Syngas from steam gasification of polyethylene in a conical spouted bed reactor

Syngas from steam gasification of polyethylene in a conical spouted bed reactor 1 Introduction</h5> The world’s overall consumption of plastics in 2010 was 230 million tones and the predictions are for an upward trend of 3% annual in developed countries and 10% in developing countries. Consequently, the development of recycling processes at industrial scale is urgent to avoid the environmental problems related to waste plastic landfill and contribute to intensifying the upgrading of oil, of which 8% is used in the production of plastics [1] . Amongst waste plastic valorisation routes, thermochemical processes have best perspectives and they have been developed to pilot and demonstration scale [2] . Pyrolysis is an interesting option for the treatment of polyolefins to obtain fuels and monomers [3,4] . Gasification is another alternative, given that it is a flexible process that allows operating with a wide range of plastics, mixed plastics and even combining different wastes, such as biomass [5,6] and coal [7,8] . Furthermore, depending on the gasification agent used, it is possible to direct the process towards the production of a gas fuel with low (using air) or high (using pure oxygen) heating value or a hydrogen rich syngas (using steam). The syngas produced is suitable for energy conversion systems such as http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fuel Elsevier

Syngas from steam gasification of polyethylene in a conical spouted bed reactor

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Publisher
Elsevier
Copyright
Copyright © 2013 Elsevier Ltd
ISSN
0016-2361
D.O.I.
10.1016/j.fuel.2013.03.022
Publisher site
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Abstract

1 Introduction</h5> The world’s overall consumption of plastics in 2010 was 230 million tones and the predictions are for an upward trend of 3% annual in developed countries and 10% in developing countries. Consequently, the development of recycling processes at industrial scale is urgent to avoid the environmental problems related to waste plastic landfill and contribute to intensifying the upgrading of oil, of which 8% is used in the production of plastics [1] . Amongst waste plastic valorisation routes, thermochemical processes have best perspectives and they have been developed to pilot and demonstration scale [2] . Pyrolysis is an interesting option for the treatment of polyolefins to obtain fuels and monomers [3,4] . Gasification is another alternative, given that it is a flexible process that allows operating with a wide range of plastics, mixed plastics and even combining different wastes, such as biomass [5,6] and coal [7,8] . Furthermore, depending on the gasification agent used, it is possible to direct the process towards the production of a gas fuel with low (using air) or high (using pure oxygen) heating value or a hydrogen rich syngas (using steam). The syngas produced is suitable for energy conversion systems such as

Journal

FuelElsevier

Published: Jul 1, 2013

References

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