Capture and identification of coke precursors to elucidate the deactivation route of the methanol-to-olefin process over H-SAPO-34
Capture and identification of coke precursors to elucidate the deactivation route of the methanol-to-olefin process over H-SAPO-34
复制标题
捕获和鉴定焦炭前体以阐明 H-SAPO-34 甲醇制烯烃工艺的失活途径
DOI：
10.1039/d0cc02408b
复制
发表时间：
2020
影响因子：
4.9
通讯作者：
Liu Zhongmin
中科院分区：
文献类型：
--
作者：
Yu Bowen;Zhang Wenna;Wei Yingxu;Wu Xinqiang;Sun Tantan;Fan Benhan;Xu Shutao;Liu Zhongmin
借助GC-MS、热重分析（TG）和密度泛函理论（DFT）计算，揭示了整个甲醇制烯烃过程中保留物种的演变。精确的路线为保留的甲基苯甲基萘的转化提出了，基于三个可能的有机中间体的直接捕获，以解释催化剂失活过程。
The evolution of retained species during the whole methanol-to-olefins process was revealed with the aid of GC-MS, thermogravimetric analysis (TG) and density functional theory (DFT) calculations. Precise routes for the transformation of retained methylbenzenes to methylnaphthalenes were proposed, based on the direct capture of three possible organic intermediates, to explain the catalyst deactivation procedure.