柴油高效清洁化关键技术与应用

KEY TECHNOLOGIES FOR EFFICIENT CLEAN DIESEL PRODUCTION AND COMMERCIAL APPLICATIONS

面对柴油低硫、低芳烃双重质量要求的挑战,基于对柴油加氢催化剂失活规律以及加氢脱硫、芳烃饱和反应过程化学的深入认识,通过发明高性能活性相构建技术和高分散活性相稳定技术创新了柴油加氢催化剂制备技术,开发了高活性、高稳定性柴油加氢催化剂;同时开发了定向强化目标反应的RTS工艺,解决了工业装置难以长周期兼顾超深度脱硫和多环芳烃深度饱和的难题。通过在催化剂制备技术和柴油加氢工艺方面的创新,形成了柴油高效清洁化关键技术,可低成本、高效率和长周期稳定生产满足国Ⅴ国Ⅵ标准要求的柴油产品。目前,该关键技术已成功应用于36套工业装置,总加工能力超过50 Mt/a,为我国油品质量快速升级提供了技术支撑。

Faced with challenges from the national dual quality requirements for low-sulfur and low-aromatics diesel,based on the in-depth understanding of the deactivation mechanism of diesel hydroprocessing catalysts together with the reaction chemistry of hydrodesulfurization and hydrodearomatization,the new catalyst preparation technology was developed by inventing the assembly technology of high-performance active phase and the stabilization technology of well-dispersion active phase.Two highly-active and well-stable hydrogenation catalysts were developed with above preparation technology,along with the RTS(Remove Trace Sulfur)process invention,which aims at directionally strengthening the targeted reactions,and the problem for industrial units to achieve ultra-deep hydrodesulfurization,deep hydrodeacromatization and long operation cycle simultaneously was solved.Innovations in both catalyst and process brought the formation of key technologies for efficient clean diesel production,which can realize the long term stable production of China Ⅴ China Ⅵ standard diesel with low-cost,high-efficiency.Until now,these technologies have been successfully applied in 36 sets of commercial units with a total processing capacity of more than 50 Mt a,providing technical supports for the rapid upgrading of China’s fuel oil quality.