Andritz, Metsä Fibre eliminate fossil fuel use in Joutseno lime kiln
Graz, Austria-based Andritz says it collaborated on a program to maximize reduction of the use of fossil fuels and improve the over-all performance of the lime kiln at the Metsä Fibre Joutseno mill in Finland.
The goal of the program, entitled Gasification Plant 100% Utilization Rate, was to maximize the availability of all equipment, including the wood processing plant, dryer, gasification plant, lime kiln, lime kiln burner and its heat transfer system.
As a result, Joutseno has replaced 95% of the natural gas used in the lime kiln with biomass (bark) derived gas. Moreover, the quality of lime product has markedly improved. The cooperation between the two companies will continue with Overall Production Efficiency (OPE) agreements to further fine tune the systems.
The Joutseno 48-MW gasification plant is based on the circulating fluidized bed (CFB) technology developed by Andritz. Other CFB references include: a 65-MW CFB gasification plant supplied to Zhanjiang Chenming Pulp & Paper mill in China, which replaces the heavy fuel oil it used earlier in the lime kiln; a repeat order from Chenming Group in 2015 with an 80-MW CFB gasification plant for its greenfield pulp mill, Shouguang Meilun in China.
Andritz Group, www.andritz.com