Department of Chemical Engineering, Universidad Autónoma de Madrid, 28049, Madrid, Spain.
Department of Chemical Engineering, University of the Basque Country, 48080, Bilbao, Spain.
Chemosphere. 2021 Oct;281:130885. doi: 10.1016/j.chemosphere.2021.130885. Epub 2021 May 15.
This work investigates H production through aqueous phase reforming (APR) of synthetic brewery wastewater in a continuous fixed bed reactor with Pt and PtRe (3 wt %) catalysts supported on activated carbon. The influence of weight hourly space velocity (WHSV) and superficial Ar gas flow velocity (V) was assessed for the sake of optimisation, while reaction temperature and pressure were maintained at 225 °C and 28 bar, respectively. H production was found to be higher using the PtRe catalyst at the lowest WHSV (0.03 h) and highest V (0.8 cm s). The comparison of the maximum H production obtained in this work (27.9 μmol min) with other treatment processes shows the potential of the application of APR process for H production from brewery wastewater. Despite the different reaction conditions tested, the catalysts showed deactivation with time on stream, which was related to the formation of solid deposits on the surface of the catalysts. Therefore, future research should be related to the development of more stable catalysts, strategies that avoid deactivation by coking and regeneration processes.
本工作研究了通过在连续固定床反应器中用水相重整（APR）对合成啤酒厂废水进行 H 生产，该反应器中负载在活性炭上的 Pt 和 PtRe（3wt%）催化剂。为了优化，评估了重量时空速度（WHSV）和表面 Ar 气流速（V）的影响，而反应温度和压力分别保持在 225°C 和 28 巴。在最低 WHSV（0.03 h）和最高 V（0.8 cm s）下，使用 PtRe 催化剂时，H 生产更高。与其他处理工艺相比，本工作中获得的最大 H 产量（27.9 μmol min）表明 APR 工艺从啤酒厂废水中生产 H 的应用具有潜力。尽管测试了不同的反应条件，但催化剂随时间推移表现出失活，这与催化剂表面上固体沉积物的形成有关。因此，未来的研究应涉及开发更稳定的催化剂、避免积碳和再生过程失活的策略。
