Advancing scientific knowledge on fouling, erosion and corrosion in Once Through Steam Generators (OTSGs)

推进直流蒸汽发生器 (OTSG) 结垢、侵蚀和腐蚀方面的科学知识

• 批准号: 532379-2018
• 负责人: Mayer, BernhardB
• 金额: $ 20.75万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development 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=755095
• 关键词: Advancing; scientific; knowledge; fouling; erosion

Canada is well positioned to deliver safe, secure, and reliable energy to markets especially via steam-assisted in-situ production of oil sands deposits. This requires highly economic approaches to produce steam in so-called Once Through Steam Generators (OTSGs) while produced fluids are recycled to minimize the environmental footprint of in-situ oil sands operations. The boiler feed water constituents are prone to cause mineral and organic precipitates upon heating in steam generators and erosion and corrosion often resulting in premature OTSG failure. The objective of this research project is to reduce inorganic and organic fouling and erosion and corrosion in OTSGs to enhance water and energy efficiency and achieve greenhouse gas emission reductions. The research team members from the University of Calgary, the University of Alberta, and SAIT will advance the scientific knowledge about inorganic and organic fouling, erosion and corrosion, and modeling of OTSG systems. A unique aspect of this project is the ability to test the applicability of key findings from laboratory and modeling investigations in two large-scale pilot test OTSG rigs. The inter-disciplinary evaluation and interpretation of the research activities will create for the first time a scientifically based technical operating envelope (TOE) for steam generators. An improved scientific knowledge of boiler feed water limits (e.g. hardness, dissolved silica content, content and quality of organic compounds among others) will enable higher steam qualities of up to 90%. This will result in a more economic and environmentally friendly operation of OTSGs and hence in a significantly increased competitive advantage for oil from Canada's large in-situ oil sands reserves.

加拿大有能力向市场提供安全、可靠的能源，特别是通过蒸汽辅助的油砂矿床现场生产。这就需要采用非常经济的方法在所谓的直流蒸汽发生器（OTSG）中生产蒸汽，同时回收采出液，以最大限度地减少现场油砂作业的环境足迹。在蒸汽发生器中加热时，锅炉给水成分易于引起矿物和有机沉淀物，并且侵蚀和腐蚀通常导致OTSG过早失效。该研究项目的目标是减少OTSG中的无机和有机污垢、侵蚀和腐蚀，以提高水和能源效率并实现温室气体减排。来自卡尔加里大学、阿尔伯塔大学和SAIT的研究小组成员将推进有关无机和有机污垢、侵蚀和腐蚀以及OTSG系统建模的科学知识。该项目的一个独特之处是能够在两个大型试点测试OTSG钻机中测试实验室和建模研究的关键结果的适用性。对研究活动的跨学科评估和解释将首次为蒸汽发生器创建一个基于科学的技术操作包线（TOE）。锅炉给水极限（例如硬度、溶解二氧化硅含量、有机化合物的含量和质量等）的科学知识的提高将使蒸汽质量达到90%。这将使OTSG的运营更加经济和环保，从而大大提高加拿大大量原位油砂储量的石油的竞争优势。