Understanding the adsorption mechanisms of asphaltenes and other surface active components to different mineral and catalyst surfaces in oil production

了解石油生产中沥青质和其他表面活性成分对不同矿物和催化剂表面的吸附机制

• 批准号: 444969-2012
• 负责人: Zeng, Hongbo
• 金额: $ 6.97万
• 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: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=554102
• 关键词: Understanding; adsorption; mechanisms; asphaltenes; other

The proposed project deals with a very challenging issue confronting the Canadian and global petroleum industry. Many industrial problems in oil production such as wellbore or pipeline plugging, alteration of wettability of (clay minerals) solids, sedimentation during crude blending, and catalyst deactivation are all attributed, at least partly, to molecular aggregation and adsorption of asphaltenes and other surface active components (e.g., resins, naphthenic acids) upon exposure to an unfavourable liquid environment and to various solid-oil-water interfaces. Asphaltenes have strong tendency to self-associate leading to aggregates and adsorption to engineering surfaces (such as pipelines), resulting in reduction of oil production from the reservoir and serious processing problems in operations, i.e., corrosion, erosion and fouling in the heat exchangers, transportation devices and distillation equipment, causing a significant increase in operating cost. Although the adsorption of ashpaltenes and other surface active components onto mineral and clay surfaces has received much attention in petroleum industry, the understanding of adsorption mechanisms still remain very limited, particularly at the nanoscale and molecular level.

拟议的项目涉及加拿大和全球石油工业面临的一个非常具有挑战性的问题。石油生产中的许多工业问题，例如井筒或管道堵塞、（粘土矿物）固体润湿性的改变、原油共混期间的沉降和催化剂失活，都至少部分地归因于沥青质和其它表面活性组分（例如，树脂、环烷酸）在暴露于不利的液体环境和各种固体-油-水界面时。沥青质具有强烈的自缔合倾向，导致聚集体和吸附到工程表面（例如管道），导致从储层的石油产量减少和操作中的严重处理问题，即，热交换器、运输设备和蒸馏设备中的腐蚀、侵蚀和结垢，导致运行成本显著增加。尽管在石油工业中，灰树花烯和其它表面活性组分在矿物和粘土表面上的吸附受到了广泛关注，但对吸附机理的理解仍然非常有限，特别是在纳米和分子水平上。