Thermodynamics and kinetics studies of hydrocarbons/water/salts systems at near- and supercritical conditions - Applications to flash steam generation and bitumen partial upgrading

近临界和超临界条件下碳氢化合物/水/盐系统的热力学和动力学研究 - 在闪蒸汽发生和沥青部分升级中的应用

• 批准号: 551994-2020
• 负责人: Hassanzadeh, HassanH
• 金额: $ 2.64万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=746910
• 关键词: Thermodynamics; kinetics; studies; hydrocarbons; water

As the environmental impacts and energy efficiency of oil sands are concerned, means to reduce the energy intensity and environmental footprint should be considered. Untreated emulsions produced during bitumen production can be heated up and flashed to generate steam. This process is called Flash Steam Generation (FSG). FSG has shown potential to reduce water treatment, reduce greenhouse gas (GHG) emissions, and reduce capital cost. Steam generation by flashing the produced heated emulsions at near- and supercritical supercritical conditions provides a unique opportunity to reduce the GHG emissions and improve the energy efficiency of oil sands upstream operations. In this collaborative research program with Cenovus Energy, we plan to study thermodynamics and kinetics of hydrocarbons/water/salts systems at near- and supercritical conditions with applications to flash steam generation and bitumen partial upgrading. These studies allow us to develop predictive models that can be used for design of industrial scale steam flash generation and bitumen partial upgrading. In addition, the outcome of this study fill the existing knowledge gap in solid-liquid vapor equilibria and kinetics of complex organic/in-organic electrolyte solutions, which find applications in other areas such utilization of geothermal energy resources, waste oxidation and decomposition, bio-mass and fossil fuels extraction and upgrading. The aim of this research is to help industry develop better understanding of thermodynamics and kinetics of water/bitumen/salts mixtures at near- and supercritical conditions to optimize operating conditions required for simultaneous steam production and partial upgrading. The outcome of this project will assist commercialization of the steam flash generation at field scale. The most notable benefits are decrease in the energy consumption, water usage, and emissions, which are well-aligned with the Canada climate change mitigation strategy. The program will provide the opportunity to build laboratory infrastructure to perform fundamental research and train three undergraduate students and two postdoctoral fellows capable of undertaking a broad range of endeavors related to oilsands industry.

由于油砂的环境影响和能源效率，应考虑降低能源强度和环境足迹的方法。在沥青生产过程中产生的未处理的乳液可以加热并闪蒸以产生蒸汽。这个过程被称为闪蒸蒸汽发生（FSG）。FSG已显示出减少水处理、减少温室气体（GHG）排放和降低资本成本的潜力。 通过在近超临界和超临界条件下闪蒸所产生的加热乳液来产生蒸汽，为减少GHG排放和提高油砂上游操作的能源效率提供了独特的机会。在与Cenovus Energy的这项合作研究计划中，我们计划研究烃/水/盐体系在近超临界条件下的热力学和动力学，并将其应用于闪蒸蒸汽生成和沥青部分升级。这些研究使我们能够开发可用于工业规模蒸汽闪蒸产生和沥青部分改质的设计的预测模型。此外，本研究的结果填补了现有的知识空白，在固-液蒸气平衡和动力学的复杂的有机/无机电解质溶液，找到应用在其他领域，如地热能源的利用，废物的氧化和分解，生物质和化石燃料的提取和升级。本研究的目的是帮助工业界更好地了解水/沥青/盐混合物在近超临界条件下的热力学和动力学，以优化同时生产蒸汽和部分升级所需的操作条件。该项目的成果将有助于蒸汽闪蒸发电在油田规模上的商业化。最显著的效益是减少能源消耗、用水和排放，这与加拿大减缓气候变化战略完全一致。该计划将提供建立实验室基础设施的机会，以进行基础研究，并培养三名本科生和两名博士后研究员，能够开展与油砂行业相关的广泛工作。