Evaluation of influence of two different catalysts on the pyrolysis of laurel (Laurus nobilis L.) extraction residues

ABSTRACT

Laurel extraction residues with zeolite and alumina catalysts were pyrolyzed in a fixed-bed reactor with a constant heating rate of 10°C min^–1. The final pyrolysis temperature and sweep gas flow rate were kept constant at 500°C and 100 ml min^–1 in all of the experiments, respectively. The influence of catalysts and their ratio (10, 20, 30, 40, and 50% w/w) on the pyrolysis conversion and product yields were investigated in detail. The physicochemical properties of the catalytic bio-oil were determined and compared to those of non-catalytic bio-oil. The catalytic bio-oils were examined using some spectroscopic and chromatographic techniques.

KEYWORDS:

• Alumina
• bio-oil
• catalyst
• catalytic pyrolysis
• laurel
• zeolite

Additional information

Funding

The authors gratefully acknowledge the financial support granted by Kahramanmaraş Sütçü İmam University, Scientific Research Projects Council (Project no. 2008/3-1D).