Fuel Flexibility at Amager Unit 1
using Pulverized Fuels

Presented by Erik Gjernes, BWE, at Power-Gen Europe
May 30 - June 1 2006, Cologne, Germany

Abstract

Biomass for heat and power production has traditionally been used in grate fired- and fluidized bed boilers. By the introduction of biomass pellets and milling plant, utilisation of large volumes of biomass can also be made with burners in direct-fired utility boilers.

A new 500 t/h Benson boiler supplied by BWE will be part of a major upgrade of the Energy E2 owned Amager unit 1 in Copenhagen. The fuel includes coal, oil, straw- and wood-pellets and the combustion system enables both single fuel as well as co-firing. The yearly biomass consumption is planned to be 40,000 tons of wood pellets and 110,000 tons of straw pellets. This is 37% of the fuel input (energy) and will substitute about 95,000 tons of coal. The yearly potential for CO2 reduction is of the order of 220,000 tons.

The use of biomass has impact on firing capacity, fireside slagging and corrosion and the chosen measures are discussed as well as the BWE approach for co-firing with one fuel per mill.

Related news:

• 2006-10-10: Start of erection at Amager unit 1.
• 2006-07-31: Heat exchangers for Amager unit 1.
• 2006-06-08: HP piping for Amager unit 1.
• 2004-12-22: Boiler upgrade at Amager unit 1.