The pyrolysis process of sewage sludge

Косов, В. Ф.; Umnova, O M; Зайченко, В. М.

doi:10.1088/1742-6596/653/1/012032

Cited by 5 publications

(8 citation statements)

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“…Steam gasification was simulated by increasing the moisture content of the starting material. At the moisture content of 22 and 44 % w/w, char residue decreased to 0.043 and 0.003 kg/kg, respectively, supporting the speculation of Kosov et al [15].…”

Section: Resultssupporting

confidence: 81%

“…The calculated data is in fairly good agreement with the observed experimental data [15]. Kosov et al [15] propose to use additional steam to increase the energy efficiency of the gasification plant.…”

Section: Resultssupporting

confidence: 79%

“…When performing the calculations, the gasification conditions presented in [15] were simulated. Initial biomass parameters were the following: 5.6, 0.5, 47.68, 5.54, 37.43, 0.05, and 0.02 % w/w for humidity, ash content, C, H, O, N, and S, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Thermo-chemical equilibrium modeling and simulation of biomass gasification

2020

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Here, we present the results of numerical studies of biomass gasification using poultry litter, sewage sludge and wood waste (pine shavings) as examples of starting materials. The aim of the study was to find ways to increase the degree of biomass conversion to combustible gaseous products (CO, H2, CnHm) and to achieve high calorific value of the generated synthesis gas. Modeling biomass gasification was performed for a multicomponent reacting system in a state of thermodynamic and chemical equilibrium. The mathematical model and the calculation program created by the authors were used. The presence of a condensed phase in the form of fine particles of solid carbon and ash in biomass gasification products was taken into account. The optimal levels of gasification temperatures and conditions that help minimizing the concentration of solid carbon particles in gasification products were determined. For optimal biomass gasification, we recommend using the thermal energy obtained from burning part of the generated syngas.

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Section: Resultssupporting

confidence: 81%

Section: Resultssupporting

confidence: 79%

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Thermo-chemical equilibrium modeling and simulation of biomass gasification

2020

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“…Other effective alternatives incorporate a two-stage process where moisture contents are reduced, either mechanically or chemically, before thermal drying. 49 There are several types of pyrolysis reactors such as rotating cone, fluidized bed, circulating 8,40,42 Moisture, after bench drying 9.51-20.0 8,40,42,43 Ash content, db. 23.66-36.28 8,40,42,43 Volatile matter, db.…”

Section: Pyrolysis Of Sludge Waste From the Dairy Industrymentioning

confidence: 99%

“…However, for large‐scale high‐temperature pyrolysis thermal drying, using spent‐off gases and latent heat can improve the energy mass balance. Other effective alternatives incorporate a two‐stage process where moisture contents are reduced, either mechanically or chemically, before thermal drying 49 . There are several types of pyrolysis reactors such as rotating cone, fluidized bed, circulating fluid bed and ablative (vortex and rotating blade), each demonstrating various operational advantages 50 .…”

Section: Energy From the Dairy Wastementioning

confidence: 99%

Harnessing energy from Australian dairy waste: utilizing five methodologies

Arefin¹,

Nabi²,

McIntosh³

2020

Biofuels Bioprod Bioref

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As dairy industries increase across Australia, the amount of dairy waste is also on the rise. Australia annually production stands at around 377 727 t of cheese, 273 425 t of milk powder and 92 698 t of butter, and it is the third largest exporter of milk. The waste produced by these industries is considered a potentially valuable resource, and an environmental pollutant if not appropriately managed. The focus of this review is to evaluate the potential of converting typical Australian dairy industry waste into sustainable energy. Five fundamental methods including transesterification, pyrolysis, anaerobic digestion, steam reforming, and hydrothermal carbonization are discussed. Their technological merits, demerits and adaptability from the perspective of Australia are examined. The properties of representative wastes are also considered for the different energy conversion processes. This review aims to highlight the potential use of dairy industry wastes as feedstock for the emerging renewable energy sector.

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