Catalytic Supercritical Water Oxidation

小行星9317618 该项目考虑了在水的临界点附近的温度下，在水介质中，非均相催化剂对含氮有机物的氧化的影响。 候选催化剂包括氧化钒、氧化铜、二氧化铈/氧化镁、钯和铂。 考察了催化剂在超临界水中的稳定性及其对氨、吡啶、吡咯、甲基吡咯、苯胺、苯甲腈等含氮化合物的氧化反应。 所选系统的非均相和均相反应速率进行建模，并确定任何部分氧化产物。 结果描述在一组一致的反应途径。 超临界水氧化已被证明是一种有效的方法来销毁许多危险化学品，但问题仍然存在，特别是在可能产生的部分氧化产物。 这项工作探讨了使用催化剂来彻底销毁纤维、绝缘材料、农药、制药和爆炸物工业产生的废物。 ***

9317618 Abraham This project considers the effects of a heterogeneous catalyst on the oxidation of organic species containing nitrogen in an aqueous medium at temperatures near the critical point of water. Candidate catalysts include vanadia, cupric oxide, ceria/magnesia, palladium, and platinum. The stability of the catalyst in supercritical water and its effects on the oxidation of nitrogen-containing species, such as ammonia, pyridine, pyrrole, methylpyrrole, aniline, or benzonitrile, are observed. The heterogeneous and homogeneous reaction rates for the chosen system are modelled and any partial oxidation products are identified. The results are described in terms of a consistent set of reaction pathways. Supercritical water oxidation has been shown to be an effective method to destroy many hazardous chemicals, but issues remain, particularly in the possible production of partial oxidation products. This work explores the use of a catalyst to issue complete destruction for wastes of the type produced by the fiber, insulation, pesticide, pharmaceutical, and explosives industries. ***