New method of sensible heat recovery from iron and steel slag

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Efficiency improvement of the hot blast generating

 · flue gas heat recovery scheme in the hot blast generating process resulted in a saving of fuel consumption by 822 l/h on an oil equivalent basis. The benefits of energy saving over 1.9 million US dollars and the CO2 reduction 15 000 tons can be achieved annually. Keywords waste heat recovery hot stove energy saving thermal efficiency.

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Potential Waste Heat Recovery Analysis From Molten Steel

 · Potential Waste Heat Recovery Analysis From Molten Steel Slag The Case Study of Sidenor Steelworks in Basauri (Spain) Heat recovery Slags Steel Iron and steel mill construction. A General Enthalpy Method for Modeling Solidification Processes "

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Dry Granulation of Molten Blast Furnace Slag and Heat

The most important advantage of dry granulation is the possible recovery of heat from slag by drying or preheating the materials as well as by using them to generate power.

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Patents Assigned to Fritz Enterprises Inc.Justia

 · Abstract A system and method directed to the economical recovery of valuable iron constituents from iron blast furnace and steel-making slag fines wherein the slag is obtained and subjected to a series of classification steps which progressively sort the slag fines by various physical characteristics including magnetism size and density into relatively iron-rich and relatively iron-poor

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Slag recyclingrecovery

The data for the EU28 are derived from the reports published by the 19 most important countries and data from the World Steel Association for pig iron production. The result for 2018 comes to 20.7 Mta of blast furnace slag and 16.3 Mta of steelworks slag or 37.0 Mta of total steel and iron works slag.

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Integration of coal gasification and waste heat recovery

 · Here we report a novel approach to extract the waste heat and iron from high temperature steel slags (1450–1650 o C) produced in the steel industry i.e. integration of coal gasification and

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Waste Heat RecoveryEnergy

 · RD D to advance waste heat recovery technologies. Technology needs are identified in two broad areas 1) extending the range of existing technologies to enhance their economic feasibility and recovery efficiency and 2) exploring new methods for waste heat recovery especially for unconventional waste heat sources. Acknowledgement

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UDC 669 . 054 . 82Nippon Steel Corporation

 · 2. General Condition of Iron/Steel Slag 2.1 How iron/steel slag is produced As a by-product of the manufacture of steel from iron ore iron/ steel slag originates from veinstone that is contained in the raw ma-terials (iron ore coal coke etc.) and the flux that is added in the steelmaking refining process for removal of impurities (Si P S

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Development of a control strategy for the open slag bath

 · The smelting of hot pre-reduced titaniferous iron ore to produce pig iron and vanadium-containing slag for the production of vanadium products was started in the 1960s by both Highveld Steel and Vanadium and New Zealand Steel (NZS). New Zealand Steel initially decided to use a mainly open bath foamy slag

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ANNEXURE 13Tata Steel

 · Recovery of sensible heat of Coke by installation of Coke Dry Quenching System in Battery # 10 11 at Coke Plant 243.91 and opportunity to present Tata Steel with supply of new grades material in newer models. This also helps in on a pilot scale at Noamundi iron ore processing plant to recover iron value from slimes.

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NEDO PROJECT COURSE 50 Development of High

 · Sensible heat recovery from slag (example) Waste heat recovery boiler . CO. 2. storage technology Kalina cycle . Power generation Slag Iron ore . pre-reduction . technology . Coke substitution . reducing agent production technology . CO2 capture . technology . Coke production technology . for BF hydrogen reduction for BF hydrogen reduction

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Development of Continuous Steelmaking Slag

heat recovery equipment such as CDQ (coke dry quenching) were constructed subsequently. In this study we propose combining a twin roll method for slag solidification and a packed bed method for heat exchange from slag to air in order to realize efficient recov-ery of the sensible heat of slag which has low thermal con-ductivity.

