About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ... 1 Jan 1998 ... The reactions of the blast furnace involve 1) combustion of the fuel and its conversion into carbon monoxide, 2) reduction of the ore, and 3) ...Molten iron is produced in a blast furnace by the following steps: 1. Charge (solid iron ore, coke, and limestone) is constantly dumped into the top of the furnace. 2. A blast of hot air is blown into the furnace from the bottom. 3. Coke is the fuel that supplies additional heat, increasing the temperature of the charge. 4. geauga county fair attendance The blast furnace is the first step in producing steel from iron oxides. The first blast furnaces appeared in the 14th century and produced one ton per day. ... During the steelmaking process by basic oxygen furnace, unwanted carbon combines with oxygen to form carbon oxides, which leave as gases. Oxygen is fed into the steel bath through a ...The slag floats on top of the molten iron and can be drawn off separately. The pig iron is treated in a second step called the basic oxygen furnace. Pure oxygen ...Heat is transferred to the scrap by flame radiation and convection by the hot products of combustion. Heat is transferred within the scrap by conduction. Large pieces of scrap take longer to melt into the bath than smaller pieces. In some operations, oxygen is injected via a consumable pipe lance to “cut” the scrap. tiki culture racist jayco swift van 1. A machine dumps limestone and scrap steel (the charge) into the furnace. 2. After the charge melts, molten or cold iron is added. 3. Heating continues. Carbon from the iron becomes carbon monoxide gas. Impurities are separated and form slag. 4.Iron is extracted from different ores exist in the world. Hematite (Fe2O3) is reduced to Fe in the blast furnace under several steps. coleman 47204a879Steps of Extraction Step1: Concentration Step2: Calcination Step3: Smelting The concentrated ore is mixed with calculated quantity of coke, limestone and the mixture is put in the Blast Furnace from top. 10. Blast …Abstract. The objective of the blast furnace (BF) is to produce hot metal. The blast furnace is a tall, vertical shaft furnace which uses coke to reduce iron ores. what is dell bios guard Illustration about the chemistry of blast furnaces processes. Metallurgy of iron and steel. Vector illustration. Illustration of blastfurnace, cast, ...Blast furnace ironmaking is the process of smelting iron ore (including natural ore and artificial enrichment) into pig iron. Blast furnace ironmaking plant is ...Iron ore, limestone and coke is the ‘’stock’ of the blast furnace. This is fed into the furnace at its top. A variety of processes take place within the blast furnace, as the ‘stock’ slowly moves downwards and temperatures increase. The removal of oxygen through the chemical process called ‘reduction’ is crucial (oxygen combines ... Currently, Paul Wurth is extending its offering of technologies designed to gradually reduce CO2 emissions in the classic blast furnace process, ... 1965 rambler classic for sale Process Description R&D Trends . Blast furnaces are usually tall shaft-type steel vessels, up to ten stories high, internally lined with refractory brick, and superimposed over a crucible-like hearth. The necessary charge to produce molten pig iron consists of iron-bearing materials, coke, and flux. The charge is introduced into the furnace at ... Optimize furniture manufacturing process Each phase of the process has been optimized and streamlined: digitalization, connectivity, and virtualization in design, prototyping and costing, and automated industrialization (cutting and …21 Jun 2018 ... The iron in the processed ores must be dissolved out by chemical processes. This requires an element that binds oxygen more strongly than iron.20 août 2019 ... Slags are high value byproducts of metallurgical processes, ... In modern steel making, slags originate in a blast furnace from impurities ... summer jobs for autistic students Mar 03, 2020 · Pre-heated blast enters the tuyeres through the refractory lined bustle pipe, which is like a horizontal circular ring around the furnace. Iron notch is the tap hole for hot metal. It is kept sealed by refractory clay. For tapping, the clay seal is opened by a mechanical device. The blast furnace process automation, measurement, and control system is a high accuracy process control with prompt online graphical information. It provides a stable, reproducible operation of the blast furnace with constant hot metal quality. It ensures shift independent plant operation where manual interactions are reduced to a minimum.Process Description R&D Trends . Blast furnaces are usually tall shaft-type steel vessels, up to ten stories high, internally lined with refractory brick, and superimposed over a crucible-like hearth. The necessary charge to