The Experts below are selected from a list of 40218 Experts worldwide ranked by ideXlab platform
John W Sutherland - One of the best experts on this subject based on the ideXlab platform.
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structure of the global Plastic Waste trade network and the impact of china s import ban
Resources Conservation and Recycling, 2020Co-Authors: Chao Wang, Longfeng Zhao, Ming Lim, Weiqiang Chen, John W SutherlandAbstract:Abstract Millions of tonnes (teragrams) of Plastic Waste are traded around the world every year, which plays an important role in partially substituting virgin Plastics as a source of raw materials in Plastic product manufacturing. In this paper, global Plastic Waste trade networks (GPWTNs) from 1988 to 2017 are established using the UN-Comtrade database. The spatiotemporal evolution of the GPWTNs is analyzed. Attention is given to the country ranks, inter- and intra-continental trade flows, and geo-visual communities in the GPWTNs. We also evaluate the direct and indirect impacts of China’s Plastic Waste import ban on the GPWTNs. The results show that the GPWTNs have small-world and scale-free properties and a core-periphery structure. The geography of the Plastic Waste trade is structured by Asia as the dominant importer and North America and Europe as the largest sources of Plastic Waste. China is the unrivaled colossus in the global Plastic Waste trade. After China’s import ban, the Plastic Waste trade flows have been largely redirected to Southeast Asian countries. Compared with import countries, export countries are more important for the robustness of GPWTNs. Clearly, developed countries will not announce bans on Plastic Waste exports; these countries have strong motivation to continue to shift Plastic Waste to poorer countries. However, the import bans from developing countries will compel developed countries to build new disposal facilities and deal with their Plastic Waste domestically.
Ming Lim - One of the best experts on this subject based on the ideXlab platform.
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structure of the global Plastic Waste trade network and the impact of china s import ban
Resources Conservation and Recycling, 2020Co-Authors: Chao Wang, Longfeng Zhao, Ming Lim, Weiqiang Chen, John W SutherlandAbstract:Abstract Millions of tonnes (teragrams) of Plastic Waste are traded around the world every year, which plays an important role in partially substituting virgin Plastics as a source of raw materials in Plastic product manufacturing. In this paper, global Plastic Waste trade networks (GPWTNs) from 1988 to 2017 are established using the UN-Comtrade database. The spatiotemporal evolution of the GPWTNs is analyzed. Attention is given to the country ranks, inter- and intra-continental trade flows, and geo-visual communities in the GPWTNs. We also evaluate the direct and indirect impacts of China’s Plastic Waste import ban on the GPWTNs. The results show that the GPWTNs have small-world and scale-free properties and a core-periphery structure. The geography of the Plastic Waste trade is structured by Asia as the dominant importer and North America and Europe as the largest sources of Plastic Waste. China is the unrivaled colossus in the global Plastic Waste trade. After China’s import ban, the Plastic Waste trade flows have been largely redirected to Southeast Asian countries. Compared with import countries, export countries are more important for the robustness of GPWTNs. Clearly, developed countries will not announce bans on Plastic Waste exports; these countries have strong motivation to continue to shift Plastic Waste to poorer countries. However, the import bans from developing countries will compel developed countries to build new disposal facilities and deal with their Plastic Waste domestically.
Longfeng Zhao - One of the best experts on this subject based on the ideXlab platform.
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structure of the global Plastic Waste trade network and the impact of china s import ban
Resources Conservation and Recycling, 2020Co-Authors: Chao Wang, Longfeng Zhao, Ming Lim, Weiqiang Chen, John W SutherlandAbstract:Abstract Millions of tonnes (teragrams) of Plastic Waste are traded around the world every year, which plays an important role in partially substituting virgin Plastics as a source of raw materials in Plastic product manufacturing. In this paper, global Plastic Waste trade networks (GPWTNs) from 1988 to 2017 are established using the UN-Comtrade database. The spatiotemporal evolution of the GPWTNs is analyzed. Attention is given to the country ranks, inter- and intra-continental trade flows, and geo-visual communities in the GPWTNs. We also evaluate the direct and indirect impacts of China’s Plastic Waste import ban on the GPWTNs. The results show that the GPWTNs have small-world and scale-free properties and a core-periphery structure. The geography of the Plastic Waste trade is structured by Asia as the dominant importer and North America and Europe as the largest sources of Plastic Waste. China is the unrivaled colossus in the global Plastic Waste trade. After China’s import ban, the Plastic Waste trade flows have been largely redirected to Southeast Asian countries. Compared with import countries, export countries are more important for the robustness of GPWTNs. Clearly, developed countries will not announce bans on Plastic Waste exports; these countries have strong motivation to continue to shift Plastic Waste to poorer countries. However, the import bans from developing countries will compel developed countries to build new disposal facilities and deal with their Plastic Waste domestically.
