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Coke reactivity test furnace (CRI)

Coal & Coke >> Coke reactivity test furnace (CRI)

Coke reactivity test furnace (CRI)


Please note: The image below shows the coke reactivty test unit together with the tumbler.

  ASTM D 5341–99 Coke Reactivity Test Unit:

Technique for determining lump coke reactivity in carbon dioxide gas at elevated temperatures, and its strength after reaction in carbon dioxide gas by tumbling in a cylindrical chamber referred to as the ‘I - tester’.

When coke lumps descend in the blast furnace, they are subjected to reaction with countercurrent CO2 and to abrasion as they rub together and against the walls of the furnace. These concurrent processes physically weaken, and chemically react with, the coke lumps producing an excess of fines that can decrease burden permeability and result in increased coke rates and lost hot metal production. The test method is designed to indirectly measure this behaviour of coke in the blast furnace.

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ASTM D5341-99 Tumbler Test For Coke:

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