Natural gas-supported gasification of polyethylene and wood mixtures in a porous medium reactor

Orihuela, M. Pilar; Espinoza, Lorena; Ripoll, Nicolás; Chacartegui, Ricardo; Toledo, Mario

doi:10.1016/j.enconman.2021.113901

Cited by 11 publications

(3 citation statements)

References 66 publications

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“…Filtration combustion with a non-uniform distribution of plastic (in the form of a "charge") was studied theoretically and experimentally in [114,115], where the efficiency of carbon combustion heat used to decompose plastic was evaluated: in this case, however, it is necessary to have a sufficient gap in the packing for providing filtration. The decomposition of polyethylene during the filtration combustion of gaseous fuel was studied in [116], and in [117] with wood additives.…”

Section: Resultsmentioning

confidence: 99%

Particle Agglomeration of Biomass and Plastic Waste during Their Thermochemical Fixed-Bed Conversion

Donskoy

2023

Energies

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The article provides state-of-the-art research on agglomeration processes during fixed-bed combustion and gasification of low-grade fuels such as biomass and waste (primarily plastic-containing waste). Such fuels demonstrate complex thermal behaviour: their decomposition and combustion are multistage, accompanied by phase transitions, and may lead to fixed-bed mechanical instability and the non-uniformity of air distribution over the cross-section. To clarify the role of physicochemical factors (fuel composition and properties, reactor conditions), data from different sources are compared. The review shows that the fixed-bed agglomeration regimes can, in a rough approximation, be classified by the sintering mechanism (due to the melting of the mineral part or the organic part), with the following search for each mechanism realisation conditions by comparing the fuel properties and characteristic temperatures. Attempts to theoretically describe and numerically simulate the agglomeration phenomenon as a change in the structure of a reacting dispersed medium are also considered: the main directions in which such approaches can be developed are indicated.

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Section: Resultsmentioning

confidence: 99%

Particle Agglomeration of Biomass and Plastic Waste during Their Thermochemical Fixed-Bed Conversion

Donskoy

2023

Energies

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“…Hybrid filtration combustion has been studied for such types of gasification: coal gasification [20], plant biomass gasification [25], wood gasification [30], and gasification of mixtures of polyethylene and wood [31]. The description of this process by mass and energy equations is given in [32].…”

Section: Introductionmentioning

confidence: 99%

“…The natural gas-supported gasification of polyethylene-wood mixtures in a porous bed reactor designed for semi-continuous operation is studied in [31]. Gasification conditions were optimized with a natural gas-to-air ratio of 0.8.…”

Section: Introductionmentioning

confidence: 99%

European Green Deal: An Experimental Study of the Biomass Filtration Combustion in a Downdraft Gasifier

Golub,

Tsyvenkova,

Kukharets

et al. 2023

Energies

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This study presents the experimental results obtained from hybrid filtration combustion using biomass pellets. The experiments were carried out using a porous media gasifier filled with pellets and inert material. The gasifying agent used was an air–steam mixture, with 40% being steam. The dependence of the temperature in the gasifier’s reaction zone from the volume percentage of inert porous material in the gasifier, the specific heat capacity of this material, as well as the air–steam blowing rate, was investigated. The multifactor experiment method was used. A maximum temperature of 1245 °C was achieved using 28 vol% of porous material with a heat capacity of 1000 J/(kg·°C) and at a blowing rate of 42 m3/h. The maximum hydrogen content in the syngas was 28 vol%. This was achieved at an air–steam blowing rate of 42 m3/h and 40 vol% porous material, with a heat capacity of 1000 J/(kg·°C). The calorific value of the syngas was 12.6 MJ/m3. The highest CO content in the gas was 28 vol% and was obtained at 20 vol% porous material with a heat capacity of 1000 J/(kg·°C) and a blowing rate of 42 m3/h. The obtained information is applicable in the design, management, and control of gas production by way of a hybrid filtration combustion process in a downdraft gasifier.

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Green hydrogen production based on the co-combustion of wood biomass and porous media

Dai

2022

Applied Energy

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Natural gas-supported gasification of polyethylene and wood mixtures in a porous medium reactor

Cited by 11 publications

References 66 publications

Particle Agglomeration of Biomass and Plastic Waste during Their Thermochemical Fixed-Bed Conversion

Particle Agglomeration of Biomass and Plastic Waste during Their Thermochemical Fixed-Bed Conversion

European Green Deal: An Experimental Study of the Biomass Filtration Combustion in a Downdraft Gasifier

Green hydrogen production based on the co-combustion of wood biomass and porous media

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