Common specifications for carbon molecular sieves involve physical parameters such as particle size, bulk density, and compressive strength, as well as specific models and operating conditions tailored to different applications. The following is a summary based on common industrial standards:
**Particle Diameter:** Typically 1.0–2.1 mm; specific sizes vary by model (e.g., 1.3–1.8 mm, 1.9–2.1 mm, or 1.1–1.3 mm) to meet the filling requirements of Pressure Swing Adsorption (PSA) nitrogen generation equipment.
**Bulk Density:** Generally ranges from 630–690 g/L (e.g., 630–660 g/L, 630–650 g/L, or 650–690 g/L), influencing adsorbent packing density and equipment design.
**Crushing Strength:** Typically no less than 70–100 N/particle (e.g., ≥100 N/particle or 70–100 N/particle), ensuring resistance to wear and pulverization during PSA cycles.
**Models and Applications:** Common models include CMS-220, CMS-240, CMS-280, and ZYCMS-310. These models correspond to varying nitrogen purities (e.g., 95%–99.999%), yields (500–390 Nm³/t·h), and air-to-nitrogen ratios (1.6–6.4), making them suitable for nitrogen generation processes in industries such as petrochemicals and electronics manufacturing.
**Operating Parameters:** Adsorption pressure is typically 0.75–0.8 MPa (or 5–8 kg/cm²), with an adsorption cycle of 2 × 60 seconds to optimize oxygen-nitrogen separation efficiency. These specifications can be adjusted based on specific process requirements; for instance, high-purity nitrogen generation may utilize models with higher crushing strength.