Diesel exhaust fluid (DEF)

The urea production facility produces about 1,100 tons of urea daily, but has the ability to shift urea production to produce diesel exhaust fluid (DEF).

Diesel Exhaust Fluid (DEF) is urea liquor, which is required, by law for, modern diesel engines for emissions control. It is injected into the exhaust stream to react with harmful greenhouse gases. DEF is a non-hazardous solution comprised of 32.5-percent urea and 67.5-percent de-ionized water. It has a slight smell of ammonia, similar to some home cleaning agents. DEF is used in by Selective Catalytic Reduction (SCR) technology to remove harmful NOx emissions from diesel engines.

  • Dakota Gas began producing DEF in April 2018.
  • Dakota Gas has the capacity to produce 64 million gallons of DEF per year.
  • Dakota Gas has about 1 million gallons of on-site storage.
  • Dakota Gas has truck and rail loading operations.
  • Dakota Gas accommodates 24/7 plant access for customers.

Fertilizers (urea, anhydrous ammonia, and ammonium sulfate) and diesel exhaust fluid