26 July 2016 by Tom Goulding

Saxlund selected for Hertfordshire gasification plant

Development of a 96,000 tonnes-per-year capacity waste gasification plant in Hertfordshire is underway – with Saxlund International selected to construct fuel storage bunkers at the facility.

The £60 million plant, which will be based in Hoddesdon, is a joint venture between Bouygues Energies & Services and specialised investment fund AssetGen Partners.

Saxlund push floor technology at Slough Heat and Power, which will be installed at Hoddeston

Saxlund push floor technology at Slough Heat and Power, which will be installed at Hoddesdon

Construction of the facility has also been part-financed by the Green Investment Bank and its partner Foresight Group, which injected £30 million into the project in March 2015 shortly after it received planning permission (see letsrecycle.com story).

Capable of producing 10MW of power for the National Grid, the facility is the ‘largest’ proposed energy from waste plant in the UK to utilise the thermal treatment technology according to Bouygues, which will design, construct and operate the facility for a period of 10 years.

The facility is due to begin operations in early 2017 and will source feedstock from ‘local’ commercial and industrial waste businesses.

Saxlund, which is part of the Trention AB energy and environmental technology group, has been contracted to provide a ‘Push Floor’ fuel storage system for the facility, as well as discharge bunkers.

Bunkers

The company will install and commission two crane-fed fuel bunkers with shear walls constructed in steel, capable of handling the 96,000 tonnes of refuse-derived fuel (RDF) required for the plant each year. The bunkers will receive, store and discharge RDF to twin conveying streams feeding the gasifiers at the plant.

The ‘Push Floor’ technology will meanwhile limit the opportunity for RDF to degrade or compact, with a reciprocating action back and forth across the bunker floor continuously breaking up material.

Matt Drew, managing director of Saxlund International said: “We are delighted that Saxlund equipment has been selected for the fuel handling and storage system. Continuously developed over many years and in use at dozens of waste-to-energy sites across Europe, Saxlund push floor technology is ideal for handling RDF and we are completely focused on delivering a highly resilient, robust and reliable solution for Bouygues Energies & Services.”

Gasification

Despite recent concerns surrounding the viability of gasification technology, Bouygues Energies & Services is connected to a number of thermal treatment projects in the UK. These include a £107 million plant in Belfast’s Harbour Estate in Northern Ireland which has also secured GIB funding, and Drenl’s proposed gasification facility in Corby, Northamptonshire (see letsrecycle.com story).

Hoddesdon has become an area linked with EfW growth

Hoddesdon has become an area linked with EfW growth

Jean-Christophe Perraud, chief executive of Bouygues Energies & Services, added: “This contract once again confirms Bouygues Energies & Services capacity to deliver a large, complex industrial project in the energy infrastructure sector and I am delighted we have Saxlund International as our technology partners here.

“Furthermore, this project will work towards achieving energy independence in the United Kingdom via the production of a local source of energy.”

Hoddesdon

Located 22 miles north of London, Hoddesdon has become an area linked to significant EfW growth in recent months – with Veolia also choosing the area to site its 380,000 tonnes-per-year capacity mass-burn incinerator. Due to handle all municipal residual waste in the region, the plant was accepted in principle by Hertfordshire county council in March this year (see letsrecycle.com story).

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