Long-flame coal (grade D) is a high-quality bituminous coal with an increased content of volatile matter. It is characterized by prolonged combustion and the formation of a long, stable flame. With moderate calorific value and low ash content, it is convenient to use and widely applied in power generation, communal heating systems, and industrial processes that require steady, long-lasting combustion
Long-Flame coal (grade D)
Long-Flame coal (grade D)
- Prolonged combustion — ensures stable temperature maintenance without frequent reloading
- Long flame formation — ideal for furnaces with large combustion chambers and convection systems
- Good calorific value — 19–23 MJ/kg, sufficient for effective heating and steam generation
- Low ash content and good caking properties — reduced waste and easy operation
- Cost-effective — more economical compared to anthracite and other energy sources
- Energy sector: thermal power plants, boiler facilities, and district heating systems
- Metallurgy: used as fuel for heating and smelting in specific technological processes
- Industry: cement, brick, and lime production requiring long-lasting combustion
- Private heating: boilers and stoves with manual or automatic loading, where economical long-burning fuel is preferred
Carbon content: 70–80%
Density: 1000–1400 kg/m³
Vitrinite reflectance: 0.4–0.79%
Calorific value: 5000–5800 kcal/kg
Moisture content: 17–19%
Ash content: 7–40%
Packaging and storage
Packaging:
Supplied in bulk, ensuring convenient loading, transportation, and unloading. This format is optimal for large industrial consumers, thermal power plants, and boiler facilities.
Storage Conditions:
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Store in covered or open storage areas with protection from precipitation
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Provide drainage to prevent over-moistening
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Ensure ventilation to avoid self-heating and spontaneous combustion
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Keep away from sparks and open flames
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For long-term storage, monitor the internal temperature of the coal mass
Delivery and payment
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01
Placing an order
You select a product and place an order in a few minutes.
02
Order confirmation
The manager will contact you to clarify details and confirm
03
Payment for the order
Convenient and secure payment methods are offered.
04
Order delivery
The order is delivered quickly and in secure packaging.
Frequently Asked Questions
01. Where Is Bituminous Coal Used?
Bituminous coal is widely used in the energy sector for electricity generation, in metallurgy (coking), and in industry as fuel and a raw material for chemical processes
02. What Is the Calorific Value of Coal?
Bituminous coal has an average calorific value of 5,500–7,500 kcal/kg, while lignite (brown coal) ranges from 3,000–4,500 kcal/kg, making bituminous coal more energy-efficient
03. How Should Coal Be Stored?
Coal should be stored in a dry, well-ventilated area, protected from precipitation. It is especially important to keep lignite dry, as it compacts and loses calorific value more quickly
04. How Environmentally Friendly Is Coal?
Coal combustion releases carbon dioxide and ash. To reduce environmental impact, modern filters and flue gas cleaning technologies are used. Bituminous coal is considered more environmentally friendly than lignite due to its lower moisture and impurity content
05. What Is Lignite Used For?
Lignite is used in energy production, municipal services, heating homes and enterprises, and as a raw material in the chemical industry
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Artur Malakhov - director of the department