A LEAP forward: The HZI Low Excess Air Process
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Hitachi Zosen A LEAP forward: The HZI Low Excess Air Process Highly efficient combustion with low O2 and low NOx

LEAP: Maximized efficiency, minimized running costs, lower capital investment A LEAP forward: the HZI Low Excess Air Process LEAP: Maximized efficiency, minimized operating costs and a significant reduction of plant size – Hitachi Zosen Inova’s new process with low excess air kills three birds with one stone by optimizing the heart of your plant: the combustion process (patent pending). Using less air to combust the waste and at the same time reducing your plant’s corrosion potential sounds like a fair swindle? It isn’t. Our new process reduces the combustion air flow rate by 15–20 %,...

| The advantages of this design: • Staged combustion reduces local maximum temperatures • RFG mixes the primary combustion gas from the grate and causes gradual oxidation • The SA/RFG mixture in the 2nd stage avoids high local temperatures due to a lower O2 content than air alone • The staged combustion, the use of RFG and the lower O2 content all lead to a reduction of uncontrolled NOx formation • Higher degree of control possibilities: RFG in 1st stage to influence fire start by controlling radiation intensity, SA/RFG mixture in 2nd stage to maintain constant injection momentum over a...

ITAD M ■ ■ A • ■ ■ ■ A + i 11 ♦ ♦ Hitachi Zosen LEAP: Maximized efficiency, minimized running costs, lower capital investment ^ ^ OVA Hitachi Zosen Inova AG | Hardturmstr. 127 | P.O. Box 680 | 8037 Zurich | Switzerland