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首页> 外文期刊>Oil Shale >CALCULATION OF THE AMOUNT OF ESTONIAN OIL SHALE PRODUCTS FROM COMBUSTION IN REGULAR AND OXY-FUEL MODE IN A CFB BOILER
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CALCULATION OF THE AMOUNT OF ESTONIAN OIL SHALE PRODUCTS FROM COMBUSTION IN REGULAR AND OXY-FUEL MODE IN A CFB BOILER

机译：CFB锅炉以常规和氧燃料模式燃烧产生的爱沙尼亚油页岩产品量的计算

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摘要

Oxy-fuel combustion is considered as one of the promising carbon capture and storage (CCS) technologies for coal-fired boilers. In oxy-fuel combustion, the combustion gases are oxygen and the recirculating flue gas, and the main components of the combustion gas are O2, CO2 and H2O [If. The paper presents the results of the calculation of the flue gas amount during combustion of oil shale using oxy-fuel technology in a circulated fluidized bed (CFB) mode. The calculations were performed for different oil shale heating values and different recycled flue gas (RFG) ratios. Oxy-fuel combustion with flue gas recycling was found to enable the decrease of the extent of carbonate minerals decomposition (ECD), thereby increasing the amount of heat released per 1 kg of fuel. To minimize ECD, the recycled flue gas ratio should be maintained at a level higher than 0.7. This condition allows an increase of the partial pressure of CO2 over the equilibrium state line of calcite decomposition reaction at the bed temperature.
机译：含氧燃料燃烧被认为是燃煤锅炉有前途的碳捕集与封存（CCS）技术之一。在含氧燃料燃烧中，燃烧气体为氧气和再循环烟道气，燃烧气体的主要成分为O2，CO2和H2O。本文介绍了在循环流化床（CFB）模式下使用氧燃料技术计算油页岩燃烧过程中烟气量的结果。针对不同的油页岩热值和不同的循环烟气（RFG）比进行了计算。发现通过烟气再循环进行含氧燃料燃烧可以减少碳酸盐矿物分解（ECD）的程度，从而增加每1千克燃料释放的热量。为了使ECD降至最低，应将再循环烟气比例保持在高于0.7的水平。该条件允许在床温度下在方解石分解反应的平衡状态线之上增加CO 2的分压。

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