脱乙基与乙苯转化型异构化催化剂的对比研究
Comparative Study of Deethylation and Ethylbenzene-Conversion Type Isomerization Catalysts
摘要: 本文对比分析脱乙基型与乙苯转化型两类二甲苯异构化催化剂的反应机理、性能及应用场景。研究发现，脱乙基型催化剂SKI-320乙苯转化能力强，适配高空速、低氢烃比工况；乙苯转化型催化剂RIC-300原料利用率高，能有效控制C8芳烃损失。前者适用于乙苯含量高的原料处理，后者更适配对二甲苯收率要求高的装置。催化剂选择需综合原料特性、工艺要求等因素，未来研究将围绕探究反应机理、开发新型载体、寻找低成本合成路线展开，推动芳烃技术发展。
Abstract: This paper conducts a comparative analysis of the reaction mechanisms, performance, and application scenarios of deethylation and ethylbenzene-conversion xylene isomerization catalysts. The study finds that the deethylation catalyst SKI-320 exhibits strong ethylbenzene conversion capability and is suitable for operation under high space velocity and low hydrogen-to-hydrocarbon ratio conditions; while the ethylbenzene-conversion catalyst RIC-300 offers high raw material utilization and effectively controls C8 aromatic loss. The former is more suitable for feeds with high ethylbenzene content, while the latter is preferable for units requiring high p-xylene yield. Catalyst selection should consider feed characteristics and process requirements. Future research will focus on exploring reaction mechanisms, developing new carriers, and finding low-cost synthesis routes to advance aromatic technology development.
文章引用：张学华. 脱乙基与乙苯转化型异构化催化剂的对比研究[J]. 有机化学研究, 2026, 14(2): 269-276. https://doi.org/10.12677/jocr.2026.142024

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