produce molten pig iron consists of iron-bearing materials, coke, and flux. The charge is introduced into the furnace at ... kuta software infinite algebra 2 simplifying rational exponents answers Process Description R&D Trends . Blast furnaces are usually tall shaft-type steel vessels, up to ten stories high, internally lined with refractory brick, and superimposed over a crucible-like hearth. The necessary charge to produce molten pig iron consists of iron-bearing materials, coke, and flux. The charge is introduced into the furnace at ... boat trader london A blast furnace is a reactor which produces an impure form of molten iron, termed ‘hot metal’, from ferrous bearing ores. The principal raw materials used in the blast furnace operation consist of. 1. Metallurgical coke, ferrous bearing feeds and fluxes charged via the furnace top. 2.The blast furnace is the first step in producing steel from iron oxides. The first blast furnaces appeared in the 14th century and produced one ton per day. Even though equipment is improved and higher production rates can be achieved, the processes inside the blast furnace remain the same. ... During the steelmaking process by basic oxygen furnace, unwanted carbon combines …The slag floats on top of the molten iron and can be drawn off separately. The pig iron is treated in a second step called the basic oxygen furnace. Pure oxygen ... broward county red light camera locations Iron ore, limestone and coke is the ‘’stock’ of the blast furnace. This is fed into the furnace at its top. A variety of processes take place within the blast furnace, as the ‘stock’ slowly moves downwards and temperatures increase. The removal of oxygen through the chemical process called ‘reduction’ is crucial (oxygen combines ... blast stoves" which are used to preheat the air entering the blast furnace to become "hot blast". Any of the gas not burned in the stoves is sent to the boiler house and is used to generate steam which turns a turbo blower that generates the compressed air known as "cold blast" that comes to the stoves. In summary, the blast furnace is a ...Steps of Extraction Step1: Concentration Step2: Calcination Step3: Smelting The concentrated ore is mixed with calculated quantity of coke, limestone and the mixture is put in the Blast Furnace from top. 10. Blast Furnace It is a tall cylindrical furnace made of steel. It is lined inside with fire bricks. It is narrow at the top and has an ...In blast furnace the process is also known as ... Blast Furnace Process Flow: ... series of steps before transporting it to the BFG Holder.Step 2 – More coke is added to the furnace and reduces the carbon dioxide into carbon monoxide, a good reducing agent. CO 2 (g) ... The blast furnace is a continuous process (ie reactants are ... May 27, 2020 · First, the weakly ferrous hematite ( Fe2O3Fe2O3) is reduced by the carbon monoxide ( COCO) to more ferrous magnetite ( Fe3O4Fe3O4 ). Then the magnetite is reduced to so-called wüstite ( FeOFeO) before it is finally reduced to iron ( FeFe ): Only the last chemical reaction of wüstite to iron is exothermic and supplies heat. The stack is kept full with alternating layers of coke, ore, and limestone admitted at the top during continuous operation. Coke is ignited at the bottom and ... avison young employees The Process Of Iron Ore Iron. Extracting Iron From Iron Ore • Ekomuseum Bergslagen. The process of manufacturing iron advanced with the extraction of iron from the ore First the ore was crushed into small pieces which were then roasted to concentrate the iron content Thereafter the roasted ore went into the blast furnace for smelting.It is used in process plants. The slag of the blast furnace has hydraulic properties which are used in cement as a additives; Slag also helps in soil stabilization. Advantages of Blast Furnace: The blast furnaces help to save fuel from 82 to …You can find the Blast Furnace in the city of Keldagrim, the city of the dwarves, and is a furnace used for smelting ores. Typically, smelting ores into bars is a resource-intensive process, and one of the benefits of using the blast furnace is that it only requires half as much coal while smelting the bars for everything. craftopia fishery Sep 13, 2022 · The blast furnace is filled by a dog (also known as a hunt). This feeds a mixture of iron ore and lime into the blast furnace. The iron ore is then turned into the desired pig iron thanks to the heat. This is done via a reduction. Carbon monoxide, which is produced by burning coke, acts as a reducing agent. 