MATRIX PROJECTS

PERDUE HILL, ALABAMA DUAL PETROLEUM COKE DENSI-FEED™ SYSTEM

February 2, 2007

Matrix provided the system engineering and critical equipment packages with silo for a dual discharge petcoke delivery system at GP Cellulose in Perdue Hill, Alabama. This system was designed to accept petcoke from pneumatic railcars or trucks and feed two lime kiln burners from a common 180 ton silo. A dual discharge hopper bottom was specifically designed for two petcoke DENSI-FEEDERS, though initially, GP chose to implement the project in two phases and only installed one of the two feed systems. Matrix commissioned the second kiln feed line 2 years later.

A stepped convey line and 100hp blower was used on the rail unloading system for a record unloading time of 2 hours for 100tons at a distance of 200ft away.

A pneumatic conveying system with a variable rate blower delivers petcoke to the burner in accordance with the specific air flow requirements for flame shaping. Control of the Matrix system was integrated into the mill's existing DCS. The system is able to co-fire fire petcoke, fuel oil, natural gas or tall oil.

The first kiln’s system at was proven and tested to 3.0 tph with natural gas and successfully burned in excess of 2.4 tph of petcoke in combination with fuel oil. Below is a picture of the flame at 2.5 tph with fuel oil.