Upsilon Chemicals Bishnupur, Kolkata, West Bengal

Due to increased usage of low quality fuel oil with high sulphur, asphaltene and vanadium content, power stations all over the world face both environmental and technical problems. The incomplete combustion of the fuel oil as well as the vanadium and sulphur content cause deposits and corrosions in all parts of the boiler and excessive emissions of solids (particulates) and sulphur trioxide.

Cleaning a boiler during its outage is a hard physical work, requiring scaffolding to be built inside the boiler and personnel trained for such operation. Application of PentoMag 2550 eliminates most of works hazardous for the service and maintenance personnel. Antislagging additives have already been used for many years, initially in powder form. Practical experience was, however, not satisfactory, first of all because of relatively high particle size of powder components (typically 150 microns). The smaller the particle the greater the active surface. Pentol is the first manufacturer who developed production of fuel additives in form of stable slurry containing micronized active substances in oil suspension. Slurry is also resistant to water (powder will agglomerate in contact with moisture and its efficiency will be strongly limited). Also storage of additives in slurry form is easier and dosing more precise.