Nitrogen Rejection

Nitrogen rejection has long been at the core of our business. In the late 1980s, Clark Butts, founder, recognized the demand for an efficient, economical nitrogen rejection process for natural gas streams with volumes less than 30 MMSCFD. Butts developed and patented the NiTech® process, which BCCK has successfully implemented throughout the United States. BCCK’s NiTech® nitrogen rejection unit (NRU) technology enables operators to profitably recover once by-passed reserves, regardless of nitrogen, CO2, helium, oxygen, methane or other potential contaminants, thus reducing the emission of greenhouse gases.

With minimal equipment and no cryogenic rotating equipment, the NRU delivers the efficiency of traditional cryogenic processes, typically in excess of 99 percent, with a less complex, more reliable and lower-cost design.

>> Learn more about our Nitrogen Rejection experience.

Early Nitrogen Rejection Project

Nitrogen Rejection Plant
BCCK’s first NiTech® Nitrogen Rejection Unit or NRU installation. This facility was built in 1994 in Mist, Oregon.

Nitrogen Rejection (NRU) Highlights

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NiTech® Benefits

  • Low capital cost – only minimal equipment; no cryogenic rotating equipment
  • Flexible design allowing a wide range of inlet conditions
  • Low power consumption
  • Simple, non-complex process design requiring minimal operator attention
  • Small footprint due to minimal equipment
  • Compression horsepower much lower than non-cryogenic NRU options
  • High CO2 tolerance – no processing required beyond the capability of readily available amines when the gas has high CO2 contents; higher inlet CO2 designs are available
  • Nitrogen contents from 3 percent to 90 percent reduced to as low as 1 percent
  • High efficiency – hydrocarbon recovery typically in excess of 99 percent
  • Environmentally friendly – emits no non-methane VOCs
  • Quick restart
  • Cold restart from short shutdowns, online and on-spec just restart associated compression
  • Integrated NGL extraction with high NGL extraction efficiencies (up to 93 percent ethane recovery possible)
  • GSP/NitechIV combination was proven higher efficient than Nipander. While showing higher recovery and lower energy consumption, it can perform as good as a conventional GSP in C2 recovery which is a maximum of 93%
  • Integrated helium extraction with high helium recovery
  • Applicable to streams of 5 MMSCFD to more than 500 MMSCFD

BCCK HISTORY

BCCK’s first NiTech® Nitrogen Rejection Unit installation was built in 1994 in Mist, Oregon.

BCCK began with traditional natural gas processing and treating systems, oilfield production installations and petrochemical facilities in the Southwest United States. Over time, as engineering projects became more complex and more varied, our client base expanded geographically and our technology expanded to profitably treat and process non-traditional gas, as well.

In the late 1980s, Clark Butts, BCCK’s founder, recognized the demand for an efficient, economical nitrogen rejection process for natural gas streams with volumes less than 30 MMSCFD. Butts developed and patented the NiTech® process, which BCCK has implemented throughout the United States. Since its introduction to the gas industry, the NiTech® nitrogen rejection process also has been used to process coal mine methane, thus reducing the emission of greenhouse gases.

Today, BCCK serves the natural gas industry with high quality and unique gas processing solutions.

FEATURED NRU IMAGES

FEATURED NITROGEN REJECTION VIDEOS