24 juil. 2020 ... I will be explaining this process step by step so it will be clear to you. ... Note: The body of the blast furnace is covered with ...See Answer. Blast furnaces extract pure iron from the iron (III) oxide in iron ore in a two step sequence. In the first step, carbon and oxygen react to form carbon monoxide: 2C (s) + O2 (g) → 2CO (g) In the second step, iron (III) oxide and carbon monoxide react to form iron and carbon dioxide: Fe2O3 (s) + 3CO (g) → 2Fe (s) + 3CO2 (g ... medify vs medentry vs icanmed The limestone descends in the blast furnace and remains a solid while going through it s first reaction as follows: CaCO3 = CaO + CO2 This reaction requires energy and starts at about 875°C. The CaO formed from this reaction is used to remove sulphur from the iron which is necessary before the hot metal becomes steel.In the second stage of the steelmaking process, known as basic oxygen steelmaking (BOS), the carbon content of pig iron is reduced from a typical 4–5% to 0.1–1% in an oxygen-fired … jeep wrangler jl alarm system Hot blast is blown into the blast furnace via tuyeres. A tuyere is a cooled copper conical pipe numbering up to 12 for smaller furnaces, and up to 42 for bigger furnaces through which pre-heated air (up to more than 1200 ℃) is blown into the furnace. Fig. 2.4 Horizontal cross-sectional view of tuyere zone Full size imageKeywords – blast furnace process. Article. Anne-Françoise Garçon. « Procédé direct/procédé indirect » en métallurgie du fer : archéologie d'une notion, ...The cleaned hot gas is then used in other operations of the plant, e.g. to pre-heat the blast air, while the collected dust is sent to the sintering plant for recycling back into the blast furnace. …The Basic Oxygen Steelmaking process differs from the EAF is that BOF is self-sufficient in energy. The primary raw materials for the BOP are 70-80% liquid hot metal from the blast furnace and the steel scrap need to be balanced. These are charged into the Basic Oxygen Furnace (BOF) vessel. Oxygen (>99.5% pure) is “blown” into the BOF at ... artemis air rifle magazine Blast furnace ironmaking is the process of smelting iron ore (including natural ore and artificial enrichment) into pig iron. Blast furnace ironmaking plant is ...First, the weakly ferrous hematite ( Fe2O3Fe2O3) is reduced by the carbon monoxide ( COCO) to more ferrous magnetite ( Fe3O4Fe3O4 ). Then the magnetite is reduced to so-called wüstite ( FeOFeO) before it is finally reduced to iron ( FeFe ): Only the last chemical reaction of wüstite to iron is exothermic and supplies heat.The stack is kept full with alternating layers of coke, ore, and limestone admitted at the top during continuous operation. Coke is ignited at the bottom and ... when will they vote on the social security expansion act Key words: Blast furnace, fmea, risk assessment, blast furnace gas, network pipeline. 1. INTRODUCTION Blast furnace gas is the byproduct of casting steel production process in the steel industry and usually is composed of 22-25% CO, 16-20% CO 2, 4-5% H 2 and 51-55% of N 2 by volume. Because of CO and H 2 are combustible, blast furnace gas is ...Heat is transferred to the scrap by flame radiation and convection by the hot products of combustion. Heat is transferred within the scrap by conduction. Large pieces of scrap take longer to melt into the bath than smaller pieces. In some operations, oxygen is injected via a consumable pipe lance to “cut” the scrap. weather presenters itv Molten iron · 1. Charge (solid iron ore, coke, and limestone) is constantly dumped into the top of the furnace. · 2. A blast of hot air is blown into the furnace ...The method. Three substances are needed to enable to extraction of iron from its ore. The combined mixture is called the charge:. Iron ore, haematite - often contains sand with iron oxide, Fe 2 O 3.. Limestone (calcium carbonate).. Coke …To generate the necessary heat and the reducing carbon monoxide gas (C O CO), the coke is burnt in the lower part of the blast furnace with the supply of the hot-blast. The …Coal. Lime stone. The first step in the steel manufacture begins at the blast furnace. To separate iron from iron ore coke (substance when gas is taken out of coal), limestone and dolomite are charged into the blast furnace. Temperature raised to 1600 o F. This high temp causes the coke to burn and melt the iron. heat presser 24 Şub 2021 ... 3rd Step: Once the materials are in the dry mix, you have to start the process immediately. There are only 15 minutes in hand to complete ...The blast is then put on, and the converter is rotated into a vertical position. Immediately the flame drops, the vessel is turned down again and the blown metal is poured into a casting ladle. At this stage, the finishing additions are usually made. Hence, the process, whether acid or basic, consists of the following three stages:29 Apr 2015 ... After drying, a very heavy coke blank is charged, followed by a regular blow-in burden. A low blast is then maintained, and hearth and in wall ...An electric arc furnace is a steel cylinder lined with refractory and it has three electrodes (carbon rods) which are inserted through the furnace roof. The charge is mostly scrap steel and alloy materials. Steel is produced in an electric arc furnace by the following steps:. 