Calculators
Catalyst Loading Calculator
Reactor bed volume, weight, and loading density for dense or sock-loaded fixed-bed reactors.
Method: Cylindrical bed volume V = π/4 · ID² · H. Weight = V · bulk density. Dense (machine) loading typically yields 5–10% higher packed density than sock loading — the tool applies a default 7% discount to the entered density for sock loading unless the user has already supplied a sock-specific CBD. Always use the vendor-supplied compacted bulk density (CBD) when available. Source: Cat Handling Services / Unicat loading best-practice guidelines; typical vendor CBD 40–55 lb/ft³ for NiMo/CoMo HDS catalysts.
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© 2026 Inflection Point Engineering, LLC. All rights reserved.