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: $ 6.08万
• 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: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618259
• 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 saturationvapour 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, whichhas 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 vapourpressure, as well as the identification of adequate mixing slurry conditions. In this respect, the proposed newresearch under combined NSERC CRD and Syncrude Canada sponsorship will involve enhancing the RecatLV Cell further. The patented CREC Optiprobes will be used for gas phase sampling as well as onlinemeasurement of droplets and particle sizes. It is anticipated that the use of this strategy will provide criticaldata for the identification of best mixing conditions and power input, for highly dispersedDilbit-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 RecatLV 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 inthe Recat LV Cell and the best conditions required for achieving liquid-vapour equilibrium. These identifiedmixing conditions, as well of liquid-vapour thermodynamics will provide Syncrude valuable engineeringinformation for the efficient processing of their Froth Treatment tailings and fine tune their operation forminimizing solvent loss.

本研究的目的是开发一种新的热力学模型，以模拟与NRU（NAPHTHA恢复单元）和使用实际的Syncrude NRU Feed samples相关的dilbit-Water-sand/clay sluries中的饱和度蒸气压力。实验将使用Recat LV细胞开发，该单元由CREC（化学反应堆工程中心） - UWO（西安塔里奥大学）实验室的CREC团队进行了测试和实施。重新的LV细胞允许定量蒸发，并鉴定了足够的混合浆液条件。在这方面，拟议的NSERC CRD和Syncrude Canada赞助的拟议的Newresearch将涉及进一步增强recatlv细胞。获得专利的CREC选光将用于气相采样以及液滴和颗粒尺寸的固定测量。可以预料，该策略的使用将为识别最佳混合条件和功率输入提供关键数据，用于高度分散的dilbit-water-sand/粘土浆液阶段和NRU饲料。此外，将为该测试单元开发计算流体动力学（CFD）模型。提出的CFD模型将使用Recatlv单元的数据进行验证。该模型还将使用相关的流体动态参数进行CFD模拟，例如粘度，表面张力和砂粒大小。该CFD模型将提供对重新LV电池中混合模式的描述，以及实现液体蒸气平衡所需的最佳条件。这些确定的混合条件以及液体蒸气热力学以及融合有价值的工程信息，以有效地处理其泡沫处理尾矿，并微调其运行式的溶剂损失。