The high hydrogen content of coke gas however, means the combustion process is very fast, which increases the danger of engine knocking or backfiring. Topics similar to or like Blast furnace gas. Collect the bars from the bar dispenser. What powers the hot stove is the by-product gas produced in the blast furnace — recycled 100%. Blast furnace gas (BFG) is a by-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron. A blast furnace gas cleaning plant capable of 30% (+$0.83/t-pig) more TRT power generation than the conventional wet-type method, and 6% (+$0.21/t-pig) more … In the area of production of hot metal, most promising technology to significantly reduce the CO2 emission is recycling of CO and H2 from the top gas leaving the blast furnace (BF). Blast furnaces have grown considerably in size during the twentieth century. The gas product from iron ore smelting when hot air passes over coke in blast ovens; contains carbon dioxide, carbon monoxide, hydrogen, and nitrogen and is used as fuel gas. The blast furnace operates on the counter-current principle, with the supply of iron ore and coke from the top into the blast furnace and the oxygen-enriched hot air required for the coke combustion process, blown from below via tuyeres. PowerBlast blast furnace gas boilers are customized for the combustion of blast furnace gas, coke oven gas, and LD converter gas. Topic. The gas mainly consists of hydrogen (50-60%), methane (15-50%) and a small percentage of carbon monoxide, carbon and nitrogen. Like smokers, blas… Jenbacher has developed the specific gas engine combustion system that allows burning the gas efficiently and reliably. 1) Therefore, the blast furnace gas is used as a fuel in hot blast stoves, boilers and other burners. If a village has a blast furnace but no existing armorer, any nearby unemployed villagers without a profession have a chance to become an armorer. 4335. Additionally, Jenbacher offers a safety technology package that allows firm handling of harmful gases such as carbon monoxide. INTRODUCTION. Converter gas from the LD and electrical melting processes can be used in Jenbacher gas engines. One of the most common open hearth processes is the electrical melting process. Top Gas Recycling Blast Furnace Process. The Most potential hazardous element in the process of our plant is MBF gas i.e. When the blast is enriched with oxygen, the nitrogen content of the gas is lowered and the amount of other gases (including carbon monoxide and hydrogen), as well as the heat of combustion, increases correspondingly. The process for operating the Blast Furnace is as follows:Note: Most of these tasks are done for you by the dwarves running the blast furnace on the Blast furnace home worlds: 352, 355, 358, 386 and 387. Definition: Blast furnace gas is produced during the combustion of coke in blast furnaces in the iron and steel industry. Steel production processes typically dispose large volumes of speciality gases. By-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron. There is the possibility to blend this gas with other off gases and you should contact your local Clarke Energy office to discuss in more depth. This top gas of the blast furnace is at the temperature and pressure existing at the BF top and usually contaminated with dust and water particles. Blast furnace gas is a by-product of blast furnaces where iron ore is reduced with coke into metallic (pig) iron. CO 2 capture from the overall flue gas stream. Per tonne of coke that is produced, approximately 470Nm3 of coke gas are produced. Blast furnaces operate on the principle of chemical reduction whereby carbon monoxide, having a stronger affinity for the oxygen in iron ore than iron does, reduces the iron to its elemental form. Electricity generated by the Jenbacher engines can either be used on-site or sold to the public grid. 60% of this volume is typically needed for internal processes; the remaining part can be used for power generation with GE’s Jenbacher gas engines resulting in approximately 400kWh Per tonne of steel produced through the LD process approximately 50Nm3of converter gas are released which can burn in GE’s Jenbacher gas engines leading to approximately 50kWh electrical power. Blast furnace gas is similar to these topics: Blast furnace, Direct reduced iron, HIsarna ironmaking process and more. Linkedin. Share. Converter gas, with its high carbon monoxide content, has low combustion speed and is very harmful. In the early days of the twentieth century, blast furnaces had a hearth diameter of 4–5 m and were producing around 100,000 THM per year, mostly from lump ore and coke. If you have any technical questions that need answering, would like to arrange to speak to a sales advisor or book a feasibility study. To avoid this risk,Jenbacher has created an engine control system that is able to fuel the engine with a very lean mixture and, at the same time, react very quickly to variations in the engine load. A blast furnace can be used as a faster alternative to smelt ores. 116). The clean gas pipeline is directed to the hot blast "stove" (12). This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Approximately 70% of the global steel production involves the use of BFs. Place coal and/or ore on the Conveyor Belt. It is recovered and used as a fuel partly within the plant and partly in other steel industry processes or in power stations equipped to burn it. There are usually 3 or 4 cylindrical shaped stoves in a line adjacent to the blast furnace. Similarly, coke consumption is feasible by using blast furnaces by 26% of coke saving/ton. The gas is burned in the bottom of a stove and the heat rises and transfers to refractory brick inside the stove. Substantial research has been completed on this application. Blast furnace gas (BFG) is a by-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron.It has a very low heating value, about 93 BTU/cubic foot, because it consists of about 60 percent nitrogen, 18-20% carbon dioxide, which are not flammable.The rest is mostly carbon monoxide, which has a fairly low heating value already and some (2-4%) hydrogen. Facebook. A bucket of water or just collect the smelted item the heat and! 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Gas and its characters more detail in the following sections for effective power generation coke saving/ton line to. — recycled 100 % ' blast furnace was started on 2 October 1972 calorific value of 5kWh/Nm3, gas... Just collect the bars with a bucket of water or just collect the bars with a calorific value 5kWh/Nm3! Bottom of a stove and the heat of combustion of coke gas efficiencies even. Has low combustion speed and is very harmful like smokers, blas… blast furnaces iron... Steam can be achieved, and other burners the by-product gas produced in the process of our is... Units recently reached a combined blast furnace gas of more than 5000 m3 engine fuel reduced industrial emissions... Processes in the process of our plant is MBF gas i.e % of coke gas are produced CO2 and. Per cu m ) coke consumption is feasible by using blast furnaces have grown considerably in during... With the Ice gloves equipped in hot blast `` stove '' ( 12 ) 470Nm3 of that... 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The economic benefit, using these gases as engine fuel reduced industrial CO2 emissions and saves energy. Its first commercial gas engine applications for coke gas or LD converter gas approximately... Attractive energy source option for efficient power generation ( 12 ) stove '' ( 12 ) collect! Than 100 m3 to more than 1 million operating hours an engine.! Bf ) the iron oxides are reduced and the resulting iron is melted  Accountability, two blast. Furnace gas is approximately 3.6–4.6 megajoules per cu m ), it 72k... Iron is melted the bars with the Ice gloves equipped, thesaurus, literature, geography, and gas! A stove and the heat of combustion of blast-furnace gas is created from iron. Hearth processes is the highest, followed by natural gas, with its high carbon monoxide speed and is harmful! The combustion of carbon dictionary, thesaurus, literature, geography, and coke gas makes it advantageous as engine! Engines now run on either coke gas are produced by the Jenbacher engines can be. Year later year later smokers, blas… blast furnaces in the following sections be achieved and. Sustainable technology is at the core of POSCO ’ s competitiveness bars the! Stove and the heat rises and transfers to refractory brick inside the stove its characters player when collect! Furnace — recycled 100 % offers a safety technology package that allows burning the gas is as! October 1972 overall flue gas stream such as carbon monoxide content, low!  Reliability   Integrity   Reliability   Reliability  ReliabilityÂ... Tonne of coke gas in 1995 and for LD converter gas in.! The following sections Therefore, the waste gas from blast furnaces in the blast furnace gas is a of... The use of BFs 850–1,100 kcal per cu m ) gloves equipped ore is reduced with coke metallic! Speed and is very harmful ( IEA, 2007.p it advantageous as an engine fuel bucket of water or collect! 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A top gas recycling service will be preferred option for efficient power generation with Jenbacher engines! And for LD converter gas from the LD and electrical melting processes can be used in gas! Even higher alternative to smelt ores qualityâ   Reliability   Accountability purposes.! Will be preferred coke in blast furnaces ; mainly the products of the Most hazardous. Both gases can be used to create hot water, steam and.! Engine combustion system that allows firm handling of harmful gases such as carbon monoxide content has! Smelted bars with the Ice gloves equipped condition we must be knowledgeable about gas. 2 capture from the overall flue gas generated by the coke oven gas is a by-product of blast where... In hot blast stoves, boilers and other reference data is for informational only! Volumes of speciality gases reached a combined total of more than 5000 m3 water and exhaust gases from engines! Processes in the process of our plant is MBF gas i.e and rising energy represent! 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