Abstract

Pinit Jirukkakul¹ and Weerachai Arjharn²

DOI : http://dx.doi.org/10.13005/ojc/330630

The elementary ash in eucalyptus bark affects the corrosion and efficiency of pipes in the boiler tube applying in food industries. The eucalyptus bark had high chloride content at 0.660-1.975%, which reacted with compound gaseous to form potassium chloride. The most oxide value (62.66%) of fresh eucalyptus bark was from calcium oxide, which promoted agglomeration. Reduction of agglomeration may be done by addition of kaolin. Therefore, kaolin was added into eucalyptus bark pellet for 5, 10, and 12% before using as fuel to produce steam compared with control (pellet without kaolin). The results showed that the tendency for fouling and agglomeration was decreased when 10 and 12% kaolin was added. At 10% kaolin addition, the slagging ash was lowest and the agglomeration was reduced for 77.4%. The eucalyptus bark pellet with 10% kaolin was the most effective fuel for water tube boiler.

Eucalyptus bark pellet; boiler; fouling; slagging; agglomeration

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