常压滴流床反应器中氢氧直接合成双氧水工艺  

Direct Synthesis Process of Hydrogen Peroxide in a Trickle Bed Reactor under Atmospheric Pressure

作　　者：王士博 蒋管聪 杨赞洁 穆立文 陆小华 朱家华 WANG Shibo;JIANG Guancong;YANG Zanjie;MU Liwen;LU Xiaohua;ZHU Jiahua(State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemical Engineering,Nanjing Tech University,Nanjing 211816,China)

机构地区：[1]材料化学工程国家重点实验室,南京工业大学化工学院,江苏南京211816

出　　处：《化学反应工程与工艺》2022年第1期61-67,共7页Chemical Reaction Engineering and Technology

基　　金：国家自然科学基金(91934302,21978128);材料化学工程国家重点实验室基金(ZK202006)。

摘　　要：双氧水(H_(2)O_(2))作为一种典型的清洁高效氧化剂,将在未来化学工业的绿色化、高效化、安全化过程中起到重要作用,传统蒽醌法合成H_(2)O_(2)工艺污染大、能耗高,亟需开发安全高效的H_(2)O_(2)绿色生产工艺。据此开发了常压滴流床反应器用于氢氧直接合成H_(2)O_(2)工艺。基于商业钯/碳催化剂,系统地研究了常压条件下滴流床反应器中气相流量、氧氢比例、氮气浓度以及催化剂装填密度等因素对H_(2)O_(2)产量的影响,并对反应工艺参数进行优化,为连续、稳定、高效地直接合成H_(2)O_(2)绿色生产工艺提供有效参考。Hydrogen peroxide(H_(2)O_(2)),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 H_(2)O_(2),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 H_(2)O_(2).Here,a trickle bed reactor was adopted to continuously produce H_(2)O_(2) based on the catalytic synthesis of H_(2) and O_(2) under atmospheric pressure.The reaction parameters including Pd/C catalyst loading density,gas flow rate of reactants,volume ratio of O_(2) to H_(2) and inert gas N_(2) fraction in feed were systematically investigated and optimized to maximize the H_(2)O_(2) 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 H_(2)O_(2).

关 键 词：滴流床 双氧水 合成工艺 钯/碳催化剂 

分 类 号：TQ123.6[化学工程—无机化工]