Coal and Coke Test Equipment for Pilot Plants

The range of coal and coke tests carried out in a furnace or oven has grown over many years, and Carbolite Gero has responded to the requirements of each new standard by designing a furnace to suit the specific requirements of each test method.

As a result, Carbolite Gero products are frequently specified as the reference equipment used in coal laboratories, inspection companies, power plants and steelworks throughout the world.

The range includes international coal and coke testing and iron ore evaluation test methods, including ISO, ASTM, EN, BS, and DIN.

Furnace to determine CRI & CSR to ASTM D 5341-99

ASTM D 5341-99 Method for Measuring Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR).

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’.

Tumbler for Coke Reactivity ASTM D5341-99 (CRI-CSR)

A single tumbler unit is supplied to enable tumble testing in accordance with ASTM D5341 99

Furnace to determine CRI & CSR to ISO 18894

ISO 18894 Method for Measuring Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR).

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’.

Tumbler for Coke Reactivity ISO 18894 (CSR)

A single tumbler unit is supplied to enable tumble testing in accordance with ISO 18894.

Coke Test Oven (CTO/15 – 7kg)

Carbolite Gero's pilot-scale fixed wall coking oven replicates operating conditions found in commercial coke ovens and can be used for coke oven research.

Moving wall coking oven 500lb /227kg

Carbolite Gero’s pilot-scale moving wall coking oven replicates operating conditions found in commercial coke ovens. The oven features a moving wall and continuously measures the maximum coke oven wall pressure and internal gas pressure developed during the carbonisation process.

Iron ore reducibility

  • A single furnace for testing to one of the following standards or
  • A furnace which can combine up to three of the following ISO standards ISO 4695:2007 - Iron ore reducibility
ISO 4695:2007 - Iron ore reducibility
  • Reducibility may be defined as a measure of the ease with which oxygen combined with iron can be removed from natural or processed iron ores by a reducing gas, which is expressed as the rate of reduction at an atomic ration O/Fe = 0.9, relative to the iron (III) state.
  • Test consists of isothermal reduction of a test portion at a specified size range in a fixed bed at a temperature of 950ºC using a reducing gas consisting of CO and N2.
ISO 4696-1:1996 Low temperature disintegration test
  • Evaluating the disintegration behaviour of iron ores reduced in a fixed bed under specific conditions relevant to the low temperature zone in the blast furnace for iron making. This method is a measure of the breakdown of blast furnace burden materials under conditions resembling those in upper part of the blast furnace.
ISO 4696-2:2007 - Static low temperature reduction
  • Evaluating the reduction behaviour of iron ores reduced in a fixed bed under specific conditions relevant to the low temperature zone in the blast furnace for iron making.
ISO 4698:2007 - Determination of relative free-swelling index
  • Determination of swelling of fired iron ore pellets of a specified size range under isothermal reduction.
ISO 7215:2007- Determination of reducibility of iron ores
  • Reducibility may be defined as a measure of the ease with which oxygen combined with iron can be removed from natural or processed iron ores by a reducing gas, which is expressed as the rate of reduction at an atomic ration O/Fe = 0.9, relative to the iron (III) state.
ISO7992:2007 - Iron ores : Determination of reduction properties under load.
  • Method for testing the physical stability of iron ores by measuring the change in the differential gas pressure across a bed of the test portion and the change in the height of the bed during reduction under static load.