Coking coal | Britannica

14-08-2020· In coal utilization: Coking coals. Although chemical composition alone cannot be used to predict whether a coal is suitable for coking, prime coking coals generally have volatile matter contents of 20 to 32 percent—i.e., the low- and medium-volatile bituminous ranks.

What is Coking Coal - Aspire Mining Limited

Bituminous class coals of high, medium, and low volatile rank that possess these properties are called “coking” coals. High quality coking coals are in great demand by steel producers, who need these coals to make high quality coke to maximise the productivity of their blast furnace operations. China Market. The Chinese coking coal market ...

medium volatile coking coal, medium volatile coking coal ...

343 medium volatile coking coal products are offered for sale by suppliers on Alibaba.com, of which coal accounts for 4%. A wide variety of medium volatile coking coal options are available to you, such as lump. You can also choose from bituminous coal medium volatile coking coal, ...

Classification of Coal - Engineering ToolBox

1) Volatile matter - dry mineral matter free basis. In coal, those products, exclusive of moisture, given off as gas and vapor determined analytically. Anthracite coal creates a steady and clean flame and is preferred for domestic heating.

medium volatile coking coal, medium volatile coking …

Coking Coal W e have high, medium and low volatile Coking Coals, This mix allow as to create high quallity coke. Coking Coal ZAQUE High Volatile Coking Coal ZAQUE Mediwm Volatile Coking Coal ZAQUE Low Volatile Size: Any Size: Any Size: Any Moisture: < 5 % Moisture: < 5 % Moisture: < 5 % Ash: 9 % Ash: 7 % Ash: 6 % Sulfur: 0.45 % Sulfur: 0.45 % Sulfur: 0.75 % BTU/lb: 11,748 BTU/lb: …

COKE 'FROM MEDIUM-VOLATILE AND ILLINOIS COALS

detriment to the coke made from its blends with medium-volatile coal (Jackman et al., 1959). Average analyses and plastic properties of all coals used in this investiga- tion are shown in table 1. CARBONIZATION TESTS In discussing the results of the coking tests, the medium-volatile coals studied have been divided into three groups.

Bituminous coal | coal classification | Britannica

High-volatile bituminous coal is classified on the basis of its calorific value on a moist, ash-free basis (ranging from 24 to 33 megajoules per kilogram; 10,500 to 14,000 British thermal units per pound), while medium-volatile and low-volatile bituminous coals are classified on the basis of the percentage of fixed carbon present on a dry, ash-free basis (ranging from 69 to 78 percent for ...

Review on Modeling of Coal Blends for Prediction of Coke ...

function of the reflectance of the vitrinite types contributed by each coal in the blend, called Vitrinite Coking Index , whose value growth from 0.25 to 1; Lower values (0.25 to 0.4) belong to high-volatile coals, and higher values (0.8 - 1) to low-volatile coals.

Coal Marketing International

Coal such as this is the most expensive and coke manufacturers try and reduce costs by using coals classed as soft coking (make a weaker coke) and semi-soft coking (are weakly coking) coals. Soft coking coals by definition tend to have a high volatile matter content and produce a …

Influence of Geology on CSR.(Coke Strength After Reaction ...

2 have become the principal criteria by which coals are selected to make blast furnace coke. Typical western Canadian medium volatile, Inertinite-rich coking coals produce cokes that are among the world's best in this test. Vitrinite reflectances of 1.0 to 1.6%, inertinite contents of >30%, alkalinity indices of <1.0, high ash-fusion temperatures

Review on Modeling of Coal Blends for Prediction of Coke ...

function of the reflectance of the vitrinite types contributed by each coal in the blend, called Vitrinite Coking Index , whose value growth from 0.25 to 1; Lower values (0.25 to 0.4) belong to high-volatile coals, and higher values (0.8 - 1) to low-volatile coals.

Volatile Matter (Part of Proximate Analysis), Coal ...

07-10-2019· Both volatile matter and fixed carbon are used to define coal rank in high-volatile, medium-volatile bituminous, and higher-rank coals in the U.S. classification system (ASTM method D388-12; American Society for Testing and Materials, 2013, p. 390–396).

Argus/IHS McCloskey's Coking Coal Price Index | Argus …

API C2 index: Represents mid-volatile coking coal exported from the east coast of Australia. It is an average of the Argus fob Australia mid-volatile coking coal and IHS McCloskey mid-volatile coking coal fob marker assessments. API C8 index: Represents premium hard, low-volatile coking coal delivered to China.

high energy coals Queensland for the PCI market

given coal throughput. Low volatile coal also allows the mill capacity to be increased up to 40% above that of a 50 Hardgrove Grindability Index coal, thus allowing the steelworks to increase injection rates without further capital expenditure on additional milling capacity. Semi soft coking, low and medium volatile thermal coals from

Influence of Geology on CSR.(Coke Strength After Reaction ...

2 have become the principal criteria by which coals are selected to make blast furnace coke. Typical western Canadian medium volatile, Inertinite-rich coking coals produce cokes that are among the world's best in this test. Vitrinite reflectances of 1.0 to 1.6%, inertinite contents of >30%, alkalinity indices of <1.0, high ash-fusion temperatures

Metallurgical Coal and Coke Testing - SGS

tool for evaluating medium and low volatile coking coals for your facility. MOVEABLE WALL OVEN TEST SGS uses a moveable wall oven to accommodate your coal carbonization testing. Our 18’ oven holds a charge of 650-750 lbs of coal to test new or modified coal blends. This oven produces coke of suitable size and quantity for