Journal
BIORESOURCE TECHNOLOGY
Volume 175, Issue -, Pages 51-58Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.10.045
Keywords
Biosolids; Biomass; Co-gasification; Thermogravimetric analysis; Bubbling fluidized bed
Funding
- Natural Sciences and Engineering Research Council of Canada
Ask authors/readers for more resources
This work studied the feasibility of co-gasification of biosolids with biomass as a means of disposal with energy recovery. The kinetics study at 800 degrees C showed that biomass, such as switchgrass, could catalyze the reactions because switchgrass ash contained a high proportion of potassium, an excellent catalyst for gasification. However, biosolids could also inhibit gasification due to interaction between biomass alkali/ alkaline earth metals and biosolids clay minerals. In the pilot scale experiments, increasing the proportion of biosolids in the feedstockaffected gasification performance negatively. Syngas yield and char conversion decreased from 1.38 to 0.47 m(3)/kg and 82-36% respectively as the biosolids proportion in the fuel increased from 0% to 100%. Over the same range, the tar content increased from 10.3 to 200 g/m(3), while the ammonia concentration increased from 1660 to 19,200 ppmv. No more than 25% biosolids in the fuel feed is recommended to maintain a reasonable gasification. (C) 2014 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available