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LOK SABHA UNSTARRED QUESTION NO.3277 R D IN

 · in Iron Steel Sector" for the years and are given below - Sinter Plant Heat Recovery (Power generation from Sinter Cooler Waste Heat). Bell Less Top Equipment (BLT) in Blast Furnace. undertaken for effective utilization of steel slag in road making construction agriculture etc. Author

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Development of Heat Recovery System from Steelmaking

 · In the COURSE50 Project JFE Steel is in charge of develop- ing a technology for recovering the sensible heat of this steelmaking slag in the process of producing slag prod- ucts from steelmaking slag. The main challenge of this development is to recover sensible heat from the slag efficiently in spite of its low thermal conductivity.

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Development of Molten Slag Dry Granulation and Heat

The difficulties of molten metallurgical slag (including blast furnace slag and steel slag etc.) heat recovery caused by low thermal conductivity and high enthalpy are analyzed.The processes of molten slag dry granulation combined heat recovery by physical means such as slag continuous casting rotary drum granulation stirring granulation air blast granulation and Merotec process were expatiated.The technology of sensible heat recovery

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Study on mineralogical crystallization of granulation of

 · iron and steel industry to reduce high-energy emissions and utilize much more of the solid waste.4–6 Many studies on the treatment methods for BFS and waste heat recovery have been performed. Liu7 et al. studied a dry granulation method for rotary cups which not only recycles the sensible heat of BFS but also saves a large

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Thermophysical characterization of a by-product from the

The objective is to develop sustainable and low-cost thermal energy storage systems for industry waste heat recovery and in renewable energy applications. At the same time this new valuable market for slag in the energy field could solve a big part of the waste management problem in the iron and steel sector.

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Iron and SteelAnalysisIEA

Demand for steel which drives steel production is a key determinant of energy demand and steel subsector CO 2 emissions. Global crude steel production increased by 5 in 2018 to reach 1 817 Mt following 6 growth in 2017. Initial estimates suggest 3 growth in 2019. This follows a period of relatively flat demand from .

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Thermochemical Recuperation for High Temperature

 · The conventional method for improving the efficiency of steel reheat furnaces is to preheat the ambient combustion air by re-covering a fraction of the sensible heat in the flue gases leaving the furnace. This is typically accomplished by the use of metallic recuperators (air heat exchangers). Although recuperation has

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A review of waste heat recovery technologies towards

 · High-temperature waste heat from the iron and steel industry as shown in Fig. 1 are mainly stored in products molten slag and waste gas .Molten slag as a kind of by-product during the steelmaking process is exhausted in extremely high temperature and thus it carries a great deal of high-grade heat accounting for 10 of waste energy in steel industry and 35 of high-temperature waste heat ().

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Technologies to support COURSE50 COURSE50 The

Development of sensible heat recovery from steelmaking slag It is effective to recover and use unutilized high-temperature waste heat within a steel plant as the thermal energy required to regenerate CO 2-laden chemical absorbents by separating CO 2 from the absorbents. This project will develop a sensible heat recovery process from high-temperature steelmaking slag where molten steelmaking

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Efforts at JFE Steel

 · reduced unit energy consumption (crude steel base) and in line with the Japan Iron and Steel Federation s Voluntary Action Plan is working toward an energy-saving target of –4.4 /ton-crude steel by 2010 against a 1995 baseline. In 2002 consumption was down 3.3 from 2001. JFE is also actively committed to new

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Technical Info. EAF Steel Plantech

Hybrid way EAF off-gas heat recovery -ECORECS-It introduces the sensible heat of the exhaust gas discharged from the electric arc furnace for steel making and the boiler system maximum collects and introduces the collected waste energy because it developed the technology that applies to continuous power generation of the steam turbine regardless of intermittent operation in the steel furnace.

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Open Access proceedings Journal of Physics Conference

 · recovered through the EU industry are given and a special case study on the important Iron and Steel industry is presented. This kind of information can be useful for the improvement of existing and the development of "new" technologies or techniques. Keywords waste heat recovery WHR potential estimation WHR technologies iron and steel. 1.

