Kemira Oyj and Terra Industries Inc. announced that they have executed a license agreement whereby Kemira Specialty has granted to Terra Environmental Technologies certain exclusive rights to Kemira’s Denoxium product and technology in the United States, Canada and Mexico. TET will market the product under the brand name TerraCair.
Selective catalytic reduction systems are used in conjunction with nitrogen-based products — usually urea — to reduce nitrogen oxide emissions from diesel engines. This technology is used commonly in Europe to meet emissions standards for heavy-duty vehicles, and those same standards are beginning to take effect in North America. Kemira says it has developed Denoxium — a mixture of urea, ammonium formate and water — as a fully compatible and interchangeable replacement for urea in such systems.
According to the companies, TerraCair offers users a number of benefits over urea in SCR applications, including better performance at lower temperatures: urea crystallizes at 12 degrees Fahrenheit, whereas TerraCair is effective at temperatures as low as -22 degrees F.