TAPPI TIP 0416-21 PDF

Guideline specification for procurement of an economizer for a recovery boiler

TAPPI TIP 0416-21 – Guideline specification for procurement of an economizer for a recovery boiler

The economizer installed on a Kraft recovery boiler is the component responsible for the greatest number of tubeleaks that result in lost production for the pulp and paper industry. This technical information paper provides theengineer with a guideline specification and supporting information for economizer procurement. The TIP is basedon reports from a comprehensive study initiated by the AF&PA Recovery Boiler Committee (1). The study waspresented at a TAPPI Conference in 2006 (2). The guideline specification addresses design, materials ofconstruction, manufacturing and shipping recommendations for vertical tube economizers. It is formatted as aprocurement specification that can be used as a basis for discussion with suppliers and obtaining quotations. Theguidelines are not intended to be applied for a horizontal tube economizer, although there is some information thathas merit when applied to a horizontal tube design.