摘 要
催化重整技术在现代石油炼制和化工生产中具有重要地位，然而硫化物的存在会对催化剂活性、选择性和稳定性造成显著影响，甚至导致催化剂中毒失效。本研究旨在深入探讨硫化物对催化重整过程的影响机制，并开发高效脱除硫化物的技术方案。通过理论分析与实验研究相结合的方法，首先系统考察了不同种类硫化物（如硫醇、硫醚、噻吩等）在重整反应条件下的化学行为及其对催化剂表面结构的破坏作用；其次，基于吸附、氧化和加氢脱硫等原理，设计并优化了一种新型多功能脱硫催化剂，该催化剂具有高硫容、强抗毒性和良好的再生性能。实验结果表明，硫化物不仅会占据催化剂活性位点，还会引发金属颗粒烧结和载体酸性位减少等问题，从而显著降低重整反应效率。采用所开发的脱硫技术后，原料中的硫含量可降至1 ppm以下，且催化剂寿命延长约30%。本研究的创新点在于提出了硫化物与催化剂相互作用的微观机制模型，并成功实现了脱硫技术的工业化应用，为提升催化重整工艺的经济性和环保性提供了重要技术支持。
关键词：催化重整；硫化物影响机制；多功能脱硫催化剂；加氢脱硫；催化剂寿命延长
Abstract
Catalytic reforming technology plays a crucial role in modern petroleum refining and chemical production; however, the presence of sulfides can significantly affect the activity, selectivity, and stability of catalysts, potentially leading to catalyst poisoning and deactivation. This study aims to comprehensively investigate the impact mechanisms of sulfides on the catalytic reforming process and develop an efficient desulfurization technology. By integrating theoretical analysis with experimental research, the chemical behaviors of various types of sulfides (such as thiols, thioethers, and thiophenes) under reforming conditions were systematically examined, along with their destructive effects on the surface structure of catalysts. Furthermore, based on principles such as adsorption, oxidation, and hydrodesulfurization, a novel multifunctional desulfurization catalyst was designed and optimized, characterized by high sulfur capacity, strong anti-poisoning properties, and excellent regenerability. The experimental results indicate that sulfides not only occupy active sites of the catalyst but also cause issues such as me tal particle sintering and a reduction in acidic sites of the support, thereby substantially decreasing the efficiency of the reforming reaction. After applying the developed desulfurization technology, the sulfur content in feedstock can be reduced to below 1 ppm, with the catalyst lifespan extended by approximately 30%. The innovation of this study lies in proposing a microscopic mechanism model for the interaction between sulfides and catalysts and successfully achieving industrial application of the desulfurization technology, providing significant technical support for enhancing the economic and environmental performance of catalytic reforming processes..
Key Words：Catalytic Reforming；Sulfide Impact Mechanism；Multi-Functional Desulfurization Catalyst；Hydrogenation Desulfurization；Catalyst Life Extension
目 录
摘 要 I
Abstract II
第1章 绪论 1
1.1 催化重整过程中的硫化物问题 1
1.2 研究背景与意义分析 1
1.3 国内外研究现状综述 2
1.4 本文研究方法与技术路线 2
第2章 硫化物对催化重整的影响机制 3
2.1 催化剂中毒机理分析 3
2.2 硫化物对反应性能的影响 3
2.3 不同类型硫化物的作用差异 4
2.4 温度与压力对硫化物影响的调节 4
2.5 实验验证与数据分析 5
第3章 硫化物脱除技术的研究进展 6
3.1 吸附法脱硫技术原理 6
3.2 化学转化法脱硫技术分析 6
3.3 生物脱硫技术的应用前景 7
3.4 新型脱硫技术的开发与优化 7
3.5 脱硫技术经济性评估 8
第4章 硫化物控制策略与工艺优化 9
4.1 工艺流程中的硫化物控制点 9
4.2 预处理技术在脱硫中的应用 9
4.3 催化剂改性以增强抗硫能力 10
4.4 工业案例分析与经验总结 10
4.5 未来发展方向与建议 11
结 论 12
参考文献 13
致 谢 14
