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首页> 外文期刊>Combustion Science and Technology >Co-combustion Characteristics of coal-Scenedesmus Microalgae Blends and Their Resulting Ash
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Co-combustion Characteristics of coal-Scenedesmus Microalgae Blends and Their Resulting Ash

机译：煤铜矿微藻混合的共燃烧特性及其灰

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This study investigated the combustion behavior and evolved greenhouse gases of coal, Scenedesmus microalgae, and coal-Scenedesmus microalgae blends (Coalgae (R) 5-20%) in air using a thermogravimetric analyzer (TG)-mass spectrometer (MS). Coalgae (R) refers to a blend of coal fines and microalgae biomass. TG-DTG curves of coal and microalgae confirmed that the combustion behavior of these materials were different. Scanning Electron Micrograph (SEM) morphology images of ash obtained from the combustion of coal and Coalgae (R) 5-20% confirmed changes in devolatilization and combustion behavior of solid raw fuel. A significant reduction in activation energy of 160.4 kJ/mol, 159.6 kJ/mol, 151.3 kJ/mol, and 134.2 kJ/mol for Coalgae (R) 5%, Coalgae (R) 10%, Coalgae (R) 15% and Coalgae (R) 20%, respectively, compared to coal (161.3 kJ/mol) was achieved. The lowering of activation energy could be attributed to the relative decrease in fixed carbon. MS data presented a decrease in the emissions of CO2 (m/e 44), NOx (NO: m/e 30 and NO2: m/e 46) and SO2 (m/e 64) from coal to Coalgae (R) 5-20% due to the complex combustion mechanism in the presence of radicals. The Coalgae (R) blends showed a synergistic effect due to different combustion characteristics of coal and Scenedesmus microalgae. The results obtained from this work provide a reference to further work on co-combustion of coal and microalgae to some extent.
机译：本研究调查了使用热量分析仪（Tg）--mass光谱仪（MS）在空气中燃烧行为和煤炭，Scenedesmus Microalgae和煤刺的温室气体的燃烧行为和进化温室气体。煤炭（R）是指煤粉和微藻生物质的混合物。煤和微藻的TG-DTG曲线证实了这些材料的燃烧行为是不同的。扫描电子显微照片（SEM）形态图像的灰烬和煤炭燃烧（R）5-20％的脱挥发性和固体原料燃料燃烧行为的变化。活化能量的显着降低为160.4 kJ / mol，159.6kJ / mol，151.3kJ / mol，134.2kJ / mol用于煤（R）5％，煤炭（r）10％，煤脂（r）15％和煤炭（R）与煤（161.3 kJ / mol）相比，分别为20％。活化能量的降低可归因于固定碳的相对减少。 MS数据呈现CO 2（M / E 44），NOx（NO：M / E 30和NO 2：M / E 46）和SO2（M / E 64）的减少，从煤中到煤（R）5- 20％由于基团存在的复杂燃烧机制。由于煤和施联的燃烧特性，煤炭（R）共混物表现出协同效应。从该工作中获得的结果提供了参考，进一步研究煤和微藻的进一步燃烧到一定程度。

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