Valorisation of waste tyre by pyrolysis in a moving bed reactor

Journal Article · Thu Jul 15 00:00:00 EDT 2010 · Waste Management

DOI:https://doi.org/10.1016/j.wasman.2009.10.001· OSTI ID:21357681

Aylon, E; Fernandez-Colino, A ^[1]; Murillo, R ^[1]; Navarro, M V; Garcia, T; Mastral, A M ^[1]

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1. Instituto de Carboquimica, CSIC, M Luesma Castan 4, 50018-Zaragoza (Spain)

The aim of this work is to assess the behaviour of a moving bed reactor, based on a screw transporter design, in waste tyre pyrolysis under several experimental conditions. Waste tyre represents a significant problem in developed countries and it is necessary to develop new technology that could easily process big amounts of this potentially raw material. In this work, the influence of the main pyrolysis process variables (temperature, solid residence time, mass flow rate and inert gas flow) has been studied by a thorough analysis of product yields and properties. It has been found that regardless the process operational parameters, a total waste tyre devolatilisation is achieved, producing a pyrolytic carbon black with a volatile matter content under 5 wt.%. In addition, it has been proven that, in the range studied, the most influencing process variables are temperature and solid mass flow rate, mainly because both variables modify the gas residence time inside the reactor. In addition, it has been found that the modification of these variables affects to the chemical properties of the products. This fact is mainly associated to the different cracking reaction of the primary pyrolysis products.

• OSTI ID: 21357681
• Journal Information: Waste Management, Vol. 30, Issue 7; Other Information: DOI: 10.1016/j.wasman.2009.10.001; PII: S0956-053X(09)00423-1; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0956-053X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
CHEMICAL PROPERTIES
CRACKING
DEVELOPED COUNTRIES
FLOW RATE
GAS FLOW
MODIFICATIONS
PYROLYSIS PRODUCTS
PYROLYTIC CARBON
RAW MATERIALS
TIRES
VOLATILE MATTER
WASTES
YIELDS
CARBON
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
FLUID FLOW
MATERIALS
MATTER
NONMETALS
PYROLYSIS
THERMOCHEMICAL PROCESSES