SulfaTrap™-NRU is a proprietary ceramic sorbent that can selectively remove N2 from natural gas and biogas

The adsorption process is driven by a pressure swing cycle (PSA) which delivers a high purity hydrocarbon stream that meets the sale gas BTU requirements, and a nitrogen-rich reject stream that can either be flared or re-compressed for further utilization.

A multi-stage PSA system can effectively reduce the total N2 content of the gas to less than 1% v/v, while achieving 70-95% hydrocarbon. The operational cost and capital requirement estimated for the new system indicates the new technology compares very favorably against traditional cryogenic separation systems and the published results for state-of-the-art membrane and adsorbent-based N2 rejection systems.

  • High Selectivity

    Kinetic selectivity towards nitrogen

  • High Tolerance

    High tolerance to heavy hydrocarbon species in the gas

  • Single Stage Treatment

    Single stage treatment achieves < 1% v/v N2 with >70% methane recovery

  • Continuous Moisture Removal

    A standard reactivation system allows continuous moisture removal to avoid any operational interruptions

  • Low CAPEX

  • Low OPEX

    Low OPEX compared to state-of-the-art separation technologies such as cryogenic, membrane, and carbon molecular sieve

SulfaTrap offers full service engineering, design and construction services including modular fabrication, field services and material and process support.

SORBENTS FOR NITROGEN REJECTION

Nitrogen (N2) rejection and removal

SulfaTrap™-NRU

SulfaTrap™-NRU Nitrogen rejection sorbent