Roles of ruthenium on catalytic pyrolysis of waste tire and the changes of its activity upon the rate of calcination

Dũng, Nguyễn Anh; Tanglumlert, Walairat; Wongkasemjit, Sujitra; Jitkarnka, Sirirat

doi:10.1016/j.jaap.2010.01.004

Cited by 24 publications

(9 citation statements)

References 35 publications

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“…Using Ru as a catalyst in tyre pyrolysis has been considered in some research. Using Ru/SBA-1 in tyre pyrolysis resulted in higher gaseous products yields of up to around two times greater than that of non-catalytic pyrolysis [129]. The highest activity of this catalyst is attributed to the small ruthenium particle size and high sulfur content.…”

Section: Catalytic Pyrolysismentioning

confidence: 95%

Scrap Tyre Management Pathways and Their Use as a Fuel—A Review

2016

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Abstract:This article provides a review of different methods for managing waste tyres. Around 1.5 billion scrap tyres make their way into the environmental cycle each year, so there is an extreme demand to manage and mitigate the environmental impact which occurs from landfilling and burning. Numerous approaches are targeted to recycle and reuse the tyre rubber in various applications. Among them, one of the most important methods for sustainable environmental stewardship is converting tyre rubber components into bio-oil. In this study, scrap tyre management techniques including landfill, retreading, recycling, combustion, and conversion to liquid fuels was reviewed (including gasification, hydrothermal liquefaction, and pyrolysis). The effects of parameters such as reactor types, pyrolysis temperature, and catalyst on the oil, gas and solid products in pyrolysis process were investigated.

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Section: Catalytic Pyrolysismentioning

confidence: 95%

Scrap Tyre Management Pathways and Their Use as a Fuel—A Review

2016

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“…The coke formation has been related to the concentration of polycyclic aromatics and polar aromatics compounds, which could condense within catalyst pores. Hence, the catalyst stability can be improved by reducing the formation of these species during the pyrolysis process as have been reported elsewhere [10][11][12].…”

Section: Introductionmentioning

confidence: 89%

“…Besides, Ni-catalyst supported on SiO2 did not promote reactions conducting to the formation of polyaromatic compounds due to its low acidity, compared with bifunctional Ni-catalysts supported on zeolites [17]. This characteristic could enhance the catalyst stability as the coke deposits have been related to the formation of polycyclic aromatics and polar aromatics compounds [10][11][12]. Figure S4 shows the catalyst and support acidity as determined by TPD-NH3.…”

Section: Evaluation Of Pyrolytic Products Via Py-gc/ms Analysismentioning

confidence: 99%

“…More recently, Jitkarnka et al [10,11] reported the production of light olefins and light oil from waste tires, using Ru supported over MCM-41 and SBA-15. In both cases, catalysts' presence increased the yield of light oil with a significant concentration of monoaromatics and olefins and a minor content of poly-and polararomatics compared with non-catalytic pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

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Thermal Behavior, Reaction Pathways and Kinetic Implications of Using a Ni/SiO2 Catalyst for Waste Tire Pyrolysis

Osorio-Vargas

Lick

Sobrevía

et al. 2021

Waste Biomass Valor

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Catalytic pyrolysis has been used to upgrading the quality of pyrolytic liquids. Herein, we report a comprehensive study on the catalytic pyrolysis of waste tires using Ni/SiO2 as catalysts. The analyses were carried out by combining thermogravimetry (TGA), TGA interfaced to a Fourier Transform Infrared spectrometer (TGA-FTIR), and pyrolysis coupled to gas chromatography/mass spectrometer (Py-GC/MS) techniques. During waste tire decomposition, the main functional groups detected in the FTIR were alkenes, aromatics, and heteroatoms-containing groups such as nitrogen, sulfur, and oxygen. Meanwhile, by Py-GC/MS were identified mainly D,L-limonene, isoprene, benzene, toluene, xylenes (BTX), and p-cymene. The Py-GC/MS experiments at three different temperatures (350, 400, and 450 °C) suggested an effect of the catalyst on product distribution. The Ni catalyst promoted cyclization reactions and subsequently aromatization, leading to an improved vapors composition. The use of iso-conversional kinetic models along with master plots allows proposing a multiple-step reaction mechanism, which was well described by the Avrami-Erofeev, Random Scission, and truncated Sestak-Berggren models. The values of activation energies show differences for the catalyzed and uncatalyzed pyrolysis (111.0 kJ mol -1 and 168.4 kJ mol -1 ), validating the effectivity of Ni/SiO2. Finally, the thermal Biot (>1) and Py I and Py II numbers (10 -3

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“…The main advantages of pyrolysis include compactness, simple equipment, low pressure operation, negligible waste product and high energy conversion efficiency of the order of 83% (Prakash et al 2011). In the last three decades, researchers have documented their research works adopting different methods of pyrolysis such as vacuum pyrolysis (Pakdel et al 1991 andMirmiran et al 1992), flash pyrolysis (Edwin Raj et al 2013), fluidized bed pyrolysis (Kaminsky et al 2009) steam pyrolysis (Kalitko et al 2010), catalytic pyrolysis (Dung et al 2010), removal of sulfur from tire derived fuel by pyrolysis (Unapumnuk et al 2008).The principle products obtained from pyrolysis of waste automobile tires are tire pyrolysis oil (TPO), pyrogas, and carbon black. The percentages of these products vary depending on nature of feedstock, heating rate, heat input, method of pyrolysis, nature of condensation.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of diethyl ether addition on the performance and emissions of a diesel engine

Tudu

Murugan

Patel

2015

International Journal of Ambient Energy

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Recent investigations was utilization of light fraction pyrolysis oil (LFPO) in diesel engine, which is obtained from a tire recycling plant. The 40LFPO blend, which comprising 40% LFPO and 60% diesel composition gave better performance and lower emissions than the blends containing 20LFPO,60LFPO and 80LFPO. The ignition delays of the blends were longer than that of diesel fuel, because of their lower cetane numbers. The aim of the study is to effect the adding small quantities of Diethyl ether (DEE) whose cetane number is 125, to 40LFPO on the engine behavior in terms of performance parameters and exhaust emissions. The percentage of DEE was varied from 1% to 4% in steps of 1% on a volume basis. The results of the performance and emission parameters of the engine run on the 40LFPO-DEE blends were evaluated, compared with the diesel operation of the same engine and presented in this paper.

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Roles of ruthenium on catalytic pyrolysis of waste tire and the changes of its activity upon the rate of calcination

Cited by 24 publications

References 35 publications

Scrap Tyre Management Pathways and Their Use as a Fuel—A Review

Scrap Tyre Management Pathways and Their Use as a Fuel—A Review

Thermal Behavior, Reaction Pathways and Kinetic Implications of Using a Ni/SiO2 Catalyst for Waste Tire Pyrolysis

Experimental study of diethyl ether addition on the performance and emissions of a diesel engine

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