Effects of Catalysts on Pyrolysis of Chlorella

Abstract:

Sodium compounds, Na2CO3，Na2SO4，NaCl, have been investigated with regard to their catalytic effects on chlorella pyrolysis by thermal analysis experiments. The influence of catalyst categories and dosage on chlorella pyrolysis were studied by the comparison and analysis of the TG（thermogravimetry）and DTG(derivative thermogravimetry) curves derived from tests of differential thermal balance of untreated chlorelal and chlorella mixed with three inorganic compounds of certain scale.The results show that the catalytic effect of the sodium compounds follow Na2CO3>Na2SO4>NaCl, Catalysts of Na2SO4，NaCl decreased the maximum weight loss rates while Na2CO3 increased them. And all the three additives lowered the pyrolysis temperature of chlorella，of which Na2CO3 made the highest conversion of chlorella pyrolysis. As the dosage of carbonate increased, the pyrolysis temperatures decreases and the maximum weight loss rate increases, but the conversion rate of chlorella pyrolysis decreases, considering these two factors, 5%wt is chosen as the optimal dosage of the catalysts.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 161-165
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.161
• Online since: January 2012
• Authors: Gui Ju Li, Ru Yu Zhao, Li Ping Bai
• Keywords: Catalyst, Chlorella, Pyrolysis

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