Impact of Fluids Distribution and Separation Systems on the Fluid Dynamics of a Resid Hydroprocessor

流体分配和分离系统对渣油加氢处理器流体动力学的影响

• 批准号: 514585-2017
• 负责人: Macchi, Arturo
• 金额: $ 3.32万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=695456
• 关键词: Impact; Fluids; Distribution; Separation; Systems

The LC-FinerSM, a heavy oil hydroprocessor, is used by Syncrude Canada Ltd to upgrade Canadian bitumen to synthetic crude oil via catalytic hydrogenation. The LC-FinerSM geometry, in particular the entrance (gas-liquid distributor) and exit (liquid recycle pan), affects the reactor performance. An even spatial distribution of the fluids is essential for proper hydrogenation and to limit the formation of coke which, by settling at bottom of the reactor and detrimentally affecting the fluids distribution, can become self-propagating. The fluids distribution system also influences bubble formation, which in turn affects bed hydrodynamics and transport phenomena. Moreover, since bubbles do not readily coalesce in the bed, the original bubble size distribution likely impacts phase separation in the recycle pan, and gas entrained with the recycled liquid increases the gas flow through the distribution system resulting in greater bed gas holdups at the expense of the liquid holdup and ultimately product yield. Moreover, greater yields lead to better process energy efficiencies and thus reduced impact on the environment (e.g., greenhouse gas emissions). Optimization of economic return and environmental impact are central to the successful development of the Canadian oil sands industry, which will lead the growth in crude oil supply from 4.0 million barrels/day in 2015 to an estimated 5.5 million barrels/day in 2030. This research project will have both multiphase computational fluid dynamics and experimental campaigns, leveraged by existing unique equipment and specialized instrumentation. Enhancements in reactor performance, via changes in reactor internal geometry and operating conditions that increase the liquid holdup and run time, will be proposed. Graduate and undergraduate students will partake in operation of high pressure equipment at the pilot scale, mathematical modeling and communication/interaction with an industrial partner for complete and comprehensive training.

加拿大辛克鲁德有限公司使用LC-FinerSM重油加氢处理器将加拿大沥青升级到 催化加氢合成原油。LC-FinerSM几何结构，特别是入口处 气液分配器(气液分配器)和出口(液体回收盘)直接影响反应器的性能。均匀的空间 流体的分布对于适当的加氢和限制焦炭的形成是必不可少的，通过 在反应器底部沉淀，并不利地影响流体分布，可能会变成 自我传播。流体分配系统也会影响气泡的形成，进而影响床层。 流体力学和运输现象。此外，由于气泡不容易在床上聚合，因此 原始气泡尺寸分布可能会影响循环盘中的相分离，以及携带有 回收的液体增加了通过分配系统的气体流量，导致在 耗费液体滞留率和最终产品产量。此外，更高的产量会带来更好的工艺 提高能源效率，从而减少对环境的影响(例如温室气体排放)。 优化经济回报和对环境的影响是成功发展 加拿大油砂行业，这将引领原油供应从#年的400万桶/天增长 2015年降至2030年的550万桶/日。 这个研究项目将有多相计算流体力学和实验活动， 利用现有独特的设备和专门的仪器。反应堆中的改进 性能，通过改变反应器内部几何结构和操作条件来增加液含率 和运行时间，将被提议。研究生和本科生将参与高压手术 试验规模的设备、数学建模以及与工业合作伙伴的交流/互动 进行完整和全面的培训。