Pyrolysis of scrap tyres pretreated by waste coal tar

Ouyang, Shaobo; Xiong, Dan; Li, Yang; Zou, Laixi; Chen, Jifan

doi:10.1016/j.crcon.2018.07.003

Cited by 19 publications

(9 citation statements)

References 38 publications

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“…Scrap vehicle tyres are a huge problem throughout the world. In 2016, it was estimated that over 1.5 billion scrap tyres are discarded annually, weighing about 17 million tons (S. Ouyang et al, 2018). Vehicle tyres are generally made up of more than a hundred different materials.…”

Section: End Products Of Pyrolysismentioning

confidence: 99%

“…Pre-treatment of scrap tyres by immersion in waste coal tar prior to pyrolysis was found to improve the pyrolysis efficiency and the quality of the produced tar which contained more light fractions. Other pre-treatment methods include soaking of scrap tyres in organic solvents which will cause scrap tyres to swell and reduce their tensile strength (S. Ouyang et al, 2018).…”

Section: End Products Of Pyrolysismentioning

confidence: 99%

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Pyrolysis in the Chemical Industry and Its Major Industrial Applications

Ibrahim

2023

IST

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Pyrolysis is an irreversible thermochemical treatment process of materials at elevated temperatures in an inert atmosphere. Pyrolysis is used heavily in the chemical industry to produce many forms of carbon and other chemicals from petroleum, coal, wood, oil shale, biomass or organic waste materials, and it is the basis of several methods for producing fuel from biomass. The end products of pyrolysis include solid residual coproducts and ash, noncondensable gases and condensable liquids. These products can be controlled by optimizing pyrolysis parameters such as temperature and residence time.

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Section: End Products Of Pyrolysismentioning

confidence: 99%

Section: End Products Of Pyrolysismentioning

confidence: 99%

Pyrolysis in the Chemical Industry and Its Major Industrial Applications

Ibrahim

2023

IST

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“…Pyrolysis can play a crucial role in the clean conversion of waste tires. It is a thermochemical decomposition process that occurs at elevated temperatures and low pressures in the absence of oxygen which transforms tires into oil, solid char, and low-molecular liquids or gases [4,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A Review of the Desulfurization Processes Used for Waste Tire Pyrolysis Oil

Hossain

Choi

2021

Catalysts

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The increasing global population and the rapid industrial development associated therewith have increased the demand for fossil-derived fuel oils. The sources of fossil fuels are limited, and many studies have been being conducted to find alternative fuel sources. Waste tire pyrolysis oil (WTPO) attracts considerable attention as an alternative fuel because its properties are similar to those of diesel oil. However, WTPO has a high sulfur content of >1.0 wt%, which is above the environmental standard limit of 0.1 wt%; therefore, it cannot be used in engines directly. It is thus highly necessary to remove sulfur compounds from tire-derived oils. However, finding an appropriate and environmentally friendly process is proving difficult. This review article presents the various desulfurization methods used to removal sulfur from WTPO, such as hydrodesulfurization (HDS), oxidative desulfurization (ODS), ultrasound-assisted oxidative desulfurization (UAOD), and acid treatment. Of these, HDS is the most expensive as it involves high consumption of hydrogen, high temperature (~450 °C), and high pressure (~200 bar), whereas UAOD is an efficient and economic method of reducing the sulfur content of WTPO.

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“…In 2010, tire production reached 12 million, while in 2011, it reached 14.5 million, i.e., the average increase in tire production reached 1.5 million per year [1][2][3]. Tire composition (as seen in Table 1), which is complex and susceptible to the environment, is a consideration in controlling tire production, especially its waste treatment [3,4], where only 15-20 % of the composition of tires degraded (microbiological processes) [5], while the rest is neglected without special handling. Tires with the highest polymer rubber composition are difficult to decompose through biological processes, therefore, the treatment is performed only through the vulcanization process.…”

Section: Introductionmentioning

confidence: 99%

“…1). Besides that, its combustion process can cause air pollution, which contains toxic gas emissions [3,7,8] and which has a negative impact on human health. Based on those impacts, it can be concluded that the vulcanization process is not economical and harmful to the environment [9].…”

Section: Introductionmentioning

confidence: 99%

An effect analysis of cooling water direction towards condensate oil from scrap tires

Suyitno

Pane

Libyawati

et al. 2021

EEJET

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The application of pyrolysis for the thermal decomposition of tire waste can be taken as the ideal concept to reduce and recycle tire waste. The product of the process can produce condensate oil, a typical oil that is close to crude oil properties. The critical aspect of the pyrolysis process is the design of the reactor, particularly for the condenser where the rate of heat transfer contributes to the overall quality and quantity of the produced condensate oil. This study focused on the effect of water flow direction on the condensation process of pyrolysis gas. The quantity and quality of the produced oil are examined to observe the effect of the condensation process. Two different water flow directions are tested in the process, namely, counter flow and parallel flow direction. The effect of water flow direction in the condenser clearly affects the pyrolysis process to produce the condensate oil. Based on the production quantity, the counter flow condenser is able to produce 355 ml of condensate oil while the parallel flow one merely 290 ml. Based on the quality of the produced condensate oil, the counter flow condenser is generally better than the parallel flow one where the density, flash point and viscosity are close to crude oil properties. The rate of heat transfer from the condenser to the pyrolysis gas is the main factor that contributes to the quality and quantity of the condensate oil. The average heat transfer for the counter and parallel flow is 2,728 W and 1,865 W, respectively. It can be said that using the counter flow condenser for the pyrolysis reactor can improve the quality and quantity of the condensate oil

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Pyrolysis of scrap tyres pretreated by waste coal tar

Cited by 19 publications

References 38 publications

Pyrolysis in the Chemical Industry and Its Major Industrial Applications

Pyrolysis in the Chemical Industry and Its Major Industrial Applications

A Review of the Desulfurization Processes Used for Waste Tire Pyrolysis Oil

An effect analysis of cooling water direction towards condensate oil from scrap tires

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