Upgrading biochar from bio-oil distillation residue by adding bituminous coal: Effects of induction conditions on physicochemical properties

Investigation on the pyrolysis behaviour of coal-biooil slurry (CBS) fuel prepared at different ratios (100:0; 70:30; 60:40;0: 100) were conducted using a Thermogravimetric Analyzer (TGA). The selected coal sample was Clermont bituminous coal (Australia), while Empty Fruit Bunch (EFB) was used as source of bio-oil that was thermally converted by means of pyrolysis. Thermal degradation of CBS fuel was performed in an inert atmosphere (50mL/min nitrogen) under non-isothermal conditions from room temperature to 1000°C at heating rate of 10°C/min. The proportions of CBS fuel at 70:30 and 60:40 blends were observed to have influenced the fuel properties of the slurry. The addition of bio-oil will shift the temperature region towards early devolatilization. Meanwhile, the thermal profiles of the blends, showed potential trends that followed the characteristics of an ideal slurry fuel where highest degradation rate was found at the blend ratio of 60:40 biooil/coal. These findings can be useful to the development of a slurry fuel technology for application in the vast existing conventional power plants.

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Effects of high-pressure homogenization on physicochemical properties and storage stability of switchgrass bio-oil

Fuel Processing Technology ◽

10.1016/j.fuproc.2008.11.003 ◽

2009 ◽

Vol 90 (3) ◽

pp. 415-421 ◽

Cited By ~ 10

Author(s):

Ronghai He ◽

X. Philip Ye ◽

Federico Harte ◽

Burton English

Keyword(s):

High Pressure ◽

Physicochemical Properties ◽

Storage Stability ◽

High Pressure Homogenization ◽

Bio Oil ◽

And Storage

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Analysis of bio-oil physicochemical properties and aging process

Energy Sources Part A Recovery Utilization and Environmental Effects ◽

10.1080/15567036.2018.1489913 ◽

2018 ◽

Vol 40 (18) ◽

pp. 2117-2123 ◽

Cited By ~ 2

Author(s):

Zhang Xiaoyin ◽

Zhao Weidong ◽

Huang Jianquan ◽

Ni Kang ◽

Junfeng Wang

Keyword(s):

Physicochemical Properties ◽

Aging Process ◽

Bio Oil

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Physicochemical properties of bio-oil and biochar produced by fast pyrolysis of stored single-pass corn stover and cobs

Bioresource Technology ◽

10.1016/j.biortech.2012.09.061 ◽

2012 ◽

Vol 125 ◽

pp. 348-352 ◽

Cited By ~ 33

Author(s):

Ajay Shah ◽

Matthew J. Darr ◽

Dustin Dalluge ◽

Dorde Medic ◽

Keith Webster ◽

...

Keyword(s):

Physicochemical Properties ◽

Corn Stover ◽

Fast Pyrolysis ◽

Single Pass ◽

Bio Oil

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An Investigation into the Combustion of Mixed Fuel Consisting of Bituminous Coal and Crude Bio-Oil

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.773-774.1184 ◽

2015 ◽

Vol 773-774 ◽

pp. 1184-1188

Author(s):

Hazlin Hamdan ◽

Munawar Zaman Shahruddin ◽

Ahmad Rafizan Mohamad Daud ◽

Syed Shatir A. Syed-Hassan

Keyword(s):

Gas Flow ◽

Bituminous Coal ◽

Decomposition Reaction ◽

Volatile Matter ◽

Kinetic Evaluation ◽

Exponential Factor ◽

Air Atmosphere ◽

Coal Fuel ◽

Bio Oil ◽

Lower Temperature

The combustion of bituminous coal, bio-oil, and their slurry mixtures were performed under air atmosphere using Thermogravimetric Analyzer (TGA). All samples were run from room temperature to 110°C and held for 10 minutes before the temperature was ramped to 1100°C and held again for 10 minutes at 1100°C at the heating rate of 10°C/min and gas flow rate of 50mL/min. Kinetic evaluation was conducted using a simple Arrhenius-type kinetic model with first-order decomposition reaction. Apparent activation energy, Ea, and pre-exponential factor, A, were calculated from the modelling equation. Results reveal that the reactivity of CBS fuel is higher than a single coal fuel to which the addition of bio-oil helps to increase the combustion performance of the blends. The optimum fuel ratio appears at 50:50 ratio with equal contribution of coal and bio-oil properties that contribute to the increase in volatile matter causing maximum combustion rate achievable at much lower temperature compared to single coal fuel.

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