工业S Zorb吸附剂中镍物种状态对烯烃饱和性能的影响机制研究

石油炼制与化工 ›› 2026, Vol. 57 ›› Issue (11): 58-64.

工业S Zorb吸附剂中镍物种状态对烯烃饱和性能的影响机制研究

宋烨¹,吕卓岩¹,王杰²,郭瑶庆¹,朱凯¹,位亚辉³,井争平²,徐莉¹

1. 中石化石油化工科学研究院有限公司
2. 陕西延长石油（集团）有限责任公司永坪炼油厂
3. 中国石化金陵分公司

收稿日期:2026-04-10 修回日期:2026-06-18 出版日期:2026-11-12 发布日期:2026-10-19
通讯作者: 徐莉 E-mail:xuli.ripp@sinopec.com
基金资助:
清洁汽油生产技术开发

INFLUENCE OF NICKEL SPECIES STATE ON OLEFIN SATURATION PERFORMANCE IN INDUSTRIAL S Zorb ADSORBENTS

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Received:2026-04-10 Revised:2026-06-18 Online:2026-11-12 Published:2026-10-19

摘要/Abstract

摘要： S Zorb吸附脱硫技术是实现催化裂化汽油超深度脱硫并保持辛烷值的关键技术，工业装置中吸附剂的烯烃饱和能力差异显著。从两套烯烃饱和能力存在显著差异的工业S Zorb装置中采集了待生剂与再生剂，利用X射线衍射、透射电子显微镜、氢气程序升温还原、X射线光电子能谱及热重-质谱联用等手段，解析了吸附剂的体相结构、微观形貌、表面化学状态、活性位点分布及积炭性质。结果表明：高性能吸附剂（JLDS/JLZS）的镍物种呈高度分散状态（平均粒径3~5 nm），与载体相互作用强，表面富含低配位边角位，能高效活化氢气，并形成易于氧化脱除的无序积炭；而低活性吸附剂（YPDS/YPZS）的镍物种则以大颗粒聚集态（平均粒径10~30 nm）存在，与载体相互作用弱，表面可能以低活性平台晶面为主，易生成高温难去除的石墨化积炭，导致其加氢活性低、再生困难。基于此构效关系，进一步揭示了工业装置中因剂耗控制不当可能引发的“性能下降→操作补偿→再生超温→结构破坏→性能下降”的非良性循环机制，为工业S Zorb吸附剂的性能诊断、寿命预测及通过优化剂耗等操作参数实现长周期稳定运行提供了理论指导。

关键词: S Zorb, 吸附脱硫, Ni/ZnO吸附剂, 烯烃饱和, 构效关系, 积炭

Abstract: Reactive adsorption desulfurization (S Zorb) is a key technology for ultra-deep desulfurization of FCC gasoline while preserving octane number. However, industrial adsorbents show significant differences in olefin saturation activity. In this study, spent and regenerated adsorbents from two industrial S Zorb units with distinct olefin saturation capacities were analyzed. Their structure, morphology, surface chemical states, active sites, and carbon deposition were characterized by XRD, TEM, H2-TPR, XPS, and TG-MS. The higher performance adsorbents (JLDS/JLZS) exhibit highly dispersed Ni species (3—5 nm) with strong metal-support interactions and abundant low-coordination sites, enabling efficient H2 activation and forming easily removable disordered carbon. In contrast, the low-activity adsorbents (YPDS/YPZS) contain aggregated Ni particles (10—30 nm) with weak interactions and mainly terrace sites, favoring the formation of graphitized carbon that is difficult to remove, thus leading to low hydrogenation activity and poor regeneration performance. Then a negative feedback loop in industrial operation could further formed: performance decline → operational compensation → excessive regeneration temperature → structural deterioration→ performance decline. This study provides a scientific basis for performance diagnosis, lifetime prediction, and long-term stable operation of S Zorb adsorbents via optimization of adsorbent consumption and other operating parameters.

Key words: S Zorb, adsorption desulfurization, Ni/ZnO adsorbent, olefin saturation, structure-activity relationship, coke

宋烨吕卓岩王杰郭瑶庆朱凯位亚辉井争平徐莉. 工业S Zorb吸附剂中镍物种状态对烯烃饱和性能的影响机制研究[J]. 石油炼制与化工, 2026, 57(11): 58-64.

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