Title of article :
The resource utilization of algae—Preparing coal slurry with algae
Author/Authors :
Li، نويسنده , , Weidong and Li، نويسنده , , Weifeng and Liu، نويسنده , , Haifeng، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
6
From page :
965
To page :
970
Abstract :
Nowadays, the occurrence of harmful algal blooms is increasing rapidly all over the world. However, the methods of resource utilization of algae are very few. In this study, we propose a new way to dispose algae, which is gasification of coal–algae slurry. Coal slurries prepared with algae were investigated, and gasification reactivity of coal–algae slurry was compared with that of coal–water slurry (CWS). The results showed that, anaerobic fermentation, chemical treatment, high-speed shearing and heating are effective pre-treatment methods on reducing the viscosity of algae, which could obviously increase the maximum solids concentration of coal–algae slurry. When the de-ionized water/algae ratio is 1:1, the maximum solids concentration could get to 62.5 wt.%, which is almost the same as that of CWS. All the coal–algae slurries exhibit pseudo-plastic behavior, and this type of fluid is shear-thinning. Compared with CWS, the stability of coal–algae slurry is much better, which could be no solids deposition after 70 h. The coal–algae slurry displays better gasification reactivity than CWS.
Keywords :
algal bloom , Coal–algae slurry , gasification , Slurryability
Journal title :
Fuel
Serial Year :
2010
Journal title :
Fuel
Record number :
1465539
Link To Document :
بازگشت