Developing a mechanistic model for performance prediction of low grade and upgraded coals in various utilization technologies using advanced characreization techniques

使用先进的表征技术开发各种利用技术中低品位和改质煤性能预测的机械模型

• 批准号: 341140-2013
• 负责人: Gupta, Rajender
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 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=527210
• 关键词: Developing; mechanistic; model; performance; prediction

The demand for coal worldwide is expected to increase significantly over next two decades at least. This is pushing the utilization of low grade coals more and more. These low grade coals have one or more problematic properties such as high ash content or high moisture or high sulfur or high alkalis or all of these. There are a number of technologies to upgrade these coals. These can include evaporative drying (using waste heat) or non-evaporative drying (hydrothermal treatment or thermo-mechanical expression), removing minerals using conventional froth floatation or dry cleaning using air dense medium fluidized bed or using much more complex methods of chemical cleaning (solvent extraction) of complete ash removal using a strong acid/base wash dissolving almost all the ash or using organic solvent to dissolving all the organic matter and thus

预计至少在未来二十年内，全球对煤炭的需求预计将大大增加。这正在推动越来越多的低级煤的利用。这些低级煤具有一种或多种有问题的特性，例如高灰分含量，高水分或高硫或高碱或所有这些。有许多技术可以升级这些煤。这些可能包括蒸发干燥（使用废热）或非蒸发干燥（水热处理或热机械表达），使用常规的泡沫漂浮或使用空气密集的中等流动床去除矿物质，或使用更复杂的化学物质清洁（求解）使用强酸/基除液体溶液（求解），以消化的酸/基除外，以消化的酸/基除外，这些方法几乎是酸/基除外。因此