常压滴流床反应器中氢氧直接合成双氧水工艺

Hydrogen peroxide (H₂O₂), a typical green and efficient oxidant, is expected to play an important role in future chemical industry towards green, efficient and safe processes. Anthraquinone oxidation (AO) has been commercialized to produce H₂O₂, but the AO process suffers from its complex procedure and environmental issues. Therefore, it is urgent to develop a safe, efficient and green process to produce H₂O₂. Here, a trickle bed reactor was adopted to continuously produce H₂O₂ based on the catalytic synthesis of H₂ and O₂ under atmospheric pressure. The reaction parameters including Pd/C catalyst loading density, gas flow rate of reactants, volume ratio of O₂ to H₂ and inert gas N₂ fraction in feed were systematically investigated and optimized to maximize the H₂O₂ production and minimize the safety risks. The work provides an effective reference for the continuous, stable and efficient green production process of direct synthesis of H₂O₂.