Characterization of tars from a novel, pilot scale, biomass gasifier working under low equivalence ratio regime

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

doi:10.1016/j.renene.2020.06.042

Cited by 28 publications

(8 citation statements)

References 58 publications

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“…This analyser is capable to determine percental (volume) content of the following gases: CO, CO 2 , CH 4 , C n H m (dual beam infrared detector), H 2 (thermal conductivity detector) and O 2 (electrochemical detector) with 0.01% precision. The technology as well as the sampling track along with sampling methodology used are described in Čespiva et al [6], [13], [14].…”

Section: Gasification Processmentioning

confidence: 99%

Evaluation and Safety Assessment of Biomass-/Waste-Generated Producer Gas

Čespiva

Skřínský

Vereš

et al. 2022

WIT Transactions on Ecology and the Environment

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The production of synthetic gas and alternative liquid fuels, based on renewable and waste source materials, is an emerging topic. With growing energy demand and increasing CO2 concentration within the atmosphere, caused by excessive fossil fuels combustion, alternative ways of energy utilisation, storage and transformation are intensely being sought and developed. Combining technologies of gasification and Fischer-Tropsch catalytic synthesis of biomass/waste materials can provide not only a possibility to replace fossil fuels extraction, but it can partially solve the issue of growing amounts of unprocessed waste materials. The 200 kW power input technology for gasification of biomass/waste materials with sliding bed, cross/updraft reactor was used to perform experimental measurements of conversion of waste materials into producer gas. This gas, with potential to be used as a source gas for catalytic synthesis was examined from quality and safety points of view. The composition and suitability for its utilisation was evaluated, as well as safety assessment in terms of its explosivity was determined. The latter mentioned was carried out in 1 m 3 spherical explosion vessel to determine pressure rise during the explosion of the producer gas. The results showed interesting differences between measured data and mathematical model, probably caused by the presence of other substances, such as tar compound, solid particles and other pollutants.

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Section: Gasification Processmentioning

confidence: 99%

Evaluation and Safety Assessment of Biomass-/Waste-Generated Producer Gas

Čespiva

Skřínský

Vereš

et al. 2022

WIT Transactions on Ecology and the Environment

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“…The study suggested that modification in the syngas cleaning system could reduce wastewater disposal by up to 60%. Cespiva et al 55 investigated the biomass gasifier properties, which was developed in the Energy Research Center of the Technical University of Ostrava, especially focused on tar deposition under low load conditions and found very heartening results under the low load circumstances. An experimental study on biomass gasifier‐based power system has been conducted by Ram et al 56 and found IC engine energy efficiency up to 21.6%.…”

Section: Various Combinations Of Biomass Hresmentioning

confidence: 99%

Biomass‐based gaseous fuel for hybrid renewable energy systems: An overview and future research opportunities

2020

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Summary Growth in global energy demand, with major fossil fuel consumption, has induced detrimental environmental and social impacts. Therefore, in recent years, technologies focused on renewable energy utilization, including biomass energy, have evolved to meet the energy requirements. Bioenergy‐based power generation systems are among the best‐unutilized configurations to diminish reliance on fossil fuels. However, it is difficult to select a biomass‐based configuration for economical, sustainable, and reliable power generation. Understanding different possible configurations of biomass‐based energy systems, design parameters, system research gaps, and integration challenges in biomass‐based energy systems are important for further development and propagation. This paper presents a critical review of biomass‐based different hybrid configurations with solar, wind, fuel cell, micro‐hydro, geothermal, and diesel generator, and various designing parameters, challenges, and gaps with future scope. To restrict the scope of the review, only the gasification and anaerobic digestion related biomass electricity generation systems are considered. The analysis indicates that the biomass‐based hybrid energy systems can provide an eco‐friendly and cost‐effective solution, especially for off‐grid rural electrification. The solar radiation, load demand, fuel price, capacity shortage, interest rate, wind speed, biomass quantity, and electricity rate are among the most critical designing parameters in biomass‐based energy systems. The study provides valuable information to designers, researchers, and policy makers on the latest design constraints and relevant policies relating to biomass‐based hybrid energy systems.

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“…Gasification is a process that converts solid fuel into gas, which could allow the wider implementation of biomass to produce electricity on a small and commercial scale. However, in many cases, such units would have to operate within a single system with intermittent energy sources, thus having to cope with new flexibility requirements [2]. Maximizing the cleaning efficiency of energo gas is attractive in the worldwide challenge for low emission technology and in chemical process intensification.…”

Section: Previous Studiesmentioning

confidence: 99%

Maximizing the Safety Production of Energo Gas - Determination of Explosion Characteristics

Skřínský

Koloničný

2020

MATEC Web Conf.

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The article is focused on the determination of explosion characteristics of energo gas produced from an industrial scale, biomass gasifier. The results underline that the composition of energo gas from industrial technology has a significant impact on the gas explosion characteristics. The gas explosion experiments were carried out in the spherical 20-L explosion vessel. The Real gas was sampled into the 50-L Tedlar bags, introduced into the vessel and mixed with air by a partial-pressure method. Absolute explosion pressure for energo gas air mixture was higher than 6 bar for the energo gas optimum concentration close to 30 vol. % of fuel. The maximum rate of pressure rise and the deflagration index have been determined. Obtained explosion characteristics could be used to describe the explosion process and to rate the effects of an explosion.

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Characterization of tars from a novel, pilot scale, biomass gasifier working under low equivalence ratio regime

Cited by 28 publications

References 58 publications

Evaluation and Safety Assessment of Biomass-/Waste-Generated Producer Gas

Evaluation and Safety Assessment of Biomass-/Waste-Generated Producer Gas

Biomass‐based gaseous fuel for hybrid renewable energy systems: An overview and future research opportunities

Maximizing the Safety Production of Energo Gas - Determination of Explosion Characteristics

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