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Fixed bed gasification of renewable RDF for sustainable power generation

Lookup NU author(s): Dr Murat Dogru, Omer Calkan, Professor Galip Akay


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The UK is expected to become one of the world's strongest markets for gasification. This is driven by both the impact of the EU landfill directive and government recognition of the need to generate energy from domestic and industrial waste, particularly from advanced new technologies. The cost of landfill is increasing globally in particular, special industrial waste which has a higher disposal cost. The introduction of the climate change levy has also hastened the need to generate renewable sources of tax exempt energy. During the recent decade ITI Energy in conjunction with Newcastle University (UK) has devoted considerable research and development into biomass and RDF down-updraft combined fixed-bed gasification systems. These systems are suitable for CHP technology. ITI Energy can competitively offer gasification plants for a fuel input up to 1000 kg/hr (4 MWTH) with power efficiencies in excess of 30% and simultaneous delivery of steam for industrial use or hot water for district heating. The proposed article will be prepared to present for the first time the overall performance data of the recently commissioned gasification plant. ITI Energy with Newcastle University have designed, fabricated, installed and commissioned a single stream 1.2 MW electric and 2 MW thermal output domestic waste (RDF) gasification plant close-coupled with a GE Jenbacher gas engine. This plant has been in operation since October, 2004. A significant part of the work has been related to testing a new gasifier design to handle high ash content RDF pelleted fuel and the conditioning of the gasifier producer gas for use in gas engines. For the fine filtration of the gas and produced water a reliable solution based on wet electrostatic precipitation and a novel clean up technology has been demonstrated. Furthermore, the complete gasification system has been fully automated for operating remotely. ITI small-scale single or large-scale modular gasification technology is now considered as State of the Art, highly competitive and an alternative to other existing technologies.

Publication metadata

Author(s): Dogru M, Calkan OF, Akay G, Fordham A, Lewis M

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: CHISA: 17th International Congress of Chemical and Process Engineering

Year of Conference: 2006

Pages: -

Publisher: Czech Society of Chemical Engineering

Library holdings: Search Newcastle University Library for this item

ISBN: 8086059456