Two-phase pyrolysis modelling of wooden waste

Gheorghe-Bulmau, Cora; Dinu, R.; Mărculescu, Cosmin; Badea, Adrian; Apostol, Tiberiu

doi:10.2495/wm080041

Cited by 6 publications

(5 citation statements)

References 2 publications

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“…By subjecting the raw biomass to a thermal decomposition process, i.e., pyrolysis, it was possible to obtain the calorific values comparable to other solid fuels such as coal, lignite or wood. Similar calorific values of biochars produced have been reported by other authors, as shown in Table 5 [59][60][61]. The analyses showed no content of total nitrogen in the samples assessed, and the processes of pyrolysis did not produce any change in this parameter.…”

Section: Discussionsupporting

confidence: 88%

Pyrolysis as a Method for Processing of Waste from Production of Cultivated Tobacco (Nicotiana tabacum L.)

Saletnik,

Fiedur,

Kwarciany

et al. 2024

Sustainability

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Because of the current energy crisis, researchers are looking into new potential substrates for production of biofuels and for possible ways to enhance their parameters. In line with such efforts, the current study focuses on the feasibility of processing waste from the production of cultivated tobacco. The aim of this study was to assess the potential of tobacco waste as a raw material for the production of solid biofuels, such as biochar produced through pyrolysis, and to determine its basic physicochemical properties, compared to other materials used for the production of green fuels. The analyses showed calorific values of 16.16 MJ kg−1 for the raw biomass and those in the range of 24.16–27.32 MJ kg−1 for the products of pyrolysis conducted at temperatures of 400–500 °C and with a heating time in the range of 5 to 15 min. To address the safety-related issues, the study also measured the explosion index (Kst max), which, in the raw biomass, amounted to 72.62 bar s−1 and in the biochar was in the range between 82.42 and 88.11 bar s−1. The registered maximum explosion pressure was 7.37 bar in the case of raw biomass, whereas in the biochars, the value ranged from 8.09 to 8.94 bar. The findings show that tobacco waste has parameters comparable to those identified in the case of other solid biofuels, whereas the process of pyrolysis enhances the energy-related parameters without increasing the explosion class of the product.

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Section: Discussionsupporting

confidence: 88%

Pyrolysis as a Method for Processing of Waste from Production of Cultivated Tobacco (Nicotiana tabacum L.)

Saletnik,

Fiedur,

Kwarciany

et al. 2024

Sustainability

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“…During pyrolysis, most unstable matters, such as C containing materials [14] , volatile matter of organic matters [15,16] , and N containing matters [17] could lose, but aromatic compound may be detained [18] and which lead more C content in biochar than raw materials.…”

Section: Discussionmentioning

confidence: 99%

Research on Physical and Chemical Properties of Different Biochars

Huang¹,

Chen²,

Sun³

et al. 2012

AMR

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To provide instructive information for biochar research based on utilization of agricultural residues scientifically, we investigated physical and chemical properties of different biochars. According to a registered patent method from our institute, and a simple corncob pellet kiln and relevant biochar prepare method, we chose maize straw, rice hull and corncob et al. as raw materials and measured micro-structure, element composition, specific surface area, total pore volume and average pore diameter of these materials. Results showed that biochars from all materials behaved smoothly, clear structure and average C content 60%, average ash content less than 33%. All biochars were alkaline. With high porosity, peanut hull biochar and mushroom matrix biochar tended to be designed as fertilizer carrier in agriculture. In terms of nutrients analysis, maize straw and corncob were qualified to be applied to low potassium content and low pH soil, but rice hull biochar should be used on low phosphorous content soil. There would be a wide applying spectrum of soil for rice straw biochar.

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“…At the same time, biochar directly carbonized and returned to the field plays an important role in crop growth, soil water storage and fertilizer conservation, improving fertilizer utilization rate, increasing yield and improving quality. The technology of direct carbonization of biochar into fields, whether as an application form of biochar or a new potential form of fertility, is of great significance to the sustainable development of agriculture, the realization of a virtuous cycle of agricultural production and the increase of farmers' production and income [19] .…”

Section: Soil Modificationmentioning

confidence: 99%

Research progress in preparation and application of biological carbon

2023

AJEE

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Biochar is a carbonaceous material generated by pyrolysis of biomass under the condition of low oxygen content. Because of its large specific surface area, developed pore structure and rich oxygen-containing functional groups on the surface, it has a good adsorption and fixation effect on organic pollutants in soil, water and sediments. It is considered as an ideal and universal adsorption material and is widely used in the field of environmental pollution control. This paper reviews the preparation, application and defects of biochar. In order to provide reference value for the improvement of potential value and utilization rate of biochar.

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Two-phase pyrolysis modelling of wooden waste

Cited by 6 publications

References 2 publications

Pyrolysis as a Method for Processing of Waste from Production of Cultivated Tobacco (Nicotiana tabacum L.)

Pyrolysis as a Method for Processing of Waste from Production of Cultivated Tobacco (Nicotiana tabacum L.)

Research on Physical and Chemical Properties of Different Biochars

Research progress in preparation and application of biological carbon

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