Composition of Blast Furnace Gas, COG, & PCM ,

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  • เผยแพร่เมื่อ 7 ก.ย. 2024
  • 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 (3.5 MJ/m3), because it consists of about 60 percent nitrogen and 18-20% carbon dioxide, which are not flammable.
    Coke Gas
    Coke gas is a by-product of industrial coke production from pit coal, coke gas is created by high-temperature dry distillation of coking coals in the absence of oxygen. The gas mainly consists of hydrogen (50-60%), methane (15-50%) and a small percentage of carbon monoxide, carbon and nitrogen. With a calorific value of 5kWh/Nm3, coke gas constitutes a high-value fuel for effective power generation with Jenbacher gas engines.
    Blast Furnace Gas
    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 0.9kWh/Nm3, which on its own is typically not high enough for combustion in a gas engine. 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.
    Converter Gas
    Converter gas is created from pig iron during the steel production process. Steel-making technology can be categorised into two different processes: blow moulding or open hearth. Within the blow moulding process, the pig iron is refined with oxygen or air, lowering the carbon proportion and providing enough process heat to maintain the steel liquid. With 60% of the worldwide raw steel production, the Linz-Donawitz (LD) process, classified as a blow moulding process, is the most common production method to generate raw steel. On the other hand, the open hearth process extracts the oxygen of the added scrap and ore, requiring additional heat supply for the steel-making process. One of the most common open hearth processes is the electrical melting process. Converter gas from the LD and electrical melting processes can be used in Jenbacher gas engines. The gas consists of about 65% carbon monoxide, 15% carbon dioxide, 15% nitrogen and small amounts of hydrogen and methane.
    Concept of Steel Gas Utilisation
    Varying compositions, as well as calorific values and the combustion behaviour Jenbacher gas engines that make efficient use of these gases for combined generation of heat and electricity. In general, the stable composition of coke gas makes it advantageous as an engine fuel. The high hydrogen content of coke gas however, means the combustion process is very fast, which increases the danger of engine knocking or backfiring. 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. Converter gas, with its high carbon monoxide content, has low combustion speed and is very harmful. Jenbacher has developed the specific gas engine combustion system that allows burning the gas efficiently and reliably. Additionally, Jenbacher offers a safety technology package that allows firm handling of harmful gases such as carbon monoxide. Both gases can be used to create hot water, steam and electricity. The hot water and exhaust gases from the engines are fed into boilers. The resulting steam can be used within the steel production processes. Electricity generated by the Jenbacher engines can either be used on-site or sold to the public grid. Converter gas electrical efficiencies of up to 37% can be achieved, and coke gas efficiencies are even higher Also Check Out These Playlist According to Your Interest
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ความคิดเห็น • 7

  • @user-xk1om8vv4i
    @user-xk1om8vv4i 9 หลายเดือนก่อน

    Very Very nice sir

  • @aritramajumder9704
    @aritramajumder9704 ปีที่แล้ว +1

    If N2 mixes up with COG gas, will burner of furnace stop working?

  • @adarsharout6369
    @adarsharout6369 3 ปีที่แล้ว +2

    NM3 is Normal m3 not Newton m3

  • @pgangulybf
    @pgangulybf ปีที่แล้ว

    Nm3 means Normal cubic meter

  • @shiv4397
    @shiv4397 ปีที่แล้ว +1

    What's the Sulphur % in BF gas

  • @souravkumarbisoisingh6815
    @souravkumarbisoisingh6815 3 ปีที่แล้ว +1

    Thank u sir for this information...great help 🙏🙏🙏