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Shanshan Xie1 a Hui Li1 bAtlantis Press

Waste heat recovery technology of iron and steel enterprises Shanshan Xie1 a Hui Li1 b 1 Colleg ef M tau rg y nd Ene N h iU v s Of S c And Technology Tangshan Hebei 063009 China a7290 56 3 q blh nst.edu Key words I ron ad s t e lp ig yvw hea c ng

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Connections ASA Australasian (iron steel) Slag

Connections. Launched in 1998 Connections is an industry publication produced by the Association with the goal to disseminate current initiatives news and research of the iron and steel slag industry to members and interested readers. With a readership in excess of 2000 Connections is available to download for free by clicking on the cover

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Iron and Steel ReportGOV.UK

 · Iron and Steel Sector This report is a decarbonisation and energy efficiency roadmap for the iron and steel sector one of a series of eight reports that assess the potential for a low-carbon future across the most heat-intensive industrial sectors in the UK. It investigates how the industry could decarbonise and increase energy efficiency

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Development of Continuous Steelmaking Slag

The COURSE50 project aims at developing technologies to reduce CO 2 emissions from steel works by approximately 30 in Japan. In order to supply the energy required to separate CO 2 a technology for recovering sensible heat from steelmaking slag is being developed as one theme of COURSE50.A twin roll type continuous slag solidification process to obtain a shape suitable for sensible heat

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Analysis of Energy Balance for a Steel Electric Arc Furnace

 · - Sensible heat of the centering the ooling water cooling systemSensible heat of the airExothermal chemical reaction released heatHeat resulting from electrodes burnout The useful energy flows are identified as follows iThe heat required to heat up (sensible) melt (latent) and superheat (sensible) the steelThe sensible heat of

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NEDO PROJECT COURSE 50 Development of High

 · Sensible heat recovery from slag (example) Waste heat recovery boiler . CO. 2. storage technology Kalina cycle . Power generation Slag Iron ore . pre-reduction . technology . Coke substitution . reducing agent production technology . CO2 capture . technology . Coke production technology . for BF hydrogen reduction for BF hydrogen reduction

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Steel Slag Research PapersAcademia.edu

Slag is one of the main waste materials of the iron and steel manufacturing. Every year about 20 106 tons of slag are generated in the U.S. and 43.5 106 tons in Europe. The valorization of this by-product as heat storage material in

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(PDF) Heat Recovery from Slag through Dry Granulation

The method proposed by Australia s Commonwealth Scientific and Industrial Research Organization (CSIRO) to recovery heat from BF slag is composed by two successive processes the dry granulating

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--Recent Results on H Reduction including Capture--

 · Sensible heat recovery from slag (example) Waste heat recovery boiler CO 2 storage technology Kalina cycle Power generation Slag Iron ore pre-reduction technology Coke substitution reducing agent production technology CO2 capture technology Coke production technology for BF hydrogen reduction for BF hydrogen reduction Reaction control technology

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Development of Continuous Steelmaking Slag Solidification

In order to supply the energy required to separate CO 2 a technology for recovering sensible heat from steelmaking slag is being developed as one theme of COURSE50. A twin roll type continuous slag solidification process to obtain a shape suitable for sensible heat recovery was investigated.

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Energy recovery from high temperature slagsScienceDirect

 · Currently three types of technologies are under development for utilizing the thermal energy of slags recovery as hot air or steam conversion to chemical energy as fuel and thermoelectric power generation. The former route is most developed with its large scale trials demonstrating recovery efficiencies up to 65 .

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Rate of methane-steam reforming reaction on the surface

A new concept for heat recovery from molten slag has been proposed. It involves exchanging energy between sensible heat of slag and chemical energy of gas mixture through methane-steam reforming and its reverse reactions. The validity of this concept was fundamentally verified by obtaining kinetic data on the reforming reaction using molten

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