ISSN 2594-357X
50° Seminário de Redução de Minérios e Matérias-primas — vol. 50, num.50 (2022)
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PULVERIZED COAL INJECTION (PCI) IS A VERY EFFECTIVE WAY TO IMPROVE TOTAL FUEL COST OF THE BLAST FURNACE. HENCE, THE OPTIMIZATION OF PCI TECHNOLOGY HAS STILL A SIGNIFICANT IMPACT ON THE PROFITABILITY. IN THIS REGARD KüTTNER HAS DEVELOPED A NEW TECHNOLOGY CALLED KüTTNER REACTIVE PCI® AND KüTTNER REACTIVE OXYCOAL® WHICH WILL BE PRESENTED AND DISCUSSED WITHIN THIS CONTRIBUTION. THE IDEA BEHIND KüTTNER REACTIVE PCI/OXYCOAL® IS QUITE SIMPLE BUT VERY EFFECTIVE. A SMALL AMOUNT OF A REACTIVE GAS WILL BE ADDED TO THE TRANSPORT GAS OF PULVERIZED COAL CONVEYED AND INJECTED UNDER DENSE PHASE CONDITIONS. AFTER BEING INJECTED INTO THE TUYERE OF THE BLAST FURNACE THE REACTIVE GAS CAUSES AN ACCELERATION OF PC-GASIFICATION IMMEDIATELY. A POSSIBLE INCREASE OF PCI-RATE ASSOCIATED WITH A DECREASE OF COKE RATE ARE THE RESULTS OF THIS PROCESS WHICH GIVES THE BLAST FURNACE OPERATOR THE BOOST ON THE PROFITABILITY. HYDROGEN AND CARBON MONOXIDE ARE MOST EFFECTIVE REACTIVE GASES BUT PRACTICALLY COKE OVEN GAS, CONVERTER OFF GAS AND BLAST FURNACE GAS CAN BE USED. THE MAIN GOAL OF THE IMPLEMENTATION OF THE KüTTNER REACTIVE PCI/OXYCOAL® TECHNOLOGY IS PRIMARILY THE REDUCTION IN FUEL COSTS. AN INCREASE OF THE INJECTION RATE BY 10 % WHICH SEEMS TO BE VERY REALISTIC REDUCES COKE RATE DUE TO THE APPLICABLE COKE/COAL EXCHANGE FACTOR BY APPROX. 8 %. THE REDUCTION OF THE COKE RATE IS THE DRIVING FORCE FOR AN ECONOMIC BLAST FURNACE OPERATION. FURTHERMORE, THIS TECHNOLOGY OFFERS THE OPPORTUNITY OF GREEN HYDROGEN INJECTION WHICH OPENS THE DOOR TO THE GREEN STEEL PRODUCTION.
PULVERIZED COAL INJECTION (PCI) IS A VERY EFFECTIVE WAY TO IMPROVE TOTAL FUEL COST OF THE BLAST FURNACE. HENCE, THE OPTIMIZATION OF PCI TECHNOLOGY HAS STILL A SIGNIFICANT IMPACT ON THE PROFITABILITY. IN THIS REGARD KüTTNER HAS DEVELOPED A NEW TECHNOLOGY CALLED KüTTNER REACTIVE PCI® AND KüTTNER REACTIVE OXYCOAL® WHICH WILL BE PRESENTED AND DISCUSSED WITHIN THIS CONTRIBUTION. THE IDEA BEHIND KüTTNER REACTIVE PCI/OXYCOAL® IS QUITE SIMPLE BUT VERY EFFECTIVE. A SMALL AMOUNT OF A REACTIVE GAS WILL BE ADDED TO THE TRANSPORT GAS OF PULVERIZED COAL CONVEYED AND INJECTED UNDER DENSE PHASE CONDITIONS. AFTER BEING INJECTED INTO THE TUYERE OF THE BLAST FURNACE THE REACTIVE GAS CAUSES AN ACCELERATION OF PC-GASIFICATION IMMEDIATELY. A POSSIBLE INCREASE OF PCI-RATE ASSOCIATED WITH A DECREASE OF COKE RATE ARE THE RESULTS OF THIS PROCESS WHICH GIVES THE BLAST FURNACE OPERATOR THE BOOST ON THE PROFITABILITY. HYDROGEN AND CARBON MONOXIDE ARE MOST EFFECTIVE REACTIVE GASES BUT PRACTICALLY COKE OVEN GAS, CONVERTER OFF GAS AND BLAST FURNACE GAS CAN BE USED. THE MAIN GOAL OF THE IMPLEMENTATION OF THE KüTTNER REACTIVE PCI/OXYCOAL® TECHNOLOGY IS PRIMARILY THE REDUCTION IN FUEL COSTS. AN INCREASE OF THE INJECTION RATE BY 10 % WHICH SEEMS TO BE VERY REALISTIC REDUCES COKE RATE DUE TO THE APPLICABLE COKE/COAL EXCHANGE FACTOR BY APPROX. 8 %. THE REDUCTION OF THE COKE RATE IS THE DRIVING FORCE FOR AN ECONOMIC BLAST FURNACE OPERATION. FURTHERMORE, THIS TECHNOLOGY OFFERS THE OPPORTUNITY OF GREEN HYDROGEN INJECTION WHICH OPENS THE DOOR TO THE GREEN STEEL PRODUCTION.
Keywords
PCI; Reactive Oxycoal®; Hydrogen; Green Steel
PCI; Reactive Oxycoal®; Hydrogen; Green Steel
How to refer
Schott, Robin;
Reufer, Franz.
KÜTTNER REACTIVE PCI® - KÜTTNER REACTIVE OXYCOAL® PATENTED PROCESS TO INCREASE PCI RATE INTO THE BLAST FURNACE TO MINIMIZE TOTAL FUEL COSTS
,
p. 117-131.
In: 50° Seminário de Redução de Minérios e Matérias-primas,
São Paulo,
2022.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-34293
