Thermogravimetric kinetics of Chlorella pyrenoidosa and textile dyeing sludge blends during co-pyrolysis

ABSTRACT

Reaction mechanisms of Chlorella pyrenoidosa (CP) and textile dyeing sludge (TDS) co-pyrolysis were complex attributed to large activation energy variation. The maximum decomposition rate of CP/TDS co-pyrolysis presented a linearity (R² = 0.9960) versus blending ratio. Obvious synergistic effects had been found during co-pyrolysis at high temperature. The synergistic index of co-pyrolysis reached a maximum value (χ = 3.92%) at a blending ratio of 50% CP and 50% TDS. The blending ratio of 20% CP and 80% TDS led to the minimum lowest synergistic index value (χ = 1.34%), but decreased the apparent activation energy effectively.

KEYWORDS:

• Chlorella pyrenoidosa
• co-pyrolysis
• kinetics
• textile dyeing sludge
• thermogravimetric analysis

Funding

This work was supported by grants from Specialized Research Fund for the Doctoral Program of Higher Education (No. 20130142110016).

Additional information

Funding

This work was supported by grants from Specialized Research Fund for the Doctoral Program of Higher Education (No. 20130142110016).