1. The charge is put into the furnace. 2. A powerful electric current arcs (jumps) between the electrodes, producing ... california breach of contract elements Key words: Blast furnace, fmea, risk assessment, blast furnace gas, network pipeline. 1. INTRODUCTION Blast furnace gas is the byproduct of casting steel production process in the steel industry and usually is composed of 22-25% CO, 16-20% CO 2, 4-5% H 2 and 51-55% of N 2 by volume. Because of CO and H 2 are combustible, blast furnace gas is ...Step 2. Define the scope of work Next, define what activities are included in the process or task delivery and which ones are not. Many processes will have elements overlapping with other activities. Completing this step will ensure that you do not include unnecessary steps in your documentation. Step 3. Explain the inputs and outputs aamc budget worksheet Step 2 - More coke is added to the furnace and reduces the carbon dioxide into carbon monoxide, a good reducing agent. CO 2 (g) ... The blast furnace is a continuous process (ie reactants are ...Key steps of the process are as follows: upper part of the furnace - free moisture is driven off from the burden materials and hydrates and carbonates are disassociated. lower part of the blast furnace shaft - indirect reduction of the iron oxides by carbon monoxide and hydrogen occurs at 700-1,000°C.The top blown basic oxygen furnace is equipped with the water cooled oxygen for blowing oxygen into the melt through 4-6 nozzles. Oxygen flow commonly reaches 200-280 ft3/ (min*t) (6-8 m3/ (min*t)). The oxygen pressure is 150-220 … tires discounts near me Key words: Blast furnace, fmea, risk assessment, blast furnace gas, network pipeline. 1. INTRODUCTION Blast furnace gas is the byproduct of casting steel production process in the steel industry and usually is composed of 22-25% CO, 16-20% CO 2, 4-5% H 2 and 51-55% of N 2 by volume. Because of CO and H 2 are combustible, blast furnace gas is ...8 Oct 2017 ... Blast Furnace Process · upper part of the furnace - free moisture is driven off from the burden materials and hydrates and carbonates are ...Sep 25, 2021 · The blast furnace process automation, measurement, and control system is a high accuracy process control with prompt online graphical information. It provides a stable, reproducible operation of the blast furnace with constant hot metal quality. It ensures shift independent plant operation where manual interactions are reduced to a minimum. holt mcdougal math textbooks12 Jul 2019 ... The iron ore begins to soften and melt in the cohesive zone and at the lower end iron melts and disperses through the solid coke layers. Below ...The samples were then cured for 14 days at 60 °C, followed by using double-step sintering at temperatures of 500 °C and 900 °C with varying heating rates and holding durations. The compressive strength and shrinkage of the kaolin-GGBS geopolymer were evaluated, and the morphology was examined using a scanning electron microscope. covid booster wales booking Sep 25, 2021 · The blast furnace process automation, measurement, and control system is a high accuracy process control with prompt online graphical information. It provides a stable, reproducible operation of the blast furnace with constant hot metal quality. It ensures shift independent plant operation where manual interactions are reduced to a minimum. The most common process is the use of a blast furnace to produce pig iron which is about 92-94% iron and 3-5% carbon with smaller amounts of other elements. Pig iron has only limited uses, and most of this iron goes on to a steel mill where it is converted into various steel alloys by further reducing the carbon content and adding other ... modern wall stencils The limestone descends in the blast furnace and remains a solid while going through it s first reaction as follows: CaCO3 = CaO + CO2 This reaction requires energy and starts at about 875°C. The CaO formed from this reaction is used to remove sulphur from the iron which is necessary before the hot metal becomes steel. 1. important pretreatment steps to remove sulfur from blast furnace iron; 2. refining reactions to reduce C, Si, Mn, P, and Ti to specified steel levels; 3. the oxygen steelmaking process and the basic oxygen furnace; 4. deoxidation of liquid steel with aluminum and silicon metal; 5.Steps of Extraction Step1: Concentration Step2: Calcination Step3: Smelting The concentrated ore is mixed with calculated quantity of coke, limestone and the mixture is put in the Blast Furnace from top. 10. Blast Furnace It is a tall cylindrical furnace made of steel. It is lined inside with fire bricks. It is narrow at the top and has an ...The crafting components for a blast furnace are all available in the depths of Minecraft's Overworlds. 