蒽醌法制过氧化氢中降解物的生成及再生研究进展

Advances in formation and regeneration of degradation products during anthraquinone process for hydrogen peroxide production

蒽醌法是工业上生产过氧化氢(H_2O_2)的主流方法,理论上蒽醌仅起氢载体的作用而不被消耗,但实际生产中会发生多种形式的降解,生成众多降解物,对降解物进行再生是蒽醌法工艺的重点。蒽醌法工艺中降解物的生成路径可分为加氢降解和氧化降解,实际生产中普遍采用碱性活性氧化铝(俗称白土)作为再生剂;近年来新型降解物再生剂成为了研究的热点,在比较了传统再生剂白土和新型再生剂的基础上,指出引入固体碱作为活性组分的新型再生剂具有再生效率高和使用寿命长的优点,是新型再生剂的发展方向;建议从分子水平设计再生剂或进行多元化修饰再生剂,提高其再生效率并扩大其适用性。

Anthraquinone process is the overwhelming way for the production of hydrogen peroxide （ H2O2 ） in industry. An- thraquinone is not consumed in theory, only acting as the carrier of hydrogen, however, various degradation pathways are present and different degradation products are formed during the process. The regeneration of degradation products plays an important role in the anthraquinone process. The formation pathways of degradation products in anthraquinone process comprises hydrogenation degradation and oxidation degradation, and basic activated alumina （clay） is commonly used as the regenerate in practical pro- duction. The research has been focused on the novel regenerants in present years. Based on the comparison between traditional clay regenerant and novel regenerants, it is concluded that novel regenerants with solid base as the active sites would be the de- velopment trend of novel regenerants due to the advantages of higher regeneration efficiency and longer service life. It is suggested that the molecular design and multiple modification of regenerants should be enhanced to improve the regeneration efficiency and expand the applicability.