Model Development and Simulation Study of Underground Coal Gasification

煤炭地下气化模型开发与模拟研究

• 批准号: 395089-2009
• 负责人: Chen, Zhangxing
• 金额: $ 3.49万
• 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: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=529187
• 关键词: Model; Development; Simulation; Study; Underground

The development of Canada's vast oil sands resource has led to increased demands for natural gas to produce steam for bitumen extraction and as a source of hydrogen for bitumen upgrading. However, using increasing volumes of natural gas to process relatively low energy/high carbon resources such as bitumen is costly and not sustainable. Unlocking the full energy potential of coal, in an environmentally responsible process, is key to the ongoing and sustainable development of Canada's oil sands. These benefits transcend the oil sands industry and offer important advantages to a range of other Canadian industries that currently use natural gas as a feedstock or energy source. Canada is ranked tenth worldwide in coal reserves, and Alberta's 33.6 billion tons of coal represents 70% of Canada's total reserves. Consequently, Alberta's coal resources constitute an enormous source of untapped energy. The production of syngas through underground coal gasification (UCG) provides alternatives to the use of natural gas to produce steam and hydrogen for bitumen extraction and upgrading. Furthermore, there may be a great potential for post-UCG CO2 capture and sequestration. The well infrastructure for UCG can be used subsequently for geologic CO2 sequestration operations. UCG is in the early stages of research and development; several key scientific and technical areas, such as UCG process and operation monitoring, combustion and gasification modeling, environmental risk assessment, and feasibility of post-UCG CO2 storage, require extensive research. These areas can be addressed with an accelerated research project. This research project can lever substantially off of existing knowledge and advances in engineering and geo-science simulations.

加拿大巨大的油砂资源的开发导致对天然气的需求增加，以生产用于沥青提取的蒸汽，并作为沥青改质的氢气来源。然而，使用越来越多的天然气来处理相对较低的能源/高碳资源，如沥青，成本很高，而且不可持续。在对环境负责的过程中充分释放煤炭的能源潜力，是加拿大油砂持续和可持续发展的关键。这些好处超越了油砂行业，并为目前使用天然气作为原料或能源的一系列其他加拿大行业提供了重要优势。加拿大的煤炭储量在全球排名第十，艾伯塔省336亿吨的煤炭储量占加拿大总储量的70%。因此，艾伯塔省的煤炭资源构成了未开发能源的巨大来源。通过煤炭地下气化生产合成气(UCG)提供了使用天然气生产蒸汽和氢气的替代方案，用于沥青提取和改质。此外，UCG后的二氧化碳捕获和封存可能有很大的潜力。UCG的油井基础设施可随后用于地质二氧化碳封存作业。UCG处于研发的早期阶段；几个关键的科学和技术领域，如UCG过程和操作监测、燃烧和气化建模、环境风险评估以及UCG后CO2储存的可行性，都需要广泛的研究。这些领域可以通过加速研究项目来解决。这一研究项目可以充分利用现有的工程和地球科学模拟方面的知识和进展。