Coal Product Description
Coal is a combustible black or brownish-black sedimentary rock composed primarily of carbon, along with various other elements such as hydrogen, sulfur, oxygen, and nitrogen. It forms from the remains of ancient plant material that was subjected to heat and pressure over millions of years in a process known as coalification. Coal is widely used as a fossil fuel for energy generation and as a raw material in industrial processes.
Types of Coal
Coal is classified based on its carbon content and energy-producing capability:
Anthracite
Description: The highest grade of coal with the highest carbon content (86-97%).
Characteristics: Hard, glossy, and produces the most heat.
Uses: Industrial and residential heating, metallurgical processes.
Bituminous Coal
Description: Mid-grade coal with a carbon content of 45-86%.
Characteristics: Soft and shiny; high energy content; widely used for power generation.
Uses: Electricity production, cement manufacturing, and steelmaking.
Sub-Bituminous Coal
Description: Lower carbon content (35-45%) and higher moisture content.
Characteristics: Produces less energy and fewer emissions when burned.
Uses: Power generation.
Lignite
Description: The lowest grade of coal with the highest moisture content (up to 45%).
Characteristics: Soft, brown, and produces less energy.
Uses: Power generation, especially in regions where it is locally abundant.
Key Specifications
Calorific Value (Energy Content): Ranges from 3,000 to 8,000 kcal/kg depending on the grade.
Moisture Content: Varies by type, with lignite having the highest and anthracite the lowest.
Ash Content: Residual mineral matter left after combustion, typically 3-40%.
Sulfur Content: Varies from low (<1%) to high (>3%), affecting environmental emissions.
Applications
Power Generation: Used in thermal power plants to produce electricity.
Steel Production: Essential for coke production in blast furnaces.
Cement Manufacturing: Used as a fuel source for kilns.
Residential Heating: Especially anthracite coal for heating homes.
Chemical Industry: As a feedstock for producing chemicals, synthetic fuels, and fertilizers.
Advantages of Coal
Widely available and affordable energy source.
High energy density, especially in bituminous and anthracite grades.
Established infrastructure for mining, transport, and usage.
Environmental Considerations
Coal combustion releases greenhouse gases and pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter.
Efforts are underway to mitigate these effects through cleaner technologies like carbon capture and storage (CCS) and coal gasification.
Coal remains a critical resource for energy and industrial processes globally, despite increasing attention to renewable energy sources.
Steam coals range Gar 5000 to Gar 6500 available from various mines in Kalimantan and Sumatra. Price are based on prevailing ICI rates.
Features Of Coal Coal is a primary source of energy, mainly burned for the generation of the electricity or heat. , and is also used for industrial purposes, such as refining metals.We supply imported (Indoseian) Coal to the domestic market. Applications Electricity Heat Metal refining
Coal is a nonrenewable fossil fuel that is combusted and used to generate electricity. Mining techniques and combustion are both dangerous to miners and hazardous to the environment; however, coal accounts for about half of the electricity generation in the United States. With our years in the coal mining sector, we can supply the quantity of 1000-2000MT every month.
Steam, anthracite Coal
Coal
PT Riff Sejahtera Bersama is the subsidiary of RIFFY GROUP that become the face and voice of the company in the retail market. PT Riff Sejahtera Bersama has a great contract with every coal mine industry in Kalimantan & Sumatra, Indonesia. We are responsible for distributing go-to-market worldwide, providing supply, and creating partnerships with buyers and retailers. We ensure the safest payment method for buyers as the quality and quantity of the product are well secured. We happily invite buyers to visit the site if necessary, easy arrangements for our discussion, or perhaps an online conference to talk about the detailed specifications buyers need. Price FOB Indonesia: $92 / Mt Price CIF: to be discussed
Supplier of coal from Indonesia . Kindly advise details of order for confirmation . Fob n Cfr (subject to confirmation) contracts only .
coal, one of the most important primary fossil fuels, a solid carbon-rich material that is usually brown or black and most often occurs in stratified sedimentary deposits. We are Supplying Indonesia and Africa mined Coal . We can Supply Type 1 to Type 7 Gross Calorific Value ( 6,500 6,300 6,000 5,800 5,500 5,300 5100 and below)
Color Black or brown, varying shades Texture Can be smooth, granular, or banded Hardness Soft to hard, depending on coal type Luster Dull to shiny Density Varies depending on coal type, typically around 1.2-1.5 g/cm�³ Porosity Varies, can be porous Composition Mainly composed of carbon, along with hydrogen, sulfur, oxygen, and trace minerals Moisture Content Can range from a few percent to over 30% Volatile Matter Varies, typically 20-45% Fixed Carbon Varies, typically 40-90% Ash Content Varies, typically 3-30% Heating Value (BTU/lb) Varies depending on coal type, typically 8,000-14,000 BTU/lb Heating Value (MJ/kg) Varies depending on coal type, typically 24-33 MJ/kg Combustion Characteristics Burns to release heat, producing carbon dioxide and other gases
Specs: Volatile material from 14% to 45% available. Low price coal is from Indonesia with bench mark price of ICI OTHER origin are Kazakhstan, Russia, South America
