What is direct reduction process?

Direct reduction is defined as a process that produces a solid iron product from iron ore using natural gas or a carbon based reductant.

What is direct reduction iron process?

The direct reduction process uses pelletized iron ore or natural “lump” ore. One exception is the fluidized bed process which requires sized iron ore particles. The direct reduction process can use natural gas contaminated with inert gases, avoiding the need to remove these gases for other use.

What is direct reduction in blast furnace?

Direct reduction of iron is the removal of oxygen from iron ore or other iron bearing materials in the solid state, i.e. without melting, as in the blast furnace. The reducing agents are carbon monoxide and hydrogen, coming from reformed natural gas, syngas or coal.

What is a direct reduction plant?

Direct Reduction is an iron making process for the new era, which utilizes natural gas to reduce iron ore to produce Direct Reduced Iron (DRI).

What is HyL process of sponge iron making?

The HyL process is a batch process in which rich, lump iron ore is reduced in a retort by hot, reformed natural gas. The gas enters the retort in a steady flow from the top of the reactor, passes through the ore bed, and then out the bottom of the vessel.

What is direct reduction in logic?

Definition of direct reduction : a reduction of a syllogistic argument to the first figure by converting or obverting one or more of its propositions or by converting or obverting and interchanging the premises —contrasted with indirect reduction.

What is the difference between direct reduction and indirect reduction?

Indirect reduction is when iron oxide is reduced by Carbon (ii) oxide gas. Direct reduction is when the ore is reduced by Carbon element also known as coke.

Is used for reforming of natural in HYL process?

HYL Self-reforming process. This process method is based on the reduction of iron ores with reducing gases, which are generated from partial combustion and in-situ reforming of natural gas, taking advantage of the catalytic effect of the metallic iron inside the HYL reduction reactor.

What is DRI technology?

Direct Reduced Iron (DRI), also known as Sponge Iron, offers an alternative steel production route to BF-BOF and Scrap-EAF routes. In DRI, iron ore is reduced in its solid state – unlike BF process where a liquid metal is formed during reduction. DRI can then be transformed to steel in electric arc furnaces.

What is the indirect reduction?

Definition of indirect reduction 1 : the process of reducing a syllogistic argument to the first figure by taking the contradictory of the conclusion as a premise and getting the contradictory of one premise as the new conclusion —contrasted with direct reduction.

How many types of reduction are there in logic?

We consider two traditional forms of logical reduction: subsumption and entailment.

What is indirect reduction process?

1 : the process of reducing a syllogistic argument to the first figure by taking the contradictory of the conclusion as a premise and getting the contradictory of one premise as the new conclusion —contrasted with direct reduction.