Method for combustion of a low-grade fuel

Method for combustion of a low-grade fuel

Method for combustion of a fuel using at least one industrial burner (115), which burner (115) is fed with a low-grade, gaseous fuel with a Lower Heating Value (LHV) of 8 MJ/Nm 3 or less and an oxidant. The invention is characterised in that the combustion products from the combustion of the fuel wi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: EKMAN, TOMAS
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
CONSUMING WASTE PRODUCTS BY COMBUSTION
CREMATION FURNACES
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Beschreibung
Zusammenfassung:Method for combustion of a fuel using at least one industrial burner (115), which burner (115) is fed with a low-grade, gaseous fuel with a Lower Heating Value (LHV) of 8 MJ/Nm 3 or less and an oxidant. The invention is characterised in that the combustion products from the combustion of the fuel with the oxidant are brought firstly through a first heat exchanging step (150;201), in which thermal energy is transferred from the combustion products to the fuel which is thereby preheated, and in that the thus cooled combustion products thereafter are brought through a second heat exchanging step (151;203), in which thermal energy is transferred from the cooled combustion products to the oxidant which is thereby also preheated. The invention also relates to a system for preheating fuel and oxidant.