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Author(s): |
Dingmao Peng, School of Energy and Power Engineering, University of Shanghai for Science and Technology,Shanghai, China
Shouyu Zhang, School of Energy and Power Engineering, University of Shanghai for Science and Technology,Shanghai, China
Xiujun Wang, School of Energy and Power Engineering, University of Shanghai for Science and Technology,Shanghai, China
Jian Wang, School of Energy and Power Engineering, University of Shanghai for Science and Technology,Shanghai, China |
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Abstract: |
The disposal of low quality biomass has been becoming a problem due to its increasing production and potential pollution. Low quality biomass can be converted quickly by low temperature catalytic gasification process into hydrogen or syn-gas (H2 and CO). The low quality biomass waste, including hen manure and pig manure, were pretreated with dilute acid washing methods. The pyrolysis behavior of the biomass waste before and after acid washing was investigated using TG analyzer. The results indicate that the pyrolysis of the manure samples mainly occurs in 473~653 K. During the main pyrolysis stage, pig manure samples experienced two distinct weight-loss stages and only one peak was observed in the DTG curve of hen manure sample. It can be inferred that the main organic components in pig manure include hemicelluloses, celluloses and lignins, but hen manure is mainly composed of celluloses. Hen manure includes lots of CaCO3. The gasification reaction between hen manure char and CO2, which is from CaCO3 decompositon, occurs at high pyrolysis temperature. The mineral matters in the manures have catalytic effect on thier pyrolysis process and the activation energy of the demineralized manure sample increases.
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