scholarly journals Microwave-Assisted Pyrolysis of Pine Wood Sawdust Mixed with Activated Carbon for Bio-Oil and Bio-Char Production

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1437
Author(s):  
Anissa Khelfa ◽  
Filipe Augusto Rodrigues ◽  
Mohamed Koubaa ◽  
Eugène Vorobiev
Keyword(s):  
Activated Carbon ◽  
Catalytic Effect ◽  
Maximum Temperature ◽  
Experimental Conditions ◽  
Pine Wood ◽  
Microwave Assisted ◽  
Wood Sawdust ◽  
Bio Oil ◽  
Pine Wood Sawdust ◽  
Heating Technology

Pyrolysis of pine wood sawdust was carried out using microwave-heating technology in the presence of activated carbon (AC). Experimental conditions were of 20 min processing time, 10 wt.% of AC, and a microwave power varying from 100 to 800 W. The results obtained showed that the microwave absorber allowed increasing the bio-oil yield up to 2 folds by reducing the charcoal fraction. The maximum temperature reached was 505 °C at 800 W. The higher heating values (HHV) of the solid residues ranged from 17.6 to 30.3 MJ/kg. The highest HHV was obtained for the sample heated at 800 W with 10 wt.% of AC, which was 33% higher than the non-charged sample heated at the same power. Furthermore, the addition of AC allowed showing the probable catalytic effect of the AC in the charged sample pyrolysis bio-oils.

scholarly journals Enhancing the Phenolic Content of Bio-Oil by Acid Pre-Treatment of Biomass

2018 ◽  
Vol 7 (2) ◽  
pp. 163-169
Author(s):  
Nurgül Özbay ◽  
Elif Yaman
Keyword(s):  
Thermal Degradation ◽  
Phenolic Content ◽  
Degradation Products ◽  
Chemical Application ◽  
Pyrolysis Gas ◽  
Pine Wood ◽  
Wood Sawdust ◽  
Bio Oil ◽  
Pre Treatment ◽  
Pine Wood Sawdust

Pyrolysis of lignocellulosic biomass with acidic pre-treatment to produce valuable bio-chemicals has been carried out in an integrated pyrolysis-gas chromatograph/mass spectrometry system. Three different waste biomasses (fir wood sawdust, pine wood sawdust and nutshell) were subjected to acidic solution to specify the acid pre-treatment effect on biomass chemical structure, thermal degradation profile and pyrolysis products. Post acid pre-treatments, the changes in the biomasses and thermal degradation profile were studied through proximate, structure and ultimate analysis and thermogravimetric. The pre-treatment significantly reduced the inorganic, cellulose and hemicellulose content in biomass samples. According to the pyrolysis experiment results, acid pre-treatment provided the increasing of the amount of phenolic in the degradation products at 10 min pyrolysis time. All the results would assist further understanding of thermal decomposition and thermo-chemical application for bio-fuels and bio-chemicals of fir wood sawdust, pine wood sawdust and nutshell.Article History: Received January 15th 2018; Received in revised form May 24th 2018; Accepted 7th June 2018; Available onlineHow to Cite This Article: Ozbay, N. and Yaman, E (2018) Enhancing the Phenolic Content of Bio-Oil by Acid Pre-Treatment of Biomass. Int. Journal of Renewable Energy Development, 7(2), 163-169.https://doi.org/10.14710/ijred.7.2.163-169

The Performances of Intimately Mix and Layer Methods in Microwave Assisted Pyrolysis System

2014 ◽  
Vol 554 ◽  
pp. 150-154 ◽  
Author(s):  
Faisal Mushtaq ◽  
Ramli Mat ◽  
Farid Nasir Ani
Keyword(s):  
Activated Carbon ◽  
Oil Palm ◽  
Pyrolysis Product ◽  
High Energy ◽  
Process Temperature ◽  
Microwave Assisted ◽  
Palm Shell ◽  
Layer Method ◽  
Oil Palm Shell ◽  
Bio Oil

The oil palm shell was subjected to multimode microwave pyrolysis at a fixed microwave power of 300W at 2.54GHz using intimately mix and layer microwave heating methods to observe process temperature, pyrolysis product and bio-oil composition at various levels of Coconut Activated Carbon (CAC). The results indicated that the layers method achieved higher bio-oil yield with complete uniformity of process temperature at high CAC loading compared to intimate mix method. The increased CAC loading increased selectivity towards phenol in bio-oil with maximum phenol 80.23 %area and 51.77%area under GC-MS at 75wt% CAC loading using intimately mix and layer method, respectively. The layer method produced a new product 1,1-dimethyl hydrazine of 11.24–13.01 %area in bio-oils which was not found of using intimately mix method. The 1,1-dimethly hydrazine is an important source of high energy fuel. Keywords: Oil palm shell; intimately mix method; layer method; coconut activated carbon; microwave assisted pyrolysis; heating profile; bio-oil

Hydrogen production from biomass by continuous fast pyrolysis and in-line steam reforming

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 25975-25985 ◽  
Author(s):  
A. Arregi ◽  
G. Lopez ◽  
M. Amutio ◽  
I. Barbarias ◽  
J. Bilbao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Steam Reforming ◽  
Fast Pyrolysis ◽  
Fluidised Bed ◽  
Spouted Bed ◽  
Commercial Catalyst ◽  
Pine Wood ◽  
Wood Sawdust ◽  
Pine Wood Sawdust ◽  
Fluidised Bed Reactor

The continuous fast pyrolysis of pine wood sawdust has been studied in a conical spouted bed reactor (CSBR) followed by in-line steam reforming of the pyrolysis vapours in a fluidised bed reactor on a Ni commercial catalyst.

Catalytic effects of eight inorganic additives on pyrolysis of pine wood sawdust by microwave heating

2008 ◽  
Vol 82 (1) ◽  
pp. 145-150 ◽  
Author(s):  
Ming-qiang Chen ◽  
Jun Wang ◽  
Ming-xu Zhang ◽  
Ming-gong Chen ◽  
Xi-feng Zhu ◽  
...  
Keyword(s):  
Microwave Heating ◽  
Pine Wood ◽  
Wood Sawdust ◽  
Pine Wood Sawdust ◽  
Catalytic Effects
Sign in / Sign up

Export Citation Format

Share Document