Reaction and mass transfer in model coke agglomerates

模型焦团块中的反应和传质

• 批准号: 453724-2013
• 负责人: Gray, Murray
• 金额: $ 1.86万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=541661
• 关键词: Reaction; mass; transfer; model; coke

Fluid coking is an important process for upgrading of oilsands bitumen, wherein liquid feed is heated and cracked by contacting it with hot particles. Spraying of liquid into a bed of particles forms wet agglomerates of solid and liquid, which gradually react and break up in the reactor. The proposed research would investigate the relationship between mass transfer and coke yield in model coke agglomerates using Curie-point heating of scaled physical models. These experiments will define the role of liquid film thickness in coke agglomerates at high liquid saturation, the role of boiling in expanding agglomerates, and the role of feed recycle in its reactivity and coke yield. The experiments would focus on measurement of coke yield and direct observation of liquid and solid behaviour in Curie-point reactors. The project will involve collaboration with Karlsruhe Institute of Technology to help fabricate a range of physical models using Curie-point alloy to support the study.

流化焦化是油砂沥青改质的重要方法，其中液体进料通过与热颗粒接触而被加热和裂化。将液体喷射到颗粒床中形成固体和液体的湿团聚体，其在反应器中逐渐反应并破碎。本研究将利用比例物理模型的居里点加热来研究模型焦炭团块中传质与焦炭产率之间的关系。这些实验将确定在高液体饱和度下焦炭聚集体中液膜厚度的作用，沸腾在膨胀聚集体中的作用，以及进料再循环在其反应性和焦炭产率中的作用。这些实验将侧重于测量焦炭产率和直接观察居里点反应器中的液体和固体行为。该项目将与卡尔斯鲁厄理工学院合作，帮助制造一系列使用居里点合金的物理模型，以支持这项研究。