What is known as metallurgical coke?
Metallurgical coke is produced by destructive distillation of coal in coke ovens. The material remaining is called coke. Most metallurgical coke is used in iron and steel industry processes such as blast furnaces, sinter plants, and foundries to reduce iron ore to iron.
What is metallurgical coke made of?
bituminous coal
What is Metallurgical Coke? Metcoke is made from low ash, low sulfur bituminous coal, with special coking properties. It is inserted into ovens and heated to 1000 ˚F to fuse fixed carbon and inherent ash and drive off most of the volatile matter.
What are the characteristics of metallurgical coke?
Metallurgical coke is a porous, fissured, silver-black solid and is an important part of the ironmaking process since it provides the carbon (C) and heat required to chemically reduce iron burden in the blast furnace (BF) to produce hot metal (HM).
Is there an alternative to coking coal?
Blast furnaces need coal, but there is an alternative technology called an Electric Arc Furnace (EAF). This is responsible for approximately 30% of the world’s steel production and does not require coal.
What is met coal used for?
Metallurgical coal, also known as met coal, coking coal, or steelmaking coal, is a vital ingredient for making steel, iron alloy, carbon and other metals used in everything from buildings, tools, trains, planes, and automobiles, to cookware, cutlery, surgical tools and implants.
How does coke make steel?
Coke is used as a fuel and a reducing agent in melting iron ore. When coke is consumed it generates intense heat but little smoke, making it ideal for smelting iron and steel. Prior to the 1880’s, steel was produced using charcoal. By 1920, nearly 90% of US steel was produced using coke.
Why is coke preferred to coal in metallurgical process?
Coke is preferred over coal for metallurgy because it has a greater boiling point than coal that is over 3800° C.
Can you make steel without coking coal?
Now, nearly all new steel globally is produced using iron oxide and coking coal. Coking coal is usually bituminous-rank coal with special qualities that are needed in the blast furnace. While an increasing amount of steel is being recycled, there is currently no technology to make steel at scale without using coal.
Can you make steel with renewable energy?
Hybrit started test operations at its pilot plant for green steel in Lulea, northern Sweden, a year ago. It aims to replace coking coal, traditionally needed for ore-based steel making, with renewable electricity and hydrogen. Hydrogen is a key part of the EU’s plan to reach net zero greenhouse gas emissions by 2050.
What is meant by coking?
Coking is the heating of coal in the absence of oxygen to a temperature above 600 °C to drive off the volatile components of the raw coal, leaving a hard, strong, porous material of high carbon content called coke.
How is metallurgical coke produced in a coke oven?
Metallurgical coke or Met coke in short is a hard carbon material produced in the process of the “destructive distillation” of various blends of bituminous coal. It is produced by carbonization of coal at high temperatures (1100°C) in an oxygen deficient atmosphere in a coke oven.
What kind of coal is used for metallurgical coke?
Metallurgical coke is made from low ash, low sulfur bituminous coal, with special coking properties, which is inserted into ovens and heated to 1000F to fuse fixed carbon and inherent ash and drive off most of the volatile matter. The final product is a nearly pure carbon source with sizes ranging from basketballs…
Where does oxbow get their metallurgical coke from?
Metallurgical Coke. Oxbow Carbon LLC purchases, screens and distributes more than a million tons of metallurgical coke annually. Oxbow distributes metallurgical coke sourced from China, Colombia, Europe and the United States to companies throughout Asia, the Americas, and Europe.
What are the end uses of met Coke?
End Uses. Met coke is used in products where a high quality, tough, resilient carbon is required. Met coke, limestone, and iron ore are mixed together in high temperature furnaces where extreme heat causes the chemical properties to bond, forming iron and steel.