1 Furnace. 5 Iron Ingots. 3 Smooth Stone Blocks. In a Nutshell: Place a furnace in the middle ... grand luxxe nuevo vallarta all inclusive High pellets ratio operation forced by burden material restrictions at Kobe Steel resulted in the development of a center coke charging process based on ...Extraction of Iron | Metallurgy | Blast Furnace and Reactions 2022-4-8 · The extraction of iron from its ore is a long and subdued process, that helps in s ... City ,2012-7-24 · The process of the extraction of iron is carried out by the following steps: In this metallurgical operation, the ore is concentrated by removing impurities like soil ...You can find the Blast Furnace in the city of Keldagrim, the city of the dwarves, and is a furnace used for smelting ores. Typically, smelting ores into bars is a resource-intensive process, and one of the benefits of using the blast furnace is that it only requires half as much coal while smelting the bars for everything. section 8 1 bedroom apartments for rent To produce steel first the iron ore is heated and melted in a furnace. The impurities are then removed from the molten iron. Carbon and other required alloying elements are added to make steel. Modern-day steel making is highly improved and specialized. There are two processes that are widely popular for modern-day steel making.The Basic Oxygen Steelmaking process differs from the EAF is that BOF is self-sufficient in energy. The primary raw materials for the BOP are 70-80% liquid hot metal from the blast furnace and the steel scrap need to be balanced. These are charged into the Basic Oxygen Furnace (BOF) vessel. Oxygen (>99.5% pure) is “blown” into the BOF at ...See Answer. Blast furnaces extract pure iron from the iron (III) oxide in iron ore in a two step sequence. In the first step, carbon and oxygen react to form carbon monoxide: 2C (s) + O2 (g) → 2CO (g) In the second step, iron (III) oxide and carbon monoxide react to form iron and carbon dioxide: Fe2O3 (s) + 3CO (g) → 2Fe (s) + 3CO2 (g ... johnson power pack replacement A Blast Furnace is a giant, steel stack parallel with refractory brick where the concentrated ore, coke and limestone are dumped from the top and a blast of steamy air is blown into the bottom. All the three components are crushed into small round pieces and blended and put on a hopper which regulates the input.These hot gases rise up in the blast furnace and cool down. From a maximum of 2000 °C at the level of the hot-blast nozzles (tuyere), the temperature decreases to around 200 °C up to the throat. At this temperature, the filled charge are first dried and preheated. This zone of the blast furnace is therefore called the preheating zone.Iron ore, limestone and coke is the ‘’stock’ of the blast furnace. This is fed into the furnace at its top. A variety of processes take place within the blast furnace, as the ‘stock’ slowly moves downwards and temperatures increase. The removal of oxygen through the chemical process called ‘reduction’ is crucial (oxygen combines ... luxury studio apartments san antonio Step 1: Craft a Furnace. In order for Minecraft players to make a blast furnace, they will need to gather all the necessary crafting components first. 1 and 2) and/or directly in steps through the carbon contained in the coke (Equ. 4 and 5). This way, at the end of the process liquid pig iron builds up with ...The process for operating the Blast Furnace is as follows: Place coal and/or ore on the Conveyor Belt. Cool down smelted bars with a bucket of water. Equipping ice gloves skips this step. Collect the bars from the bar dispenser and bank them. Repeat. Notes [ edit | edit source] You can find the Blast Furnace in the city of Keldagrim, the city of the dwarves, and is a furnace used for smelting ores. Typically, smelting ores into bars is a resource-intensive process, and one of the benefits of using the blast furnace is that it only requires half as much coal while smelting the bars for everything. fixer upper houses for sale near me The blast furnace process automation, measurement, and control system is a high accuracy process control with prompt online graphical information. It provides a stable, reproducible operation of the blast furnace with constant hot metal quality. It ensures shift independent plant operation where manual interactions are reduced to a minimum. korean rap generator There are two main processes for producing steel: by means of a blast furnace (= indirect reduction) in combination with a converter, or by means of an electric furnace. In the former process, iron ore is the main raw material. In an electric furnace, scrap iron is used and occasionally also sponge iron. Sponge is an intermediate product, which ...The blast furnace used is a cyclone converter furnace, which