Natural gas Combined Heat and Power (CHP) cogenerators produce low-cost electricity, hot water, and massive volumes of carbon dioxide. However, raw engine exhaust contains highly phytotoxic nitric oxide ($NO_x > 500\text{ mg/Nm}^3$) and ethylene ($C_2H_4$). Passing flue gases through a Selective Catalytic Reduction (SCR) converter with precision urea dosing reduces toxic NOx to below $5\text{ mg/Nm}^3$, producing 100% food-grade CO₂.
1. The Stoichiometric Catalytic Reaction
4NO + 4NH_3 + O_2 \xrightarrow{V_2O_5-TiO_2} 4N_2 + 6H_2O
A $2.0\text{ MW}$ gas engine yields over $960\text{ kg/h}$ of pure CO₂, satisfying the daytime assimilation demand of up to $15\text{ hectares}$ of high-wire tomatoes.
2. Interactive SCR Dosing Calculator
Calculate your urea dosing rate and pure CO₂ output using our online tool: