Calculators

Fischer-Tropsch Mass Balance

Anderson-Schulz-Flory (ASF) carbon-number distribution, stoichiometric mass balance (CO + 2H₂ → [CH₂] + H₂O), and product yields grouped into Light Gas / Naphtha / Middle Distillate / Wax. Rebuilt from v3 — C30+ lump now correctly computes as remainder (1 − Σ W_n).

Method: ASF W_n = n·(1−α)²·αⁿ⁻¹ with C30+ computed as the remainder 1−Σ_1..30W_n (v3 fix; v2 duplicated C30 weight fraction, under-counting wax by ~15 pp at α=0.9). Stoichiometry assumes the idealized CO + 2H₂ → [CH₂] + H₂O with complete HC selectivity — side products (alcohols, acids, aldehydes) are not modeled. Typical α: Fe catalyst 0.70–0.80, Co catalyst 0.85–0.95. Higher α shifts the distribution toward heavier products.

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Fischer-Tropsch Mass Balance

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