催化重整技术在现代石油炼制和化工生产中具有重要地位，然而硫化物的存在会对催化剂活性、选择性和稳定性造成显著影响，甚至导致催化剂中毒失效。本研究旨在深入探讨硫化物对催化重整过程的影响机制，并开发高效脱除硫化物的技术方案。通过理论分析与实验研究相结合的方法，首先系统考察了不同种类硫化物（如硫醇、硫醚、噻吩等）在重整反应条件下的化学行为及其对催化剂表面结构的破坏作用；其次，基于吸附、氧化和加氢脱硫等原理，设计并优化了一种新型多功能脱硫催化剂，该催化剂具有高硫容、强抗毒性和良好的再生性能。实验结果表明，硫化物不仅会占据催化剂活性位点，还会引发金属颗粒烧结和载体酸性位减少等问题，从而显著降低重整反应效率。采用所开发的脱硫技术后，原料中的硫含量可降至1 ppm以下，且催化剂寿命延长约30%。本研究的创新点在于提出了硫化物与催化剂相互作用的微观机制模型，并成功实现了脱硫技术的工业化应用，为提升催化重整工艺的经济性和环保性提供了重要技术支持。
关键词：催化重整；硫化物影响机制；多功能脱硫催化剂；加氢脱硫；催化剂寿命延长
Abstract
Catalytic reforming technology plays a crucial role in modern petroleum refining and chemical production; however, the presence of sulfides can significantly affect the activity, selectivity, and stability of catalysts, potentially leading to catalyst poisoning and deactivation. This study aims to comprehensively investigate the impact mechanisms of sulfides on the catalytic reforming process and develop an efficient desulfurization technology. By integrating theoretical analysis with experimental research, the chemical behaviors of various types of sulfides (such as thiols, thioethers, and thiophenes) under reforming conditions were systematically examined, along with their destructive effects on the surface structure of catalysts. Furthermore, based on principles such as adsorption, oxidation, and hydrodesulfurization, a novel multifunctional desulfurization catalyst was designed and optimized, characterized by high sulfur capacity, strong anti-poisoning properties, and excellent regenerability. The experimental results indicate that sulfides not only occupy active sites of the catalyst but also cause issues such as me tal particle sintering and a reduction in acidic sites of the support, thereby substantially decreasing the efficiency of the reforming reaction. After applying the developed desulfurization technology, the sulfur content in feedstock can be reduced to below 1 ppm, with the catalyst lifespan extended by approximately 30%. The innovation of this study lies in proposing a microscopic mechanism model for the interaction between sulfides and catalysts and successfully achieving industrial application of the desulfurization technology, providing significant technical support for enhancing the economic and environmental performance of catalytic reforming processes..
Key Words：Catalytic Reforming；Sulfide Impact Mechanism；Multi-Functional Desulfurization Catalyst；Hydrogenation Desulfurization；Catalyst Life Extension
目 录
摘 要 I
Abstract II
第1章 绪论 1
1.1 催化重整过程中的硫化物问题 1
1.2 研究背景与意义分析 1
1.3 国内外研究现状综述 2
1.4 本文研究方法与技术路线 2
第2章 硫化物对催化重整的影响机制 3
2.1 催化剂中毒机理分析 3
2.2 硫化物对反应性能的影响 3
2.3 不同类型硫化物的作用差异 4
2.4 温度与压力对硫化物影响的调节 4
2.5 实验验证与数据分析 5
第3章 硫化物脱除技术的研究进展 6
3.1 吸附法脱硫技术原理 6
3.2 化学转化法脱硫技术分析 6
3.3 生物脱硫技术的应用前景 7
3.4 新型脱硫技术的开发与优化 7
3.5 脱硫技术经济性评估 8
第4章 硫化物控制策略与工艺优化 9
4.1 工艺流程中的硫化物控制点 9
4.2 预处理技术在脱硫中的应用 9
4.3 催化剂改性以增强抗硫能力 10
4.4 工业案例分析与经验总结 10
4.5 未来发展方向与建议 11
结 论 12
参考文献 13
致 谢 14