skips the making of iron pellets. This skipped step makes the entire process far more energy-efficient and lowers the carbon footprint of steel production. Steelmaking remains crucial in the industrialized world, an unavoidable process from massive scale infrastructure to the smallest ...In HIsarna ironmaking process, iron ore is processed almost directly into liquid iron or hot metal.The process is based around a type of blast furnace called a cyclone converter furnace, which makes it possible to skip the process of manufacturing pig iron pellets that is necessary for the basic oxygen steelmaking process. Without the necessity of this preparatory step, the HIsarna process is ...Aug 08, 2021 · You can find the Blast Furnace in the city of Keldagrim, the city of the dwarves, and is a furnace used for smelting ores. Typically, smelting ores into bars is a resource-intensive process, and one of the benefits of using the blast furnace is that it only requires half as much coal while smelting the bars for everything. hotels with jacuzzi in room springfield ohio 8 Oct 2017 ... Blast Furnace Process · upper part of the furnace - free moisture is driven off from the burden materials and hydrates and carbonates are ...In a blast furnace operation under low percentage of reducing materials, which intends to ... step. Figure 6 shows the flowchart of the calculation by.Step 1: Craft a Furnace In order for Minecraft players to make a blast furnace, they will need to gather all the necessary crafting components first. A large portion of the Minecraft player... 1. A machine dumps limestone and scrap steel (the charge) into the furnace. 2. After the charge melts, molten or cold iron is added. 3. Heating continues. Carbon from the iron becomes carbon monoxide gas. Impurities are separated and form slag. 4. allegiance bed and breakfast haunted The blast furnace process automation, measurement, and control system is a high accuracy process control with prompt online graphical information. It provides a stable, reproducible operation of the blast furnace with constant hot metal quality. It ensures shift independent plant operation where manual interactions are reduced to a minimum.It is used in process plants. The slag of the blast furnace has hydraulic properties which are used in cement as a additives; Slag also helps in soil stabilization. Advantages of Blast Furnace: The blast furnaces help to save fuel from 82 to …20 août 2019 ... Slags are high value byproducts of metallurgical processes, ... In modern steel making, slags originate in a blast furnace from impurities ...Blast furnace process By tec-science - 06/21/2018 18838 In the blast furnace, the iron ore reacts with the carbon contained in the coke to form grey or white pig iron. 1 Combustion process 2 Boudouard reaction 3 Preheating 4 Indirect reduction zone 5 Direct reduction zone 6 Carburizing zone 7 Melting zone 8 Tapping zone Combustion process craigslist mobile homes for sale near me Here are 6 key steps that modern steelmakers use to manufacture superior products: Iron-making. Iron is the main starting raw-material for Steelmaking. It is found in its raw form as Iron ore which is melted along with lime and coke in a blast furnace to give a more refined material. The result of this melting is a molten iron which is quite ... drake fantasy football names The blast furnace is the first step in producing steel from iron oxides. The first blast furnaces appeared in the 14th century and produced one ton per day. Even though equipment is improved and higher production rates can be achieved, the processes inside the blast furnace remain the same. ... During the steelmaking process by basic oxygen furnace, unwanted carbon combines …Step 2. Define the scope of work Next, define what activities are included in the process or task delivery and which ones are not. Many processes will have elements overlapping with other activities. Completing this step will ensure that you do not include unnecessary steps in your documentation. Step 3. Explain the inputs and outputs black barber shops The blast is then put on, and the converter is rotated into a vertical position. Immediately the flame drops, the vessel is turned down again and the blown metal is poured into a casting ladle. At this stage, the finishing additions are usually made. Hence, the process, whether acid or basic, consists of the following three stages:Key words: Blast furnace, fmea, risk assessment, blast furnace gas, network pipeline. 1. INTRODUCTION Blast furnace gas is the byproduct of casting steel production process in the steel industry and usually is composed of 22-25% CO, 16-20% CO 2, 4-5% H 2 and 51-55% of N 2 by volume. Because of CO and H 2 are combustible, blast furnace gas is ...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ... list of athletes banned for drug use 2022