Title of article :
Experimental study on bio-oil upgrading over catalyst in supercritical ethanol
Author/Authors :
Dang، نويسنده , , Qi and Luo، نويسنده , , Zhongyang and Zhang، نويسنده , , Jixiang and Wang، نويسنده , , Jun and Chen، نويسنده , , Wen and Yang، نويسنده , , Yi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
10
From page :
683
To page :
692
Abstract :
The effects of reaction conditions, including the initial hydrogen pressures (0.5 MPa, 2.0 MPa), the mass ratios of ethanol to bio-oil (5:1, 3:1, 2:1, 1:1) and reaction temperatures (260 °C, 280 °C, 300 °C) on catalytic upgrading of fast pyrolysis bio-oil were investigated in this work. Experiments were carried out in supercritical ethanol with bifunctional 5 % Pt / SO 4 2 - / ZrO 2 / SBA-15 catalyst. The physical properties and organic compounds of upgraded bio-oil were compared and the mass and energy balance of certain upgrading processes were studied. The results showed that higher initial hydrogen pressure (2.0 MPa) could inhibit coke formation effectively. Increasing mass ratio of ethanol to bio-oil (5:1, 3:1) was helpful for desired products formation and heating value improvement as well as lower coke yield. With the rising temperature, the heating value of upgraded bio-oil increased, but the amount of desired products reduced and the formation of coke became much more serious.
Keywords :
Catalytic , Upgrading , Bio-oil , Supercritical ethanol
Journal title :
Fuel
Serial Year :
2013
Journal title :
Fuel
Record number :
1468626
Link To Document :
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