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This section provides an overview for coal gas as well as their applications and principles. Also, please take a look at the list of 3 coal gas manufacturers and their company rankings.
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Coal gas, also known as coke oven gas, is a type of gas primarily produced in coke ovens, mainly at steel mills. Historically, it was the main raw material for city gas production. However, in recent decades, it has been primarily used as fuel in steel mills and for power generation.
Coal gas consists of approximately 50% hydrogen and 30% methane, along with smaller amounts of carbon monoxide, nitrogen, heavy hydrocarbons, and carbon dioxide. The emergence of the hydrogen energy era has sparked interest in producing hydrogen from coal gas.
Coal gas is produced through the high-temperature dry distillation of coal in coke ovens. This process generates gases such as carbon dioxide, carbon monoxide, hydrogen, and methane, as well as steam, coal tar, benzol, and other byproducts, leaving behind coke.
The coke is utilized in steelmaking and foundry production, while coal tar finds applications as a plasticizer for vinyl chloride and polyester resin, in wood preservation, tire carbon black, rust prevention for cast-iron pipes, and in producing carbon materials, electrodes, and dyes.
Benzol is used to manufacture nylon, styrene, and paint solvents. Sulfur removed from the gas is converted into ammonium sulfate for use as chemical fertilizer. Additionally, hydrogen production from coal gas is an area of ongoing development.
*Including some distributors, etc.
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Chiyoda, established in 1948, is a global integrated engineering services supplier headquartered in Japan specializing in engineering, procurement, and construction (EPC) projects worldwide. The company’s services include planning, engineering, procurement, construction, and maintenance for various facilities related to electricity, gas, petroleum, pharmaceuticals, and more. The company also engages in the exploration of oil, gas, and mineral resources, along with investment and financing activities in this field. Chiyoda offers integrated engineering services across the globe with offices in Asia, the Middle East and Europe.
Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
Australia
|
1 | 50.0% |
|
Japan
|
1 | 50.0% |
