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首页> 外文会议>Clearwater clean coal conference;International technical conference on clean energy >Rheological Properties and Stability Characteristics of Biochar-Algae-Water Slurry Fuels Prepared by Wet Milling
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Rheological Properties and Stability Characteristics of Biochar-Algae-Water Slurry Fuels Prepared by Wet Milling

机译：湿磨法制备生物炭-藻类-水浆料燃料的流变特性和稳定性

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摘要

This study was aimed to understand the rheological properties and stability characteristics of biochar-algae-water (BAW) slurry fuels prepared by wet milling. A pine sawdust biochar and a chlorella vulgaris algae were used in preparing the slurry fuels. The BAW slurries were formulated by mixing the biochar, algae, deionised water, lignosulfonic acid sodium salt (LASS) and then the mixture was ball-milled for various times. The BAW slurries with a constant solid bad ing of 45 wt% were prepared with varied algae proportion in algae/biochar mixture. The apparent viscosity and stability of BAW slurries were measured. It was found that the Dso of the particles of the solid in the slurries decreased with increasing milling time. The viscosity of the slurries decreased first and then increased as milling time increased, reaching a minimal value when the Dso of the solid was between 3 and 7 um. The lowest viscosity of BAW slurries achieved at a given solid loading increased with increasing the algae proportion in the solid. The BAW slurries showed better stability at higher algae proportions due to enhanced flocculatioa
机译：这项研究旨在了解通过湿磨制备的生物炭-藻类水（BAW）浆料燃料的流变特性和稳定性。使用松木屑生物炭和小球藻藻类来制备浆状燃料。通过将生物炭，藻类，去离子水，木质素磺酸钠盐（LASS）混合来配制BAW浆料，然后将混合物球磨不同时间。制备具有45wt％的恒定固含量的BAW浆液，其中藻类/生物炭混合物中的藻类比例不同。测量了BAW浆料的表观粘度和稳定性。发现随着研磨时间的增加，浆料中固体颗粒的Dso降低。浆液的粘度先下降，然后随着研磨时间的增加而增加，当固体的Dso在3至7 um之间时达到最小值。在给定的固体载量下，BAW浆料的最低粘度随藻类在固体中的比例增加而增加。由于絮凝作用增强，BAW浆液在较高藻类比例下显示出更好的稳定性。

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