Low-temperature alternative to carbonization in the synthesis of carbon materials from oil sands process streams

从油砂工艺流合成碳材料时碳化的低温替代方案

• 批准号: 576660-2022
• 负责人: Semagina, NataliaNV
• 金额: $ 3.28万
• 依托单位: University of Alberta
• 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=746845
• 关键词: Low; temperature; alternative; carbonization; synthesis

In oil sand mining operations, bitumen separation from water and solids is achieved via paraffinic froth treatment. The rejected stream contains 75% water, 20% minerals, and 5% carbonaceous material and is disposed of in tailing ponds. Conversion of this stream into value-added products (VAP) would be beneficial both from the environmental and economic perspectives and constitutes the objective of the proposed research project. Potential VAPs of market value are carbon black, graphitic carbon, and other solid carbon-based products. The high-temperature (> 430 oC) approach is well known for carbonization and graphitization but is undesirable because of high energy consumption and thus high GHG emissions. The main objective of the proposed project is to develop a low-temperature process to convert components of the rejected tailings into carbon-rich VAPs. The benefits to Canada include diversification of our economy with "Beyond-Fuel" oil sands-derived products, as well as volume reduction and improvement of quality of rejected streams contributing to tailing ponds. The project can be classified as one of the Waste-to-Value efforts pursued in Canada for environmental and economic benefits.

在油砂开采作业中，通过石蜡泡沫处理实现沥青与水和固体的分离。被拒绝的物流含有75%的水，20%的矿物质和5%的含碳材料，并在尾矿池中处置。从环境和经济的角度来看，将这一物流转化为增值产品（VAP）将是有益的，并构成了拟议研究项目的目标。具有市场价值的潜在VAP是炭黑、石墨碳和其他固体碳基产品。高温（> 430 oC）方法对于碳化和石墨化是众所周知的，但是由于高能量消耗和因此高GHG排放而不受欢迎。拟议项目的主要目标是开发一种低温工艺，将废弃尾矿的成分转化为富含碳的VAP。对加拿大的好处包括：利用“超越燃料”油砂衍生产品实现我国经济的多样化，以及减少尾矿池废弃河流的数量和提高其质量。该项目可被归类为加拿大追求环境和经济效益的价值转化努力之一。