Characterization and potential applications of pyrolytic char from ablative pyrolysis of used tires

Helleur, Robert; Popovic, Nevena; Ikura, M; Stanciulescu, Maria; Liu, D

doi:10.1016/s0165-2370(00)00207-2

Cited by 198 publications

(154 citation statements)

References 14 publications

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“…Thermolysis is an established method of processing scrap tyres that offers an alternative to their disposal in landfills, and can result in the recovery of useful products (Helleur et al, 2001). Recently, a team from the Consejo Superior de Investigaciones Científicas (CSIC) in conjunction with ENRECO 2000 Ltd. developed the GRAUTHERMIC-Tyres process for the thermolytic treatment of granulated scrap types (GSTs) (López et al, 2011(López et al, , 2012a(López et al, , 2012b.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of activated carbon from the char produced in the thermolysis of granulated scrap tyres

López

Centeno

Rodríguez

et al. 2013

Journal of the Air & Waste Management Association

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The char produced in the thermolysis of granulated scrap tyres has few market outlets, reducing the economic viability of the thermolytic process. This paper reports the potential of this char as a low-cost precursor of porous carbons. The tyre-derived char was demineralized in either alkaline or acidic media to reduce its ash, zinc, sulfur, and silica contents. The lowest impurity content was achieved with an HNO 3 /H 2 O treatment. The resulting demineralized char was then subjected to activation by KOH or CO 2 . The Brunauer-Emmett-Teller (BET)-specific surface area of the activated carbon produced by the KOH treatment was 242 m 2 /g, whereas that of the CO 2 -activated carbon was 720 m 2 /g. The textural properties of the latter product were similar to those of some commercial activated carbons. The use of tyre-derived char as a precursor of porous carbons could render the thermolytic treatment of scrap tyres more economically attractive.Implications: Char produced in thermolysis of granulated scrap tyres has a few market outlets; in this paper an alternative for its use is presented. The char was converted into activated carbon with textural properties similar to those of some commercial activated carbons. This process could render the thermolytic treatment of scrap tyres more economically attractive.

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of activated carbon from the char produced in the thermolysis of granulated scrap tyres

López

Centeno

Rodríguez

et al. 2013

Journal of the Air & Waste Management Association

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“…Europe, the USA and Japan together generate more than 5x10 6 tonnes of scrap tires a year 1 . Other world communities like South East Asia have also recorded a rapid growth in automobile ownership and, as a consequence, have increased scrap tire generation.…”

Section: Introductionmentioning

confidence: 99%

Preparation of activated charcoal adsorbent from waste tire

Barai

Jha

2012

Sci World

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Activated carbons were prepared from waste tire in two different routes. Some physical properties of thus prepared activated carbons were measured and the characterization of their phases was done by XRD measurement. The adsorption isotherms of methylene blue were simulated by the Langmuir and Freundlich isotherms. The Langmuir isotherms were found to have better fitting with Q max values 0.227, 0.255 and 0.256 mmol/g for the activated carbons prepared in air, nitrogen, nitrogen and steam respectively while it was 0.275 mmol/g for activated carbon impregnated with H 3 PO 4 . The overall reaction was found to be pseudo-second order with the rate constant of 8.314 × 10 -4 Lg/(mmolmin). The surface area of the best prepared activated carbon was 334.2 m 2 /g.

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“…During the pyrolysis process usually 24 -30 wt % of the pyrolysis gas, 33 -40 wt % of the pyrolysis liquid and 31 -41 wt % of the pyrolysis coke were created which was demonstrated with regard to process temperature selection and also on the basis of our experiments (Helleur et al, 2001;Xiqiang et al, 2011).…”

Section: Resultsmentioning

confidence: 56%

Energy Balance Sheet of a Semi Operational Thermic System

Honus¹,

Sassmanová²,

Frantík³

et al. 2014

Chemical and Process Engineering

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The article is focused onthe energetical balance of a technical system for the conversion of crushed tyres by pyrolysis. Process temperatures were set in the range from 500 to 650°C. Mass input of the material was 30 kg per hour. The aim of the article is to answer the following questions as regards the individual products: Under which process conditions can the highest quality of the individual products related to energy be reached? How does the thermal efficiency of the system change in reaction to various conditions of the process?On the basis of the experimental measurements and calculations, apart from other things, it was discovered that the pyrolysis liquid reaches the highest energetic value, i.e. 42.7 MJ.kg -1 , out of all the individual products of the pyrolysis process. Generated pyrolysis gas disposes of the highest lower calorific value 37.1 MJ.kg . From the energetic balance, the thermal efficiency of the experimental unit under the stated operational modes ranging from about 52 % to 56 % has been estimated. Individual findings are elaborated on detail in the article.

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Characterization and potential applications of pyrolytic char from ablative pyrolysis of used tires

Cited by 198 publications

References 14 publications

Preparation and characterization of activated carbon from the char produced in the thermolysis of granulated scrap tyres

Preparation and characterization of activated carbon from the char produced in the thermolysis of granulated scrap tyres

Preparation of activated charcoal adsorbent from waste tire

Energy Balance Sheet of a Semi Operational Thermic System

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