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. Butts subsequently developed and patented the NiTech^® process, which BCCK has successfully implemented throughout the United States. BCCK’s NiTech NRU technology, which is now applicable to streams of 5 MMSCFD to more than 500 MMSCFD, enables operators to profitably recover once by-passed reserves, regardless of nitrogen, CO₂, helium, oxygen, methane or other potential contaminants, while providing environmentally conscious process solutions that greatly minimize methane emissions.

With minimal footprint and no cryogenic rotating equipment, the NiTech NRU delivers a highly efficient design with respect to both horsepower requirements and methane recovery, with a less complex, more reliable and lower-cost design.

Whether deploying a single or dual tower solution, our proven NiTech design has become the industry standard for both higher and lower N2 inlet gas streams. NiTech^® ULM, BCCK’s latest enhancement, is designed to achieve methane contents in the vent as low as 10 ppmv, resulting in minimal methane losses to the environment.  The patent-pending NiTech ULM delivers unparalleled results in emissions control for natural gas processing facilities, providing an environmentally friendly option while helping customers to minimize the financial effect of pending Environmental Protection Agency (EPA) regulations.

>> Learn more about our Nitrogen Rejection experience.

NiTech® Single Tower

• Robust design enabling processing of higher inlet N2 streams
• BCCK’s most utilized process design
• Effective for smaller landfill applications

NiTech® Dual Tower

• Utilizes BCCK’s single tower design with the addition of an LP processing section
• Targeted for lower N₂ inlet gas streams.
  • Yields 10-15% lower required HP than the most efficient single tower processes
  • Higher CO₂ tolerance than a single tower NRU
• Proven design that has become the industry standard for post NGL facility N2 removal

NiTech® ULM (Ultra Low Methane)

• Patent-pending design utilizes BCCK’s proven NiTech NRU with a small compressed reflux system
• Engineered to provide an ultra-clean vent stream with reduced methane content as low as 10 ppmv, resulting in minimal methane losses to the environment
• Includes minimal equipment in addition to the NiTech NRU
• Available for new facilities or retrofitted to existing NiTech units.

Nitrogen Rejection (NRU) Highlights

nru_construction

Tower-Loaded-Onto-Transport-Truck

nitrogen_rejection_construction

NRU_loadout

onsite_skid

nitrogen_rejection_tower

ETP_Skid

NG_Resources_Skid

ETP-NRU-Tower-Section-About-to-be-Packed

ETP-NRU-Tower-Sections

ETP-NRU-Tower-Section-2

ETP-NRU-Tower-Section-3

ETP-NRU-Tower-Section-4

ETP-NRU-Tower-Section-5

ETP-NRU-Tower-Section-6

NiTech^® Benefits

• Low capital cost – only minimal equipment; no cryogenic rotating equipment
• Flexible design allows 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