A multi-source mixed-frequency information fusion framework based on spatial-temporal graph attention network for anomaly detection of catalyst loss in FCC regenerators

Chunmeng Zhu, Nan Liu, Ludong Ji, Yunpeng Zhao, Xiaogang Shi, Xingying Lan

Chinese Journal of Chemical Engineering . 2025, (8): 47 -59 . DOI: 10.1016/j.cjche.2025.02.025