By Products

During the coking process “coke oven gas” is produced from the volatile matter of the coal. The raw coke oven gas contains an array of organic compounds that are removed from the gas stream by a variety of secondary processes in the By Product System. These secondary materials which include coal tar, light oil and ammonia sulfate are collected and sold to customers as a raw material to be further refined and/or reacted into a finished product. Moisture in the coal produces water vapor which is removed from the gas stream and ultimately treated and discharged in accordance to conditions of the discharge permit.

  • Coal Tar – The tar is processed into numerous other products and is used in the electrodes for aluminum furnaces, pavement sealers, and asphalt and roofing shingles.

  • Ammonium Sulfate – Is sold in a crystalline form in bulk and is used to produce fertilizer.

  • Light Oil – Contains benzene, toluene and xylene and is processed into cumene which is used in the production of high density thermoplastics.

  • Coke Oven Gas – The primary use of coke oven gas is to provide the heat energy in the coking process. More gas is produced from the coking process than is needed for the heating process. ERP Coke strives to utilize all of this energy. Our goal is to minimize the flaring of this gas to atmosphere.