Convert Pound-moles per hour to Kilomoles per second

Convert Pound-moles per hour (lb-mol/h) to Kilomoles per second (kmol/s) instantly and accurately.

Pound-moles per hour (lb-mol/h)
Kilomoles per second (kmol/s)

Conversion Formula

kmol/s = lb-mol/h × 0.0001259978806

About Pound-moles per hour

The pound-mole per hour (lb-mol/h) equals 453.59237/3600 ≈ 0.12600 mol/s, the standard molar flow unit in US chemical process engineering simulation (Aspen Plus, HYSYS, Pro/II). Distillation column feed rates, reactor effluent streams, and compressor suction flows are universally expressed in lb-mol/h in US petrochemical and refinery design. 1 lb-mol/h = 453.59237/3600 mol/s ≈ 0.12600 mol/s ≈ 0.4536 kmol/h.

About Kilomoles per second

The kilomole per second (kmol/s) equals 1 000 mol/s, characterising the very largest industrial chemical processes. A world-scale ammonia synthesis plant produces ≈3 kmol/s of NH₃; a large steam methane reformer converts natural gas at ≈10 kmol/s. It is the preferred unit in European process simulation when outputs are in the thousands of tonnes per day. 1 kmol/s = 1 000 mol/s = 3 600 kmol/h.

Quick Reference Table

Pound-moles per hour (lb-mol/h)Kilomoles per second (kmol/s)
1 lb-mol/h0.000125998 kmol/s
2 lb-mol/h0.000251996 kmol/s
5 lb-mol/h0.000629989 kmol/s
10 lb-mol/h0.00125998 kmol/s
25 lb-mol/h0.00314995 kmol/s
50 lb-mol/h0.00629989 kmol/s
100 lb-mol/h0.0125998 kmol/s

→ Full Flow Rate (Molar) Converter