Evaluation of the performance of the cross/updraft type gasification technology with the sliding bed over a circular grate

Čespiva, Jakub; Niedźwiecki, Łukasz; Vereš, Ján; Skřínský, Jan; Wnukowski, Mateusz; Borovec, Karel; Ochodek, Tadeáš

doi:10.1016/j.biombioe.2022.106639

Cited by 11 publications

(8 citation statements)

References 29 publications

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“…52 In the cross-draft design, biomass is loaded from the top or the bottom, while the gasification media enter the reactor from the side of the reactor. 55 Its high flexibility, short start-up time duration and low reactor height could be considered as its main advantages. Large and also small sizes of biomass particles cannot be used in this system due to the easy blockage of the reactor.…”

Section: Biorefinery Based On the Thermochemical Treatment-commercial...mentioning

confidence: 99%

A review on thermochemical based biorefinery catalyst development progress

Gholizadeh,

Castro,

Fabrega

et al. 2023

Sustainable Energy Fuels

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Section: Biorefinery Based On the Thermochemical Treatment-commercial...mentioning

confidence: 99%

A review on thermochemical based biorefinery catalyst development progress

Gholizadeh,

Castro,

Fabrega

et al. 2023

Sustainable Energy Fuels

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“…The reactor worked in an autothermal regime, which required no additional energy input from an external source. A more detailed description of the performance of this technology on wood biomass was included in the study of Čespiva et al [37], on torrefied biomass in the study of Čespiva et al [38], and on solid recovered fuel in another work of Čespiva et al [39].…”

Section: Gasification-pilot-scale Rig and Gas Analysismentioning

confidence: 99%

“…The hot Figure 1. Cross/updraft gasification reactor with a sliding bed over circular grate [37]. Gr-circular grate; B-fuel input; Fb-freeboard; A-oxidising media input; G-producer gas output; C-residual char output; Bd-sliding bed; N-star-up flame pipe; Tc-thermocouple.…”

Section: Gasification-pilot-scale Rig and Gas Analysismentioning

confidence: 99%

Co-Gasification of Pistachio Shells with Wood Pellets in a Semi-Industrial Hybrid Cross/Updraft Reactor for Producer Gas and Biochar Production

Ryšavý,

Čespiva,

Kuboňová

et al. 2024

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The possibilities of pistachio shell biochar production on laboratory-scale gasification and pyrolysis devices have been described by several previous studies. Nevertheless, the broader results of the pistachio shell co-gasification process on pilot-scale units have not yet been properly investigated or reported, especially regarding the detailed description of the biochar acquired during the routine operation. The biochar was analysed using several analytical techniques, such as ultimate and proximate analysis (62%wt of C), acid–base properties analysis (pH 9.52), Fourier-transform infrared spectroscopy (the presence of –OH bonds and identification of cellulose, hemicellulose and lignin), Raman spectroscopy (no determination of Id/Ig ratio due to high fluorescence), and nitrogen physisorption (specific surface 50.895 m2·g−1). X-ray fluorescence analysis exhibited the composition of the main compounds in the biochar ash (32.5%wt of Cl and 40.02%wt of Na2O). From the energy generation point of view, the lower heating value of the producer gas achieved 6.53 MJ·m−3 during the co-gasification. The relatively high lower heating value of the producer gas was mainly due to the significant volume fractions of CO (6.5%vol.), CH4 (14.2%vol.), and H2 (4.8 %vol.), while hot gas efficiency accomplished 89.6%.

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“…In addition, the wastewater may contain larger amounts of organic suspended solids, which include pieces of leather and leather dust from operations prior to the wet workshop. The advantage of this type of suspension is that it does not undergo putrefactive processes, since it comes from hides, which are resistant to bacteria [43].…”

Section: Sewage Generated During Tanning Processesmentioning

confidence: 99%

The Circular Economy in the Management of Waste from Leather Processing

et al. 2023

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The tanning industry generates significant amounts of solid waste and post-production wastewater, which should be managed in accordance with the principles of the circular economy. Waste is generated at various technological stages of production. This comprises mainly solid waste and leachate. A comprehensive solution to the problem of disposal of this waste is very important from economic and environmental points of view. This work presents research for a technological production line designed for the comprehensive processing of post-production residues. In the present paper, the authors present an analysis related to the possibility of processing leather flesh side (mizdra) as a substrate for methane fermentation. The study showed an increased biogas production from solid waste after enzymatic hydrolysis up to 248 Nm3/Mg. Preliminary research on the system designed for pre-treatment of sewage from the technological line is also presented. The study showed a COD reduction of more than 30%. The possibility of energy management of the solid fraction directly from the processes carried out is demonstrated.

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Evaluation of the performance of the cross/updraft type gasification technology with the sliding bed over a circular grate

Cited by 11 publications

References 29 publications

A review on thermochemical based biorefinery catalyst development progress

A review on thermochemical based biorefinery catalyst development progress

Co-Gasification of Pistachio Shells with Wood Pellets in a Semi-Industrial Hybrid Cross/Updraft Reactor for Producer Gas and Biochar Production

The Circular Economy in the Management of Waste from Leather Processing

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