SEMI-COKE for industry
Semi-Coke Properties
- Appearance: Black to dark gray, dull, soft, brittle, with open porosity.
- Density & Strength: Higher strength but lower apparent and true density compared to high-temperature coke.
- Volatile Content: Varies with final retorting temperature, typically 10% to 20%.
- Reactivity: High reactivity and easy ignition. The critical air blast volume is 0.017 L/min on average, while high-temperature coke can reach 0.57 L/min.
Semi-Coke Production & Source
- Production Method: Solid product obtained from the low-temperature (500-700°C) distillation of coal.
- Raw Material Dependence: Ash content depends on the quality of the raw coal, with volatile content typically ranging from 5% to 20%.
- Comparison with Coke: Higher volatile content, larger porosity, and lower mechanical strength compared to coke.
Semi-Coke Applications
- Industrial Use: Used for the production of producer gas and water gas.
- Fuel Use: Serves as a fuel with high volatile content and good combustion performance.
- Chemical Use: Applied in synthesis gas production, calcium carbide manufacturing, and as a reducing agent in copper and phosphate ore smelting.
Our factory
In recent years, our factory has deeply embraced the concept of ecological civilization, enhancing environmental facilities and promoting energy-saving and emission-reduction technologies for green, low-carbon, and high-quality development. In 2023, it was recognized as a “National Green Factory.” The plant boasts 60,000 square meters of greenery, showcasing the harmony between ecology and industry. Through technological innovation, heat recovery, and resource integration, the factory significantly improves energy efficiency, reduces emissions, and fulfills its environmental responsibilities, driving sustainable development.
Industrial
Metallurgical Industry
Steel Mills
- Reducing Agent: Semi-coke’s high fixed carbon content and low ash characteristics make it an ideal reducing agent in steel smelting processes. It can replace partial coke or anthracite coal for use in blast furnaces and direct reduction iron production, improving smelting efficiency and reducing production costs.
- Fuel for Heating: Semi-coke can also be used as a heating fuel in heating furnaces and heat treatment equipment at steel mills, providing stable and efficient thermal energy.
Ferroalloy Plants
- Reducing Agent: In the production of ferroalloys, semi-coke serves as a reducing agent, significantly improving product quality and reducing energy consumption. Its high resistivity helps reduce electricity consumption during electric furnace smelting, enhancing production efficiency.
- Raw Material Optimization: Semi-coke’s low aluminum, sulfur, and phosphorus content reduces impurity levels in ferroalloy products, thereby improving product purity and quality.
Chemical Industry
Activated Carbon Production
- Raw Material Selection:
- Semi-coke, with its developed pore structure and good adsorption properties, is an ideal raw material for producing activated carbon. Through processes such as crushing, screening, and activation, high-quality activated carbon products can be prepared.
Methanol and Ammonia Production
- Gasification Raw Material:
- Semi-coke can be used as a gasification raw material for producing chemicals such as methanol and ammonia. Its low ash and sulfur content help reduce pollutant emissions during gasification, improving product quality.
Tar Extraction
- By-Product Utilization:
- During semi-coke production, a certain amount of tar is generated. Through tar extraction processes, it can be converted into valuable chemical products such as pitch and phenols, achieving comprehensive resource utilization.
Power Industry
Alternative Fuel
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Pulverized Coal Replacement: Semi-coke, with high calorific value, low ash, and sulfur content, improves boiler efficiency by reducing fouling and slagging.
Environmental Advantages: Semi-coke combustion emits fewer pollutants than pulverized coal, alleviating environmental pressure on power plants.
Exhaust Gas Treatment
- Desulfurization and Dust Removal: In power plant exhaust gas treatment systems, semi-coke can be used as a raw material for desulfurizers and dust collectors to purify exhaust gases containing sulfur dioxide and particulate matter, achieving compliant emissions