Dejong grid-type duct burner

Grid duct burner type

Features and benefits

√  Modular design

The grid type burner is of modular design which can be adapted to each specific application.

√  Low maintenance cost

The grid type burner design, which is made up of heavy casted stainless steel flame stabilizers and high-grade stainless-steel construction, is very robust and assures a long lifetime of the burner without requiring any maintenance.

√  Low emissions, high stability

The special shape of the burner wings assures stable combustion over the total operating range resulting in low emissions of NOx, CO and UHC’s.

√  Fuel flexibility

Grid type duct burners operate on a broad range of fuels ranging from fuels containing hydrogen to fuels containing heavies or olefins.

√  Fresh air firing

Grid type duct burners can be used as a backup system to continue HRSG operation when the turbine is stopped. In that case, fresh air from combustion air fans is routed to the duct.

Technical specifications

√  Firing temperature up to 1100˚ C

√  Typical heat input 2.35Mw-4Mw/m

√  Short flame design (approx. 3.5m)

√  Low pressure drops (approx. 1-2mbar)

√  Good temperature distribution

√  Turndown ratio: 10:1

√  Suitable for kinds of fuel gas, NG, LPG, H2, Syngas, biogas

√  Works for O2 from 10%-16% in turbine exhaust gas

Grid duct burner system layout 

Installations