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: $ 3.41万
• 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: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=689408
• 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 tosynthetic 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 spatialdistribution of the fluids is essential for proper hydrogenation and to limit the formation of coke which, bysettling at bottom of the reactor and detrimentally affecting the fluids distribution, can becomeself-propagating. The fluids distribution system also influences bubble formation, which in turn affects bedhydrodynamics and transport phenomena. Moreover, since bubbles do not readily coalesce in the bed, theoriginal bubble size distribution likely impacts phase separation in the recycle pan, and gas entrained with therecycled liquid increases the gas flow through the distribution system resulting in greater bed gas holdups at theexpense of the liquid holdup and ultimately product yield. Moreover, greater yields lead to better processenergy 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 theCanadian oil sands industry, which will lead the growth in crude oil supply from 4.0 million barrels/day in2015 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 reactorperformance, via changes in reactor internal geometry and operating conditions that increase the liquid holdupand run time, will be proposed. Graduate and undergraduate students will partake in operation of high pressureequipment at the pilot scale, mathematical modeling and communication/interaction with an industrial partnerfor complete and comprehensive training.

Syncrude Canada Ltd使用LC-Finersm，一种重油氢处理器，通过催化氢化升级加拿大沥青tosyntheticategrude原油。 LC-Finersm几何形状，尤其是入口（气液分配器）和出口（液体回收锅），会影响反应器性能。均匀的流体分配对于适当的氢化至关重要，并限制了可乐的形成，而可口可乐的形成，在反应堆的底部绕过，并不利地影响流体分布，可能会变得越来越多。流体分布系统还影响了气泡的形成，这反过来影响底水动力学和转运现象。此外，由于气泡在床上不容易聚集，因此理论气泡尺寸分布可能会影响回收锅中的相位分​​离，而带有循环液体液体的气体会增加通过分配系统的气体流动，从而在液体持有的Exprense上产生更大的床体气体储存，并产生最终产物的产量。此外，较高的产量会提高过程能力效率，从而降低对环境的影响（例如温室气体排放）。经济回报和环境影响的优化对于成功发展ecanadian石油砂行业的发展至关重要动态和实验活动，由现有的独特设备和专业仪器利用。将提出通过反应器内部几何形状和增加液体持有时间和运行时间的操作条件的变化来增强反应性的增强。研究生和本科生将在试点规模，数学建模和沟通/互动中与工业合作伙伴进行全面和全面的培训进行高压设备。