Thermal oxidizer: VOC-laden waste-gas incineration

A dilute VOC-laden air stream preheats and combusts completely at typical thermal-oxidizer operating temperature (~1100 K / 827degC, in the 750-870degC range these units commonly run at for reliable VOC destruction), destroying toluene (a standard VOC surrogate) to CO2 + H2O (C7H8 + 9 O2 -> 7 CO2 + 4 H2O, exactly mass-balanced) at 99.9% destruction-and-removal efficiency (DRE) -- the real regulatory benchmark figure widely cited for thermal oxidizers/incinerators (e.g. the hazardous-waste-incinerator DRE standard), not a fabricated number. This is generic combustion-based air-pollution-control technology, not Linde-proprietary IP -- built the same way fired_heater.py already models fuel-gas combustion, applied here to a waste-destruction duty instead of a process-heating duty. Honesty note: no NOx formation chemistry is modeled (matching fired_heater's own disclosed bounded scope), and heat recovery (regenerative/recuperative preheat of the incoming waste-gas stream, standard on real thermal oxidizers to cut fuel demand) isn't modeled -- the preheat duty here is a plain utility heater, not a heat-integrated exchanger.