Optimising energy recovery and use of chemicals, resources and materials in modern waste-to-energy plants

Greef, Johan De; Villani, Kenneth; Goethals, Joke; Belle, H. Van; Caneghem, Jo Van; Vandecasteele, Carlo

doi:10.1016/j.wasman.2013.05.026

Cited by 41 publications

(20 citation statements)

References 7 publications

(6 reference statements)

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“…550 °C in power plants, to avoid high temperature corrosion. Indeed, due to the chemical and physical composition of the MSW, combustion gasses in WtE plants contain high concentrations of acids, metal species and dust, leading to phenomena of fouling and corrosion (Lee at al., 2007;De Greef et al, 2013). Through application of advanced cladding and coating of metal heat exchanging surfaces, it is possible to apply higher steam parameters.…”

Section: Emission Of Air Pollutantsmentioning

confidence: 99%

Waste-to-energy is compatible and complementary with recycling in the circular economy

Caneghem

Acker

Greef³

et al. 2019

Clean Techn Environ Policy

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This paper reviews the role of conventional waste-to-energy, i.e. incineration of (mainly) municipal solid waste with energy recovery, in the circular economy. It shows that, although waste-to-energy figures on a lower level in the European waste hierarchy than recycling, it plays, from an overall sustainability point of view, an essential, complementary and facilitating role within the circular economy. First of all, waste-to-energy combusts (or should combust) only waste that is non-recyclable for economic, technical or environmental reasons. This way waste-to-energy is compatible with recycling and only competes with landfill, which is lower in the waste hierarchy. Furthermore, waste-to-energy keeps material cycles, and ultimately the environment and humans largely free from toxic substances. Finally, waste-to-energy allows recovery of both energy and materials from non-recyclable waste and hence contributes to keeping materials in circulation. These arguments are elaborated and illustrated with many examples. This paper also points out the pitfalls of a circular economy if it merely focuses on material cycles, disregarding economic, environmental, social and health aspects of sustainability.

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Section: Emission Of Air Pollutantsmentioning

confidence: 99%

Waste-to-energy is compatible and complementary with recycling in the circular economy

Caneghem

Acker

Greef³

et al. 2019

Clean Techn Environ Policy

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“…When the steam generated using waste incineration heat is used directly, the steam temperature ranges between 125 and 180 • C [4]. Therefore, the design temperature considered herein is 151.9 • C, which corresponds to the saturation temperature at the design pressure of 500 kPa.…”

Section: High-temperature Steam Generator (Htsg) Designmentioning

confidence: 99%

“…In cases when steam is generated and used directly near demanding locations, the steam temperature typically ranges between 125 and 180 • C [4]. This temperature range is obtained without a superheater due to the requirements and economic feasibility.…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Study of HTSG for Waste to Energy: Analysis of Pressure Difference

Jang

Cho

et al. 2018

Energies

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The purpose of the present study is to analyze pressure difference changes inside a high-temperature steam generator (HTSG), which produces steam using the heat generated by waste incineration and decreases the pressure of the produced steam while increasing its temperature. The high-temperature, low-pressure steam produced by a HTSG is used for hydrogen production. Therefore, the steam temperature must be at least 700 • C, and the pressure must be lower than 300 kPa; hence, a device is needed to increase the steam temperature in the boiler and decrease the steam pressure. The physical behavior of the device was modeled and experimentally validated. The modeling and experimental results demonstrated good agreement when the steam was not preheated; however, an additional pressure drop required consideration of the opposite case.

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“…Therefore, in new installations, semiwet FGC is usually replaced by dry FGC. Moreover selective non-catalytic reduction (SNCR) for NO x reduction is gaining popularity over selective catalytic reduction (SCR) because SCR requires too much energy for gas reheating, and improved SNCR [9] can perform well below the current emission limits [10].…”

Section: Technologiesmentioning

confidence: 99%

Progress and Prospects in the Field of Biomass and Waste to Energy and Added-Value Materials

Castaldi

Deventer

Lavoie

et al. 2017

Waste Biomass Valor

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International audienceThis paper reports the conclusions of the three panel discussions held during the WasteEng2016 Conference in Albi, France (http://www.wasteeng2016.org/). It explores the research and development trends aiming at the production of energy and added value materials from waste and/or biomass. Three approaches are investigated: thermochemical conversion (Panel chairs: M. Castaldi, J.M. Lavoie, C. Vandecasteele), biochemical conversion (Panel chairs: J. Legrand, P.T. Vasudevan, W. Verstraete) and, sustainable construction and energy storage (Panel chairs: J. van Deventer, Y. Pontikes, X. Py). The thermochemical conversion session addressed feedstock, technologies for energy recovery and material recycling, gas cleaning and the marketplace. It is shown that combustion (WtE) is the leading technology and that also much research is devoted to gasification and pyrolysis. The biochemical conversion session noted the ability to yield products applied to different sectors such as food and feed, chemical, biofuels, biomaterials and many others. Innovation oriented towards better exploitation of the existing biocatalytic activity of known enzymes and microbes is also discussed. Recycling of solid and liquid waste received substantial focus in construction. Materials for thermal energy storage from waste are considered a promising use of recycled materials. The paper also shows how entrepreneurs introducing new technology have to work with both technical and commercial uncertainty, which renders investment into new technology a high risk. Finally, this paper identifies, in the three sections developed below, the trends for ongoing research and highlights the direction where the research is trending from this point forward

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Optimising energy recovery and use of chemicals, resources and materials in modern waste-to-energy plants

Cited by 41 publications

References 7 publications

Waste-to-energy is compatible and complementary with recycling in the circular economy

Waste-to-energy is compatible and complementary with recycling in the circular economy

Design and Experimental Study of HTSG for Waste to Energy: Analysis of Pressure Difference

Progress and Prospects in the Field of Biomass and Waste to Energy and Added-Value Materials

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