The Core Separations bulk delivery system (BDS) is designed for users operating multiple SFC systems who require an intermediate supply of cryogenic CO₂ without the need for large-scale bulk storage typically provided by major gas suppliers. It offers a cost-effective solution for delivering high-pressure CO₂ to laboratories with continuous demand, while significantly reducing the need for manual handling of individual CO₂ cylinders.

The Core Separations BDS can be configured to meet a broad range of requirements, from supplying CO₂ to analytical instruments through to supporting preparative SFC applications with significantly higher CO₂ demands.

The bulk delivery system is designed to compress cryogenically stored liquid CO₂,

initially supplied at 22 bar, making it ready for use in either Supercritical Fluid

Extraction (SFE) or Supercritical Fluid Chromatography (SFC) systems. It operates

at a maximum pressure of 80 bar, allowing CO₂ to be delivered at 74 bar to prevent

common issues with phase change from liquid to gas when CO₂ is piped over long

distances at lower pressures. The delivery pressure is adjustable to meet specific

requirements. The system requires no active cooling and maintains the buffer tank

at 80 bar, with a front-end pressure regulator supplying CO₂ to the instrument at

the desired pressure.