辽宁石油化工大学学报 ›› 2026, Vol. 46 ›› Issue (3): 10-16.DOI: 10.12422/j.issn.1672-6952.2026.03.002

• 化学与化学工程 • 上一篇    下一篇

Pt前驱体对PtSn/Al2O3催化剂丙烷脱氢性能的调控

王淑琪1(), 田凡2, 万海1, 曹松3, 路启航1, 赵明明1, 张海娟1()   

  1. 1.辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
    2.辽宁石化职业技术学院 应用化学系,辽宁 锦州 121000
    3.中国石油庆阳石化公司,甘肃 庆阳 745002
  • 收稿日期:2025-06-29 修回日期:2025-08-11 出版日期:2026-06-25 发布日期:2026-06-10
  • 通讯作者: 张海娟
  • 作者简介:王淑琪(2001-),女,硕士研究生,从事轻烃综合利用方面的研究;E⁃mail:wangshuqi1027@126.com
  • 基金资助:
    辽宁省教育厅项目(JYTMS20231438)

Effect of Different Precursor PtSn/Al2O3 Catalysts on Propane Dehydrogenation

Shuqi WANG1(), Fan TIAN2, Hai WAN1, Song CAO3, Qihang LU1, Mingming ZHAO1, Haijuan ZHANG1()   

  1. 1.School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
    2.Department of Applied Chemistry,Liaoning Petrochemical College,Jinzhou Liaoning 121000,China
    3.PetroChina Qingyang Petrochemical Company,Qingyang Gansu 745002,China
  • Received:2025-06-29 Revised:2025-08-11 Published:2026-06-25 Online:2026-06-10
  • Contact: Haijuan ZHANG

摘要:

PtSn/Al2O3催化剂的活性相对丙烷脱氢催化剂的活性和稳定性有较大的影响。针对催化剂活性组分Pt易迁移、团聚,难以保持高度分散等问题,通过改变活性组分Pt的前驱体来调控催化剂的活性相,考察了其对丙烷脱氢性能的影响;采用TEM、H2?TPR、TG和Raman等手段,对催化剂活性相和抗积炭性能进行了表征分析。结果表明,在丙烷转化率相近的条件下,丙烯的选择性从86.96%提升至93.92%,同时副产物甲烷的生成量显著降低;以八乙基卟啉铂为前驱体制备的催化剂,其活性相尺寸较小且分散性较佳;以八乙基卟啉铂作为前驱体,可增强Pt与载体之间的相互作用力,显著提高活性相的稳定性,有效改善催化剂的抗结焦性能,使积碳量明显降低。

关键词: PtSn/Al2O3催化剂, 丙烷脱氢, 活性相, 前驱体

Abstract:

The activity of PtSn/Al2O3 catalyst has a significant impact on the activity and stability of propane dehydrogenation catalysts. To address the issues of easy migration and agglomeration of the active component Pt, which make it difficult to maintain high dispersion, the active phase of the catalyst was regulated by changing the precursor of the active component Pt, and its effect on the propane dehydrogenation performance was investigated. Characterization and analysis of the active phase and carbon deposition resistance of the catalyst were carried out using TEM, H2?TPR, TG, and Raman techniques. The results showed that under conditions with similar propane conversion rates, the selectivity of propylene increased from 86.96% to 93.92%, while the production of by?product methane significantly decreased. The catalyst prepared using octaethylporphyrin platinum as the precursor had a smaller active phase size and better dispersion. Using octaethylporphyrin platinum as the precursor can enhance the interaction between Pt and the support, significantly improve the stability of the active phase, effectively improve the catalyst's resistance to coking, and significantly reduce the amount of carbon deposition.

Key words: PtSn/Al2O3 catalyst, Propane dehydrogenation, Active phase, Precursors

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引用本文

王淑琪, 田凡, 万海, 曹松, 路启航, 赵明明, 张海娟. Pt前驱体对PtSn/Al2O3催化剂丙烷脱氢性能的调控[J]. 辽宁石油化工大学学报, 2026, 46(3): 10-16.

Shuqi WANG, Fan TIAN, Hai WAN, Song CAO, Qihang LU, Mingming ZHAO, Haijuan ZHANG. Effect of Different Precursor PtSn/Al2O3 Catalysts on Propane Dehydrogenation[J]. Journal of Liaoning Petrochemical University, 2026, 46(3): 10-16.

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链接本文: https://journal.lnpu.edu.cn/CN/10.12422/j.issn.1672-6952.2026.03.002

               https://journal.lnpu.edu.cn/CN/Y2026/V46/I3/10