BIO-OIL FROM RUBBER WOOD: EFFECTS OF UPGRADING CONDITIONS

Despite its prominent potential, the use of rubber wood (Hevea brasiliensis) for bio-oil production has not been fully investigated. This study reported experimental results of the bio-oil production and upgrading from rubber wood using fast pyrolysis technology. The effects of catalyst nature (vermiculite and dolomite), upgrading temperature and bio-oil/catalyst ratio on the product quality were deeply investigated. The results showed that dolomite was suitable to be used as a catalyst for bio-oil upgrading. At 600 °C and a bio-oil/catalyst ratio of 1:1, the bio-oil yield was maximized, while at 400 °C and a ratio of 1:3, the bio-oil heating value was maximized. Depending on usage purposes, a yield-oriented, heating value-oriented or in-between bio-oil upgrading solution could be considered.

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INFLUENCE OF FAST PYROLYSIS WITH TEMPERATURE ON GAS, CHAR AND BIO-OIL PRODUCTION

Southern Brazilian Journal of Chemistry - Southern Brazilian Journal of Chemistry, Volume 28, No. 28, 2020 ◽

10.48141/sbjchem.v25.n25.2017.6_2017.pdf ◽

2017 ◽

Vol 26 (26) ◽

pp. 1-11

Author(s):

Marcos Antônio KLUNK ◽

Sudipta DASGUPTA ◽

Mohuli DAS

Keyword(s):

Rice Husk ◽

Fast Pyrolysis ◽

Oil Production ◽

High Heat ◽

Alternative Source ◽

Heating Value ◽

High Heat Transfer ◽

Bio Oil ◽

Influence Of Temperature On ◽

Increasing Temperature

Rice husk is among the products that stand out in use, and it is used as an alternative source of energy. The use of rice husk as biomass in the feeding of pyrolytic reactors for power generation and chemical products can reduce the environmental problem destination of this waste. The advantages of this process are in the proper disposal of this waste and energy generation. Fast pyrolysis of the rice husk was carried out in temperatures of 400-600°C. This work aims to evaluate the influence of temperature on yield and product composition of the gas, bio-oil, and char. The yield of bio-oil proved to be efficient (62 wt.% at 450°C) due to the high heat transfer and mass, as well as the residence time in the reactor. In addition, bio-oil production decreases slightly due to increased gas yield (1 to 15 wt.%) as the temperature increases in the range of 400-600°C, with the composition being severely affected, i.e., The concentration of CO increases and that of CO2 decreases. In addition, a slight increase in the concentration of CH4 and C2-C4 hydrocarbons occurs with increasing temperature. The yield of char at 400°C and 600°C was 41.14-34.77 wt.%, respectively, corresponding to a decrease of 16 wt.%. The char obtained is of low heating value but has good features for the production of active carbons and amorphous silica. These results demonstrate the efficiency and optimization of the fast pyrolysis of rice husk, in order to obtain biooil and char.

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Rice Husk and Its Pretreatments for Bio-oil Production via Fast Pyrolysis: a Review

BioEnergy Research ◽

10.1007/s12155-019-10059-w ◽

2019 ◽

Vol 13 (1) ◽

pp. 23-42 ◽

Cited By ~ 4

Author(s):

Siu Hua Chang

Keyword(s):

Rice Husk ◽

Fast Pyrolysis ◽

Oil Production ◽

Bio Oil

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Bio-oil production from fast pyrolysis of furniture processing residue

Korean Journal of Chemical Engineering ◽

10.1007/s11814-020-0688-x ◽

2021 ◽

Vol 38 (2) ◽

pp. 306-315

Author(s):

Hoang Vu Ly ◽

Quoc Khanh Tran ◽

Byung Hee Chun ◽

Changho Oh ◽

Jinsoo Kim ◽

...

Keyword(s):

Fast Pyrolysis ◽

Oil Production ◽

Bio Oil

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Biomass fast pyrolysis in a drop tube reactor for bio oil production: Experiments and modeling

Fuel ◽

10.1016/j.fuel.2017.06.068 ◽

2017 ◽

Vol 207 ◽

pp. 71-84 ◽

Cited By ~ 22

Author(s):

Chamseddine Guizani ◽

Sylvie Valin ◽

Joseph Billaud ◽

Marine Peyrot ◽

Sylvain Salvador

Keyword(s):

Fast Pyrolysis ◽

Oil Production ◽

Drop Tube ◽

Tube Reactor ◽

Bio Oil ◽

Biomass Fast Pyrolysis

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Synthesis and Regeneration of Nickel-Based Catalysts for Hydrodeoxygenation of Beech Wood Fast Pyrolysis Bio-Oil

Catalysts ◽

10.3390/catal8100449 ◽

2018 ◽

Vol 8 (10) ◽

pp. 449 ◽

Cited By ~ 10

Author(s):

Caroline Carriel Schmitt ◽

María Gagliardi Reolon ◽

Michael Zimmermann ◽

Klaus Raffelt ◽

Jan-Dierk Grunwaldt ◽

...

Keyword(s):

Water Content ◽

Ph Value ◽

Beech Wood ◽

Fast Pyrolysis ◽

Nickel Catalysts ◽

Wet Impregnation ◽

Heating Value ◽

Gas Formation ◽

Bio Oil ◽

Temperature Selectivity

Four nickel-based catalysts are synthesized by wet impregnation and evaluated for the hydrotreatment/hydrodeoxygenation of beech wood fast-pyrolysis bio-oil. Parameters such as elemental analysis, pH value, and water content, as well as the heating value of the upgraded bio-oils are considered for the evaluation of the catalysts’ activity and catalyst reuse in cycles of hydrodeoxygenation after regeneration. The reduction temperature, selectivity and hydrogen consumption are distinct among them, although all catalysts tested produce upgraded bio-oils with reduced oxygen concentration, lower water content and higher energy density. Ni/SiO2, in particular, can remove more than 50% of the oxygen content and reduce the water content by more than 80%, with low coke and gas formation. The evaluation over four consecutive hydrotreatment reactions and catalyst regeneration shows a slightly reduced hydrodeoxygenation activity of Ni/SiO2, mainly due to deactivation caused by sintering and adsorption of poisoning substances, such as sulfur. Following the fourth catalyst reuse, the upgraded bio-oil shows 43% less oxygen in comparison to the feedstock and properties comparable to the upgraded bio-oil obtained with the fresh catalyst. Hence, nickel-based catalysts are promising for improving hardwood fast-pyrolysis bio-oil properties, especially monometallic nickel catalysts supported on silica.

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