Progress of the development of reactors for pyrolysis of municipal waste

Li, Chao; Zhang, Shu; Wang, Yi; Niu, Shengli; Li, Yingjie; Hu, Xun

doi:10.1039/d0se01122c

Cited by 39 publications

(33 citation statements)

References 114 publications

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“…Conversely, Gholizadeh et al [52] observed no difference in maize yield after biochar application compared with control. Also, Mclennon et al [80] reported that the application of biochar individually or in combination with N fertilization did not affect the biomass production of Schedonorus arundinacea and Poa pratensis L. These contradictory results likely occurred because of variations in the physiochemical properties of biochar.…”

Section: Impact Of Biochar On Crop Production and Qualitymentioning

confidence: 93%

“…In earthen or metal kilns, organic biomass is piled up and heated in the absence of air for several hours to days. In all cases, the heating rate is very low in these methods and may not be uniform for all biomass particles because of the slow heat transfer inside the reactors [52]. As a result, biomass particles get more heat the closer they are to the heating unit, and vice versa as they get farther away from it [52].…”

Section: Traditional Methodsmentioning

confidence: 99%

“…In all cases, the heating rate is very low in these methods and may not be uniform for all biomass particles because of the slow heat transfer inside the reactors [52]. As a result, biomass particles get more heat the closer they are to the heating unit, and vice versa as they get farther away from it [52]. With the advancement in technology, new methods such as pyrolysis, gasification, and torrefaction, which yield more and higher quality biochar, started to be used, although the principle is the same in all cases [1].…”

Section: Traditional Methodsmentioning

confidence: 99%

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Biochar and Its Broad Impacts in Soil Quality and Fertility, Nutrient Leaching and Crop Productivity: A Review

et al. 2021

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Biochar is gaining significant attention due to its potential for carbon (C) sequestration, improvement of soil health, fertility enhancement, and crop productivity and quality. In this review, we discuss the most common available techniques for biochar production, the main physiochemical properties of biochar, and its effects on soil health, including physical, chemical, and biological parameters of soil quality and fertility, nutrient leaching, salt stress, and crop productivity and quality. In addition, the impacts of biochar addition on salt-affected and heavy metal contaminated soils were also reviewed. An ample body of literature supports the idea that soil amended with biochar has a high potential to increase crop productivity due to the concomitant improvement in soil structure, high nutrient use efficiency (NUE), aeration, porosity, and water-holding capacity (WHC), among other soil amendments. However, the increases in crop productivity in biochar-amended soils are most frequently reported in the coarse-textured and sandy soils compared with the fine-textured and fertile soils. Biochar has a significant effect on soil microbial community composition and abundance. The negative impacts that salt-affected and heavy metal polluted soils have on plant growth and yield and on components of soil quality such as soil aggregation and stability can be ameliorated by the application of biochar. Moreover, most of the positive impacts of biochar application have been observed when biochar was applied with other organic and inorganic amendments and fertilizers. Biochar addition to the soil can decrease the nitrogen (N) leaching and volatilization as well as increase NUE. However, some potential negative effects of biochar on microbial biomass and activity have been reported. There is also evidence that biochar addition can sorb and retain pesticides for long periods of time, which may result in a high weed infestation and control cost.

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Section: Impact Of Biochar On Crop Production and Qualitymentioning

confidence: 93%

Section: Traditional Methodsmentioning

confidence: 99%

Section: Traditional Methodsmentioning

confidence: 99%

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Biochar and Its Broad Impacts in Soil Quality and Fertility, Nutrient Leaching and Crop Productivity: A Review

et al. 2021

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“…Fast and thermal plasma pyrolysis were investigated in existing studies by showing high conversions of plastic waste and medical waste treatment [ 29 ]. The disadvantage of the thermal plasma pyrolysis is the high energy use and low yield of value-added pyrolysis oil [ 30 ] compared to the fast pyrolysis process when treating plastic compounds and their mixture. Fast pyrolysis, on the other hand, could produce a higher yield of hydrocarbon products involving pyrolysis oil than other chemical recycling processes [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Energy and environmental sustainability of waste personal protective equipment (PPE) treatment under COVID-19

Klemeš

You

2022

Renewable and Sustainable Energy Reviews

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“…The batch and semi-batch reactors are the most popular reactors at laboratory-scale testing, with thermogravimetric analysers being an example. These types of reactors are difficult to scale up, which is why other types of reactors are being developed [ 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Feedstock on the Process Parameters, Product Composition and Pilot-Scale Cracking of Plastics

Frączak¹,

Fabiś²,

Orlińska

2021

Materials

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Chemical recycling of polymers can lead to many different products and play a significant role in the circular economy through the use of plastic waste as a feedstock in the production of valuable materials. The polyolefins: polyethylene (PE) and polypropylene (PP), together with polystyrene (PS), can be chemically recycled by the thermal cracking (pyrolysis) process. In this study, continuous cracking of polyolefins and polystyrene in different proportions and with the addition of other polymers, like polyethylene terephthalate (PET) and polyvinyl chloride (PVC), was investigated at the pilot scale in terms of the process parameters and product yields. Gas chromatography with mass spectrometry (GC-MS) was used for the detailed analysis of the products’ compositions. The boiling temperature distribution and the bromine number were used for additional characterization of products. It was found that an increase of PP share caused a decrease in the process temperature, an increase of the product yield and a shift of the boiling range towards lighter products, increasing the content levels for unsaturates and branched hydrocarbons. It was observed that the addition of 5% PS, PET and PVC reduced the overall product yield, resulting in the creation of a lower-boiling product and increasing the conversion of polyethylene. An addition of 10% polystyrene increased the PP conversion and resulted in a higher product yield, without significant change in the boiling temperatures distribution.

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Progress of the development of reactors for pyrolysis of municipal waste

Abstract: The development of reactors with varied configurations for the pyrolysis of municipal waste is discussed in this review.

Cited by 39 publications

References 114 publications

Biochar and Its Broad Impacts in Soil Quality and Fertility, Nutrient Leaching and Crop Productivity: A Review

Biochar and Its Broad Impacts in Soil Quality and Fertility, Nutrient Leaching and Crop Productivity: A Review

Energy and environmental sustainability of waste personal protective equipment (PPE) treatment under COVID-19

Influence of the Feedstock on the Process Parameters, Product Composition and Pilot-Scale Cracking of Plastics

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