Key Words:chlorella; bio-oil; catalytic pyrolysis; gamma-Al2O3
Abstract:Chlorella samples were pyrolysed in a fixed bed reactor with gamma-Al2O3 or ZSM-5 molecular sieve catalyst at 600 degrees C. Liquid oil samples was collected from pyrolysis experiments in a condenser and characterized for water content, kinematic viscosity and heating value. In the presence of catalysts, gas yield decreased and liquid yield increased when compared with non-catalytic pyrolysis at the same temperatures. Moreover, pyrolysis oil from catalytic with gamma-Al2O3 runs carries lower water content and lower viscosity and higher heating value. Comparison of two catalytic products, the results were showed that gamma-Al2O3 has a higher activity than that of ZSM-5 molecular sieve. The acidity distribution in these samples has been measured by t.p.d, of ammonia, the gamma-Al2O3 shows a lower acidity. The gamma-Al2O3 catalyst shows promise for production of high-quality bio-oil from algae via the catalytic pyrolysis.
Volume:873
Translation or Not:no