Study of the effects of temperature on syngas composition from pyrolysis of wood pellets using a nitrogen plasma torch reactor

Muvhiiwa, Ralph; Sempuga, Baraka Celestin; Hildebrandt, Diane; Walt, Jaco van der

doi:10.1016/j.jaap.2018.01.014

Cited by 37 publications

(10 citation statements)

References 24 publications

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“…A reason for this is the generation of an energy-rich fraction such as C 2 at 450 • C and maximum CH 4 up to 600 • C [88]. Notably, the trends for the evolution of these gas species in this range of temperatures could be different based on the process conditions, feedstock compositions and reactor configurations [53,93]. Furthermore, the progressive complex consecutive reactions for the generation of each species through pyrolysis and the consequent partial/complete gasification can be found elsewhere [92,94,95].…”

Section: Temperature Vs Syngas Calorific Valuementioning

confidence: 99%

Managing Non-Sewered Human Waste Using Thermochemical Waste Treatment Technologies: A Review

et al. 2021

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The utilisation of micro-scale thermal treatment technologies for non-sewered applications has been emerging as a prominent route for the safe treatment and disposal of high water content hazardous feedstock. This study provides a comprehensive review of the technological concepts practiced up to date in commercial/pilot and small scales for various types of solid fuels. The respective challenges are critically described and discussed to aid in the selection of promising technology for on-site sanitary applications. Furthermore, the challenges observed with the nominated (pyrolysis) technology are discussed in detail and addressed. This study suggests rapid energy recovery from by-products primarily made up of the highest yield of syngas with a desirable calorific value. The optimum operating ranges are discussed to ensure a reliable thermal conversion of sludge materials considering the application constraints and technology drawbacks. However, further studies are needed to investigate the uncertainties regarding emissions, energy consumption and overall associated costs.

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Section: Temperature Vs Syngas Calorific Valuementioning

confidence: 99%

Managing Non-Sewered Human Waste Using Thermochemical Waste Treatment Technologies: A Review

et al. 2021

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“…Plasma technology has been applied for converting the biomass or agriculture waste to hydrogen and methane production, and it creates an opportunity for reducing the environmental impact of petroleum-based fuel and generate a useful syngas product ( Chen et al, 2008 ; Tsai and Chen, 2009 ; Wang et al, 2010 ; Lin et al, 2014 ; Huang et al, 2016 ; Muvhiiwa, 2018 ). In the plasma gasification, the oxidation reaction and conversion reaction occur during the in the plasma reactions.…”

Section: Degradation Of Contaminants In Plasma Technologymentioning

confidence: 99%

“…Conversion of cellulose is related to dehydration reaction to form the char where it competes with each other ( Lin et al, 2014 ). Muvhiiwa et al (2018) found that temperature plays an integral role in the biomass conversion with the value of 82% at 1000 °C, and may prevent the production of tar from the wood pellets. 800 – 900 °C of reaction temperature for biomass conversion was recommended by Higman and van der Burgt (2008) .…”

Section: Degradation Of Contaminants In Plasma Technologymentioning

confidence: 99%

“…Recently, plasma technology has been applied to remove pollutants from hazardous waste ( Cubas et al, 2015 ; Sanito et al, 2020a ), wastewater ( Zhang et al, 2021 , Zhou et al, 2021a , Zhou et al, 2021b ), agriculture products, and foods and even generate syngas from the biomass ( Muvhiiwa et al, 2018 ). The reactive species in plasma system plays an integral role in the degradation of pollutants ( Locke and Shih, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

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Degradation of contaminants in plasma technology: An overview

Sanito

You

Wang

2022

Journal of Hazardous Materials

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The information of plasma technologies applications for environmental clean-up on treating and degrading metals, metalloids, dyes, biomass, antibiotics, pesticides, volatile organic compounds (VOCs), bacteria, virus and fungi is compiled and organized in the review article. Different reactor configurations of plasma technology have been applied for reactive species generation, responsible for the pollutants removal, hydrogen and methane production and microorganism inactivation. Therefore, in this review article, the reactive species from discharge plasma are presented here to provide the insight into the environmental applications. The combinations of plasma technology with flux agent and photocatalytic are also given in this review paper associated with the setup of the plasma system on the removal process of metals, VOCs, and microorganisms. Furthermore, the potential of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) inactivation via plasma technology is also described in this review paper. Detailed information of plasma parameter configuration is given to support the influence of the critical process in the plasma system to deal with contaminants.

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“…Temperature: Temperature influences the yield and composition of the syngas [72,73] and the production of tar and ash. The increase in gasification temperature gives rise to an increase in gas formation and a subsequent decrease in tar and char yields [74].…”

mentioning

confidence: 99%

A Critical Review of SCWG in the Context of Available Gasification Technologies for Plastic Waste

Ciuffi

Chiaramonti

Rizzo³

et al. 2020

Applied Sciences

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End of life packaging is nowadays one of the major environmental problems due to its short usage time, the low biodegradability, and the big volume occupied. In this context, gasification is one of the most promising chemical recycling techniques. Some non-recyclable or non-compostable waste gasification plants are already operating such as Enerkem Alberta Biofuels in Canada or the Sierra’s FastOx Pathfinder in California. In this review, we have examined works about plastic gasification from the last fifteen years with a specific focus on polyolefin (PP, PE), plastics mix, and co-gasification of plastic with biomass. For each of these, the best operating conditions were investigated. A very in-depth section was dedicated to supercritical water gasification (SCWG). The most used reactors in gasification processes are fluidized bed reactors together with air or steam as gasifying agents. Tar removal is commonly performed using olivine, dolomite, or nickel based catalysts. SCWG has numerous advantages including the inhibition of tar and coke formation and can be used to remove microplastics from the marine environment. In co-gasification of plastic material with coal or biomass, synergistic effects are observed between the raw materials, which improve the performance of the process, allowing to obtain higher gas yields and a syngas with a high energy content.

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Study of the effects of temperature on syngas composition from pyrolysis of wood pellets using a nitrogen plasma torch reactor

Cited by 37 publications

References 24 publications

Managing Non-Sewered Human Waste Using Thermochemical Waste Treatment Technologies: A Review

Managing Non-Sewered Human Waste Using Thermochemical Waste Treatment Technologies: A Review

Degradation of contaminants in plasma technology: An overview

A Critical Review of SCWG in the Context of Available Gasification Technologies for Plastic Waste

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