Prediction of gaseous products from refuse derived fuel pyrolysis using chemical modelling software - Ansys Chemkin-Pro

Sieradzka, Małgorzata; Rajca, Przemysław; Zajemska, M.; Mlonka-Mędrala, Agata; Magdziarz, Aneta

doi:10.1016/j.jclepro.2019.119277

Cited by 54 publications

(28 citation statements)

References 49 publications

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“…In a second study, a sample of the fine fraction (<10 mm) and two samples of combustibles (with different share of defilements) were used for a similar experimental setup [84]. The latter publication was cited in a review on co-incineration of organic waste and coal [85] and with respect to the higher production of CO and CO 2 in pyrolysis when using finer waste fractions in a publication on the prediction of gaseous products from RDF pyrolysis [86]. Two further results originated from this NEW-MINE publication: (1) pyrolysis of landfilled waste yields less oil and gas than pyrolysis of fresh waste and (2) gasification of char from pyrolysis of landfilled waste yields waste fuel with a higher reactivity compared to the same process using fresh waste, which is explained by the catalytic effect of the metals present in landfilled waste [87].…”

Section: Thermochemical Conversionmentioning

confidence: 99%

The EU Training Network for Resource Recovery through Enhanced Landfill Mining—A Review

2021

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The “European Union Training Network for Resource Recovery Through Enhanced Landfill Mining (NEW-MINE)” was a European research project conducted between 2016 and 2020 to investigate the exploration of and resource recovery from landfills as well as the processing of the excavated waste and the valorization of the obtained waste fractions using thermochemical processes. This project yielded more than 40 publications ranging from geophysics via mechanical process engineering to ceramics, which have not yet been discussed coherently in a review publication. This article summarizes and links the NEW-MINE publications and discusses their practical applicability in waste management systems. Within the NEW-MINE project in a first step concentrates of specific materials (e.g., metals, combustibles, inert materials) were produced which might be used as secondary raw materials. In a second step, recycled products (e.g., inorganic polymers, functional glass-ceramics) were produced from these concentrates at the lab scale. However, even if secondary raw materials or recycled products could be produced at a large scale, it remains unclear if they can compete with primary raw materials or products from primary raw materials. Given the ambitions of transition towards a more circular economy, economic incentives are required to make secondary raw materials or recycled products from enhanced landfill mining (ELFM) competitive in the market.

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Section: Thermochemical Conversionmentioning

confidence: 99%

The EU Training Network for Resource Recovery through Enhanced Landfill Mining—A Review

2021

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“…Much research has been done, and many solutions regarding the use of RDF fuel have been proposed in the literature. One of the considered methods is the thermochemical conversion of said plastic waste using pyrolysis and gasification technology [8,9]. Depending on the applied conditions, these technologies allow for the transformation of the feed supplied to the reactor into a flammable gas, liquid, or solid and, to a limited extent, control the flow of their fractions.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical-Driven Prediction of Automotive Shredder Residue Pyrolysis Pathways toward Gaseous Products

et al. 2021

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There has been a gradual increase in the field of parts recovery from cars that are withdrawn from use. However, the disposal of automotive shredder residue (ASR) still remains a significant problem. ASR is refuse derived fuel (RDF), which contains mainly plastics, fiber sponges, and rubbers in different proportions, and therefore a thermal treatment of selected waste samples is applied. The presented research includes thermogravimetry (TG) analysis and differential thermogravimetric (DTG) analysis, as well as a proximate and an ultimate analysis of the ASR samples. The obtained results were processed and used as an input for modelling. The numerical calculations focused on the identification of the ASR’s average composition, the raw pyrolysis process product, its dry pyrolytic gas composition, and the combustible properties of the pyrolytic gases. The TGA analysis with three heating rate levels covered the temperature range from ambient to 800 °C. The thermal decomposition of the studied samples was in three stages confirmed with three peaks observed at the temperatures 280, 470, and 670 °C. The amount of solid residue grew with the heating rates and was in the range of 27–32 wt%. The numerical calculation of the pyrolysis process showed that only 0.46 kg of dry gas were formed from 1 kg of ASR. The gas yield increased with the rising temperature, and, at the same time, its calorific value decreased from 19.22 down to 14.16 MJ/m3. This is due to the decomposition of C6+ hydrocarbons and the promotion of CO formation. The thermodynamic parameters of the combustion process for a pyrolytic gas air mixture, such as the adiabatic flame temperature and laminar flame speed, were higher than for methane and were, respectively, 2073 °C and 1.02 m/s.

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“…Hydrothermal carbonisation (HTC) has been recently pointed out as a possibility regarding synergetic recovery of recalcitrant organic matter and water from digestate [29]. HTC is a thermal valorisation process, typically performed at temperatures typically ranging between 180 and 260 • C [30][31][32], in subcritical water, at elevated pressure, which comes from water vapour pressure as well as from gaseous products of HTC [33][34][35]. The use of HTC can enhance mechanical dewatering, as reported for various wet types of biomass [36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Cascade Membrane System for Separation of Water and Organics from Liquid By-Products of HTC of the Agricultural Digestate—Evaluation of Performance

et al. 2021

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New regulations aimed at curbing the problem of eutrophication introduce limitations for traditional ways to use the by-product of anaerobic digestion—the digestate. Hydrothermal carbonisation (HTC) can be a viable way to valorise the digestate in an energy-efficient manner and at the same time maximise the synergy in terms of recovery of water, nutrients, followed by more efficient use of the remaining carbon. Additionally, hydrothermal treatment is a feasible way to recirculate recalcitrant process residues. Recirculation to anaerobic digestion enables recovery of a significant part of chemical energy lost in HTC by organics dissolved in the liquid effluent. Recirculating back to the HTC process can enhance nutrient recovery by making process water more acidic. However, such an effect of synergy can be exploited to its full extent only when viable separation techniques are applied to separate organic by-products of HTC and water. The results presented in this study show that using cascade membrane systems (microfiltration (MF) → ultrafiltration (UF) → nanofiltration (NF)), using polymeric membranes, can facilitate such separation. The best results were obtained by conducting sequential treatment of the liquid by-product of HTC in the following membrane sequence: MF 0.2 µm → UF PES 10 → NF NPO30P, which allowed reaching COD removal efficiency of almost 60%.

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Prediction of gaseous products from refuse derived fuel pyrolysis using chemical modelling software - Ansys Chemkin-Pro

Cited by 54 publications

References 49 publications

The EU Training Network for Resource Recovery through Enhanced Landfill Mining—A Review

The EU Training Network for Resource Recovery through Enhanced Landfill Mining—A Review

Experimental and Numerical-Driven Prediction of Automotive Shredder Residue Pyrolysis Pathways toward Gaseous Products

Cascade Membrane System for Separation of Water and Organics from Liquid By-Products of HTC of the Agricultural Digestate—Evaluation of Performance

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