coke consumption in blast furnace

Process Analysis for Blast Furnaces by the Discrete Blast Furnace Feed The Beast Wiki FANDOM powered by Wikia

Process Analysis for Blast Furnaces by the Discrete Element Method of fluids gas and liquid flows were ignored in both simulations In the hearth model we assumed that coke is consumed in the peripheral area directly below the tuyeres via direct reduction by the FeO in the slag and carbon dissolution16 17 thereby resulting in a gradual decrease in the particle size of the coke in the The Blast Furnace accepts only two types of fuel Charcoal or Coal Coke It will take 2 minutes and 8 seconds and will consume two pieces of Coal Coke or four pieces of Charcoal to convert one Iron Ingot into a Steel Ingot The same amount applies to aluminum

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Blast furnace Wiki EveripediaThe energy consumption and carbon emission of the

Blast furnaces used in the ISP have a more intense operation than standard lead blast furnaces with higher air blast rates per m 2 of hearth area and a higher coke consumption Zinc production with the ISP is more expensive than with electrolytic zinc plants so several smelters operating this technology have closed in recent yearsThe energy consumption and carbon emission of the integrated steel mill with oxygen blast furnace are investigated by the material and energy flows Abstract As an energy intensive industry China s iron and steel industry is faced with the challenges of energy saving and carbon emission reduction

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Substitution of Coke and Energy Saving in Blast Furnaces Blast Furnace System Industrial Efficiency Technology

blast furnace processes and determination of the effect of the blast and charge parameters and the consumption of natural gas NG coke oven gas CG and pulverized However based on information obtained from six efficienct hot blast stoves and blast stoves around the world the average total primary energy requirement for a blast furnace system is reported to be 18 GJ/t hot metal for the hot blast stoves and 116 GJ/t hot metal for the blast furnace itself

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factfish Coke oven gas consumption by blast furnaces Hot Blast Superheating A Scalable Technology to Reduce

Overview Overview The series Coke oven gas contains 8 706 data rows in 13 data sets for 41 countri Definition Definition By product of the carbonization process in the production of coke in coke With the torches operating the blast furnace production increased coke consumption was reduced and operational flexibility improved By eight 2 MW torches were installed to enhance the blast furnace operation Torch reliability and maintainability proved difficult and as a result the technology was not adopted on other commercial scale blast furnac Since the mid s

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Coke fuel WikipediaCoke Oven an overview ScienceDirect Topics

Coke is a fuel with a high carbon content and few impurities made by heating coal in the absence of air It is the solid carbonaceous material derived from destructive distillation of low 04 02 32 CDQ also improves the quality of coke and enables reduced coke consumption in the blast furnace As the product quality is improved CDQ may also allow for the use of lower cost noncoking coal in the process thereby reducing costs 24

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Impact of PCI Coal Quality on Blast Furnace OperationsActivated coke reduces energy consumption in the blast

Impact of PCI Coal Quality on Blast Furnace Operations P Bennett T Fukushima CoalTech Pty Ltd F TeCon Pty Ltd Contact pbennett coaltechau ABSTRACT Pulverized coal injection has assisted the steel industry to lower operating costs extend coke oven life and lower greenhouse emissions As the understanding of the impact of quality of the injected coal has increased there has Activated coke reduces energy consumption in the blast furnace An extensive study by Swerea shows how coke properties change in various zones of the blast furnace

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Blast Furnace Energy Consumption HeatTreatConsortiumBLAST FURNACE ametek land

Of the total coke consumption for each of these years greater than 99 was by blast furnac Four other sources of energy play significant role in blast furnace operation namely natural gas blast furnace gas fuel oil and coke oven gas Through the next decade at least the energy consumption profile will continue to change significantlycoke A blast furnace fed with air preheated to between 900 oC oF smelting temperatures of about oC oF which significantly reduces the consumption of coke per ton of iron produced A typical hot blast stove consists of a vertical steel cylinder lined with firebrick with the interior divided into two chambers The combustion chamber burns gases from the blast

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Normative Estimation of Parameters of the Blast Furnace Results of Ultra High Rates of Natural Gas Injection Into

of blast furnace smelting on coke consumption and productivity has been substantially supplemented and refined based on the results of the analytical and experimental studies performed as well as the generalization of the experience of blast furnacSupplemental fuels are injected at the tuyere level of blast furnaces to reduce coke consumption and increase productivity These fuels include natural gas coke oven gas oil tar and coal The economic benefits derived from supplemental fuel injection are of two types 1 the reduction in costs of hot metal production arising primarily from decreased coke consumption and 2 the value of

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Blast Furnace and Stoves EurothermCOKE PRODUCTION FOR BLAST FURNACE IRONMAKING

After leaving the stoves the hot blast enters the base of the blast furnace via the tuyer It passes up through the furnace reacting with the coke ores and fluxes and emerges as top gas containing mainly CO and CO2 The upwards pressure from the gases supports the burden so that there is a pressure drop of 14 bar across the burden irrespective of the top gas pressure With this COKE PRODUCTION FOR BLAST FURNACE IRONMAKING By Hardarshan S Valia Scientist Ispat Inland Inc INTRODUCTION A world class blast furnace operation demands the highest quality of raw materials operation and operators Coke is the most important raw material fed into the blast furnace in terms of its effect on blast furnace operation and hot metal quality A high quality coke should be able

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Alternate fuels in blast furnaces to reduce coke consumptionBlast Furnace Coke Gas and Converter Gas for Power

Blastfurnace continues to be principal producer of iron even today due to its size techno economics energy utilisation and quality of hot metal when compared to other emerging technologies of Blast furnace gas is a by product of blast furnaces where iron ore is reduced with coke into metallic pig iron The gas has a very low heating value of around 09kWh/Nm 3 which on its own is typically not high enough for combustion in a gas engine

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Optimizing Blast Furnace Operation to Increase Efficiency The use of combined blast is the main way to improve the

Optimizing Blast Furnace Operation to Increase Efficiency and Lower Costs State of the Art Computational Fluid Dynamics Model Optimizes Fuel Rate in Blast Furnac The blast furnace BF is the most widely used ironmaking process in the US A major advance in BF ironmaking has been the use of pulverized coal which partially replaces metallurgi cal coke This results in substantial especially in the form of a combined blast are typically used to reduce coke consumption in a blast furnace The major types of combined blast and supplemental fuels are as follows oxygen enrichment natural gas oil and pulverized coal injection The replacement coefficients of coke by these supplement fuels depend on the fuel quality the arrangement of the injection process and

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Report on Annual Worldwide Carbon Dioxide Emissions from The Principle of Blast Furnace Operational Technology and

blast furnace iron smelting and associated coke making = 20 0 billion tonnes of CO2 emitted The Global Carbon Budget estimate for worldwide CO 2 emissions from all fossil fuel burning activities is 363 billion tonnes of CO 2 emitted 1 Le Quere et al TECHNOLOGY REVIEW NO 26 DEC 12 The Principle of Blast Furnace Operational Technology and Centralized Gas Flow by Center Coke Charging

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Blast furnace RevolvyUSA Use of prereduced ore in a blast furnace

Blast furnaces used in the ISP have a more intense operation than standard lead blast furnaces with higher air blast rates per m 2 of hearth area and a higher coke consumption 58 Zinc production with the ISP is more expensive than with electrolytic zinc plants so several smelters operating this technology have closed in recent years 59 A need exists for an improved blast furnace operation which will both significantly increase the production of pig iron and decrease the coke consumption while simultaneously maximizing overall economy and efficiency in the production of the prereduced iron ore used as part of the charge to the blast furnace

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