Steven De Meester - One of the best experts on this subject based on the ideXlab platform.
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A comprehensive experimental investigation of Plastic Waste pyrolysis oil quality and its dependence on the Plastic Waste composition
'Elsevier BV', 2022Co-Authors: Marvin Kusenberg, Steven De Meester, Zayoud Azd, Martijn Roosen, Hang Dao Thi, Mehrdad Seifali Abbas-abadi, Andreas Eschenbacher, Uros Kresovic, Kevin M. Van GeemAbstract:Pyrolysis of Plastic packaging Waste yields a liquid product that can be processed in steam crackers producing light olefins and hence closing the loop towards new virgin Plastics. However, there is a lack of knowledge on how the Plastic Waste composition affects the pyrolysis oil quality regarding hydrocarbon composition and contaminant concentrations. The associated uncertainty is a key reason why thermochemical recycling of contaminated Plastic Waste is not yet industrially established. In this study, post-consumer Plastic packaging Waste fractions, namely mixed polyolefins (MPO), polyethylene (PE), and polypropylene (PP) were processed in a continuous pilot-scale pyrolysis unit and the pyrolysis oils subsequently characterized using advanced analytical techniques such as two-dimensional gas chromatography. Substantial amounts of branched olefins (~63 wt%) and diolefins (~20 wt%) were detected in the pyrolysis oil of PP-rich Waste, while PE-rich Waste produced high amounts of linear paraffins (~34 wt%) and olefins (~26 wt%). Furthermore, significant amounts of nitrogen, oxygen, chlorine, iron, sodium and silicon were detected in the pyrolysis oils exceeding feedstock specifications for industrial steam crackers by orders of magnitude. The results show that next to improved Waste sorting and separation processes, pre- and post-treatment techniques are required to produce pyrolysis products suitable for chemical processing
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Performance indicators for a circular economy: A case study on post-industrial Plastic Waste
Resources Conservation and Recycling, 2017Co-Authors: Sofie Huysman, Jonas De Schaepmeester, Kim Ragaert, Jo Dewulf, Steven De MeesterAbstract:A linear economy approach results in many environmental challenges: resources become depleted and end up as Waste and emissions. One of the key strategies to overcome these problems is using Waste as a resource, i.e. evolving toward a circular economy. To monitor this transition, suitable indicators are needed that focus on sustainability issues whilst taking into account the technical reality. In this paper, we develop such an indicator to quantify the circular economy performance of different Plastic Waste treatment options. This indicator is based on the technical quality of the Plastic Waste stream and evaluates resource consumption by using the Cumulative Exergy Extraction from the Natural Environment (CEENE) method. To illustrate the use of this new indicator, it was applied in a case study on post-industrial Plastic Waste treatment. The results show that the indicator can be a very useful approach to guide Waste streams towards their optimal valorization option, based on quality of the Waste flow and the environmental benefit of the different options.
Chao Wang - One of the best experts on this subject based on the ideXlab platform.
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structure of the global Plastic Waste trade network and the impact of china s import ban
Resources Conservation and Recycling, 2020Co-Authors: Chao Wang, Longfeng Zhao, Ming Lim, Weiqiang Chen, John W SutherlandAbstract:Abstract Millions of tonnes (teragrams) of Plastic Waste are traded around the world every year, which plays an important role in partially substituting virgin Plastics as a source of raw materials in Plastic product manufacturing. In this paper, global Plastic Waste trade networks (GPWTNs) from 1988 to 2017 are established using the UN-Comtrade database. The spatiotemporal evolution of the GPWTNs is analyzed. Attention is given to the country ranks, inter- and intra-continental trade flows, and geo-visual communities in the GPWTNs. We also evaluate the direct and indirect impacts of China’s Plastic Waste import ban on the GPWTNs. The results show that the GPWTNs have small-world and scale-free properties and a core-periphery structure. The geography of the Plastic Waste trade is structured by Asia as the dominant importer and North America and Europe as the largest sources of Plastic Waste. China is the unrivaled colossus in the global Plastic Waste trade. After China’s import ban, the Plastic Waste trade flows have been largely redirected to Southeast Asian countries. Compared with import countries, export countries are more important for the robustness of GPWTNs. Clearly, developed countries will not announce bans on Plastic Waste exports; these countries have strong motivation to continue to shift Plastic Waste to poorer countries. However, the import bans from developing countries will compel developed countries to build new disposal facilities and deal with their Plastic Waste domestically.