环碳经济转型的概念：通过能源、化学品和废物管理部门的结合实现净零排放、资源效率和节约
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
B. Meyer
中科院分区：
文献类型：
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作者：
Roh Pin Lee;F. Keller;B. Meyer
煤和含碳废物是有价值的主要和次要碳载体。在目前占主导地位的线性经济中，这种碳资源通常被燃烧来生产电力和热量，并作为解决一个国家浪费问题的一种方式。这不仅是对宝贵的碳资源的浪费，这些资源可以被化学地用作生产其他附加值商品的原材料，也与减少碳排放、提高资源效率和节约的国际努力背道而驰。本文提出了一个概念，以支持从线性的‘单向摇篮到坟墓制造模式’向循环碳经济的转变。通过将能源、化学和废物管理部门结合起来，利用煤炭和废物作为化学工业的替代原材料，开发新的可持续价值链，为结束碳循环提供了一个可行的、面向未来的视角。其他好处还包括降低碳足迹、提高资源效率和保护初级碳资源。此外，还将确定支持成功的部门挂钩所必需的技术创新和发展。为了说明我们的概念，我们将提供一个案例分析，将国内煤炭和废物作为进口原油的替代原料，用于德国的化工生产。最后但并非最不重要的一点是，我们将讨论社会技术系统中在技术、制度和人的层面上的路径依赖对成功过渡到循环碳经济所带来的挑战。
Coal and carbon-containing waste are valuable primary and secondary carbon carriers. In the current dominant linear economy, such carbon resources are generally combusted to produce electricity and heat and as a way to resolve a nation’s waste issue. Not only is this a wastage of precious carbon resources, which can be chemically utilized as raw materials for production of other value-added goods, it is also contrary to international efforts to reduce carbon emissions and increase resource efficiency and conservation. This article presents a concept to support the transformation from a linear ‘one-way cradle to grave manufacturing model’ toward a circular carbon economy. The development of new and sustainable value chains through the utilization of coal and waste as alternative raw materials for the chemical industry via a coupling of the energy, chemical and waste management sectors offers a viable and future-oriented perspective for closing the carbon cycle. Further benefits also include a lowering of the carbon footprint and increasing resource efficiency and conservation of primary carbon resources. In addition, technological innovations and developments that are necessary to support a successful sector coupling will be identified. To illustrate our concept, a case analysis of domestic coal and waste as alternative feedstock to imported crude oil for chemical production in Germany will be presented. Last but not least, challenges posed by path dependency along technological, institutional and human dimensions in the sociotechnical system for a successful transition toward a circular carbon economy will be discussed.