Computational Proof-of-Concept for Converting FCC Decant Oil to Hard Carbon Anodes for Sodium-Ion Batteries via Sulfur-Crosslinking Mechanism

Computational proof-of-concept demonstrating the feasibility of converting fluid catalytic cracking (FCC) decant oil to battery-grade hard carbon anodes for sodium-ion batteries. The package contains:- FCC_Hard_Carbon_Paper_Zenodo.docx — Manuscript- FCC_Study_v7_verified.py — Python simulation code (reproduces all results)- DoE_200.csv — 200-condition Latin Hypercube experimental design- All_Tables.xlsx — Complete results tables- Fig1_Goldilocks.png, Fig2_Sensitivity.png — Figures- README.md — Documentation Key findings:1. Hindrance Index = 52.7 (>> 2.0 threshold) — sulfur crosslinks prevent graphitization2. Goldilocks Window = 85.5% of parameter space yields d002 = 0.37–0.40 nm3. Benchmark MAE = 1.26% (n=4) against literature4. Temperature dominance |r| = 0.8965. Ten lab-ready conditions identified for experimental validation Requirements: Python 3.8+, numpy, pandas, scipy, matplotlib