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拟薄水铝石高纯制备工艺及炼油催化应用探究
The preparation technology of high-purity pseudoboehmite and its research progress and application in the field of refinery catalysis
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- DOI:
- 作者:
- 刘晓艺，魏媛媛，尹馨蕊，温广明
Liu Xiaoyi, Wei Yuanyuan, Yin Xinrui, Wen Guangming
- 作者单位:
- 中国石油石油化工研究院大庆化工研究中心
PetroChina Petrochemical Research Institute Daqing Chemical Engineering Research Center
- 关键词:
- 高纯拟薄水铝石；制备技术；炼油化工；催化剂载体
High purity pseudo-boehmite; preparation technology; refining and chemical industry; catalyst carrier
- 摘要:
- 双碳目标下，我国炼油化工产业向清洁化、高效化转型升级，对加氢催化技术提出更高要求。拟薄水铝石作为炼油加氢催化剂的核心载体及催化裂化（FCC）催化剂的关键粘结剂，其高纯特性直接决定催化剂性能、炼油工艺效率与运行稳定性。文中明确了炼油用高纯拟薄水铝石在纯度、孔结构、胶溶性能、热与水热稳定性 4大核心指标要求，阐明了关键杂质对催化剂的毒害失活机制。系统梳理中和沉淀法、醇铝水解法、等主流制备技术的研究进展，对比各技术的产品性能、生产成本、规模化难度及炼油场景适配性，并介绍新型绿色制备技术的发展潜力。同时探讨制备过程中孔结构定向调控、杂质深度脱除、性能强化的核心机制，总结其在加氢处理、加氢裂化、催化裂化等核心炼油场景的应用成效。最后分析了当前国内高端技术垄断、高端产品进口依赖、性能与成本难以兼顾的产业瓶颈，展望绿色低成本、定制化、智能化、国产化的未来发展方向，为高端拟薄水铝石国产化研发与工业化应用提供理论参考。Under the dual carbon target, China's refining and chemical industry is transforming and upgrading to clean and effi⁃cient, which puts forward higher requirements for hydrogenation catalytic technology. Pseudo-boehmite is the core carrier of refin⁃ing hydrogenation catalyst and the key binder of catalytic cracking (FCC) catalyst. Its high purity characteristics directly determinethe catalyst performance, refining process efficiency and operation stability. In this paper, the four core indexes of purity, pore struc⁃ture, peptization performance, thermal and hydrothermal stability of high-purity pseudo-boehmite for refining were clarified, andthe mechanism of poisoning and deactivation of key impurities to the catalyst was clarified. The research progress of mainstreampreparation technologies such as neutralization precipitation method, alcohol aluminum hydrolysis method and so on is systematical⁃ly reviewed. The product performance, production cost, scale difficulty and refining scenario adaptability of each technology arecompared, and the development potential of new green preparation technology is introduced. At the same time, the core mechanismsof directional regulation of pore structure, deep removal of impurities and performance enhancement in the preparation process werediscussed, and its application effects in core refining scenarios such as hydrotreating, hydrocracking and catalytic cracking weresummarized. Finally, it analyzes the current domestic high-end technology monopoly, high-end product import dependence, perfor⁃mance and cost are difficult to take into account the industrial bottleneck, and looks forward to the future development direction ofgreen low-cost, customization, intelligence and localization, which provides a theoretical reference for the localization research andindustrial application of high-end pseudo-boehmite.