Mixing and liquid-vapor equilibrium of dilbit-water-sand/clay slurries in the syncrude naphtha recovery unit

合成石脑油回收装置中稀释沥青-水-砂/粘土浆液的混合和液汽平衡

• 批准号: 515085-2017
• 负责人: DeLasa, Hugo
• 金额: $ 6.86万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=648838
• 关键词: Mixing; liquid; vapor; equilibrium; dilbit

The goal of the present study is to develop a new thermodynamic model for the simulation of the saturation**vapour pressure in Dilbit-water-sand/clay slurries, in proportions relevant to the NRU (Naphtha Recovery Unit)**and using actual Syncrude NRU Feed samples. Experiments will be developed using a Recat LV Cell, which**has been tested and implemented by Prof. de Lasa's team at the CREC(Chemical Reactor Engineering Centre)**-UWO (University of Western Ontario) laboratories. The Recat LV Cell allows the quantification of the vapour**pressure, as well as the identification of adequate mixing slurry conditions. In this respect, the proposed new**research under combined NSERC CRD and Syncrude Canada sponsorship will involve enhancing the Recat**LV Cell further. The patented CREC Optiprobes will be used for gas phase sampling as well as online**measurement of droplets and particle sizes. It is anticipated that the use of this strategy will provide critical**data for the identification of best mixing conditions and power input, for highly dispersed**Dilbit-water-sand/clay slurry phases and NRU feeds. Furthermore, a Computational Fluid Dynamic (CFD)**model will be developed for this test cell. The proposed CFD model will be validated using data from the Recat**LV Cell. This model will also use relevant fluid dynamic parameters for CFD simulation such as viscosity,**surface tension and sand agglomerate sizes. This CFD model will provide a description of mixing patterns in**the Recat LV Cell and the best conditions required for achieving liquid-vapour equilibrium. These identified**mixing conditions, as well of liquid-vapour thermodynamics will provide Syncrude valuable engineering**information for the efficient processing of their Froth Treatment tailings and fine tune their operation for**minimizing solvent loss.

本研究的目的是开发一种新的热力学模型，用于模拟与NRU（石脑油回收装置）** 相关的比例和实际合成原油NRU进料样品中的Dilbit-水-砂/粘土浆料中的饱和蒸汽压。实验将使用Recat LV电池进行开发，该电池 ** 已由CREC（化学反应堆工程中心）**-UWO（西安大略大学）实验室的de Lasa教授团队进行测试和实施。Recat LV Cell允许对蒸汽 ** 压力进行量化，以及识别适当的混合浆料条件。在这方面，NSERC CRD和Syncrude Canada联合赞助的拟议新 ** 研究将涉及进一步增强Recat**LV Cell。获得专利的CREC Optiprobes将用于气相取样以及液滴和颗粒尺寸的在线 ** 测量。预计该策略的使用将为确定高度分散的 ** Dilbit-水-砂/粘土浆相和NRU进料的最佳混合条件和功率输入提供关键 ** 数据。此外，还将为该试验单元开发计算流体动力学（CFD）** 模型。建议的CFD模型将使用Recat**LV Cell的数据进行验证。该模型还将使用相关的流体动力学参数进行CFD模拟，例如粘度、表面张力和砂团聚体尺寸。该CFD模型将提供 ** Recat LV电池中混合模式的描述以及实现液-汽平衡所需的最佳条件。这些确定的 ** 混合条件以及液-气热力学将为Syncrude提供有价值的工程 ** 信息，以有效处理其泡沫处理尾矿并微调其操作，以 ** 最大限度地减少溶剂损失。