What is Metcoke?
is made by destructive distillation of a blend of selected
Bituminous coals (called Coking coal or Metallurgical coal)
in special high temperature ovens in the absence of oxygen
until a greater part of the volatile matter is driven off.
The resulting product, COKE, consists principally of Carbon.
Traditionally, chemistry, size & strength (both cold as
well as hot) have been considered the most important properties
for use in the blast furnace. The quality of the constituent
coals determines the characteristics of the resultant coke.
Coke is primarily used to smelt iron ore and other bearing
materials in blast furnaces, acting both as a source of heat
and as a chemical reducing agent to produce pig iron or hot
metal. Coke, iron-ore and limestone are fed into blast furnace,
which runs continuously. Hot air blown into the furnace burns
the coke, which serves as source of heat and as an oxygen
reducing agent to produce metallic iron. Limestone acts as
a flux and also combines with impurities to form slag. Coke
also serves as a structural material to support the deep bed
of coke/iron oxide/limestone that makes up much of the furnace
volume. It is in this last role that its properties are crucial.
It is important that it does not degrade (e.g. break up into
small particles) during its descent through the oxidizing
hot gases passing through the stock region of the furnace.
To produce high quality blast furnace coke, high quality coal
must be used. High quality coals are those coals that when
coked together produce the highest stability and CSR (Coke
Strength after Reactivity) to support the blast furnace burden
and allow maximum production.
Ash Metallurgical Coke is required for metallurgical and chemical
industries and is used as the primary fuel where high temperature
and uniform heating is required. The industrial consumers
of LAMC include integrated steel plants, industry/foundries
producing Ferro Alloys, Pig Iron, Engineering Goods, Chemicals,
Soda Ash and Zinc units etc.
At GNCL, we manufacture LAMC of various specifications and
sizes, customized to meet the requirements of the clients
with whom we maintain long term relationships. With the economy
looking very buoyant the demand outlook for superior quality
(low ash content) coke is positive and the company strives
to bridge the demand supply gap by adding fresh capacity and
manufacture high quality coke.