The Chemical Systems Division offers solutions for pulp mill on-site chemical preparation. The main process areas served by the Division are recausticizing, lime reburning, and white liquor production.
The Division is headquartered in Kotka, Finland and also has operations in Brazil, Indonesia, Japan, Sweden, and the USA.
The Division’s business activities progressed very favorably during 2004. Major business activities were in the Southern hemisphere, although modernizations of equipment have stimulated business in market areas worldwide.
The recausticizing plant and lime kiln for Arauco’s Valdiva mill in Chile were successfully started up in March. In April, the chemical recovery island at UPM-Kymmene’s Pietarsaari mill in Finland went online. Included in this project was the world’s largest white liquor plant (10,000 m3/d) supplied by the Division.
At the end of July, the 8,000 m3/d white liquor plant for Zellstoff Stendal in Germany was successfully started up. This greenfield project includes two CPR-Filter™ systems for lime mud filtration.
In the Fourth Quarter, new X-Filter™ systems for green liquor filtration were started up at Södra’s Mörrum mill in Sweden.
- The Division received its largest order ever as part of the multi-Division order from CMPC Celulosa S.A. in Chile. For the Santa Fe mill, the Division will supply a complete EPC white liquor plant (including lime kiln).
- The Division received an order from Complejo Forestal Industrial Itata to deliver a complete white liquor plant, including recausticizing and lime reburning.
- The Division was chosen to modernize a lime kiln for Billerud Skärblacka, Sweden.
- In India, the Division will provide a CD-Filter™ for white liquor, an LMD-Filter™ for lime mud, and a lime kiln burner as part of the capacity expansion for Andhra Pradesh Paper Mills’ Rajahmundry facility.
- In Canada, Irving Pulp & Paper ordered a complete lime kiln system. This is the first LMD lime kiln system to be installed in Canada.
The Chemical Systems Division successfully launched new technology for lime mud dewatering - the LMD-Filter™. The filter is a compact design based upon disc filter technology, which reduces emissions from the lime kiln, and is a completely closed system so there is no dusting. A large LMD-Filter™ was installed at UPM-Kymmene’s Pietarsaari mill in Finland and has been operating with excellent results.
The trend today is toward large "single line” mills, since redundant or repetitive smaller systems increase capital and operating costs. The Division has led this development and has active programs to produce larger scale equipment. New, higher capacity X-Filter™ systems, CD-Filter™ sizes, slakers, and lime kilns are now commercially available. An example from the Pietarsaari installation is the single, large LMD-Filter™ (to support 10,000 m3/d white liquor production) which does the work of two large drum filters.
A new lime kiln burner is being developed to meet the demanding environmental requirements of modern mills. New equipment for dregs handling (green liquor dregs) is in the final phase of developmental testing before introduction to the market.
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