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

基本信息

批准号：
532379-2018
负责人：
Mayer, Bernhard
金额：
$ 20.36万
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：
2019
资助国家：
加拿大
起止时间：
2019-01-01 至 2020-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=694724
关键词：
Advancing scientific knowledge fouling erosion

项目摘要

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.

加拿大处于有利地位，可以向市场提供安全、可靠的能源，特别是通过蒸汽辅助的油砂矿床原位生产。这需要采用非常经济的方法在所谓的直流蒸汽发生器（OTSG）中产生蒸汽，同时回收产出的液体，以最大限度地减少现场油砂作业的环境足迹。锅炉给水成分在蒸汽发生器中加热时容易产生矿物质和有机沉淀物，并且侵蚀和腐蚀常常导致 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以及侵蚀和腐蚀，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 的研究团队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主要发现的适用性。研究活动的跨学科评估和解释将首次创建基于科学的蒸汽发生器技术操作范围（TOE）。提高锅炉给水限制（例如硬度、溶解二氧化硅含量、有机化合物的含量和质量等）的科学知识将使蒸汽质量提高高达 90%。这将使 OTSG 的运营更加经济和环保，从而显着提高加拿大大量原位油砂储量的石油的竞争优势。