Effect of bio-oil on low-intermediate temperature properties of organosolv lignin-bitumen

Biomass fractionation, as an alternative to biomass pretreatment, has gained increasing research attention over the past few years as it provides separate streams of cellulose, hemicellulose, and lignin. These streams can be used separately and can provide a solution for improving the economics of emerging biorefinery technologies. The sugar streams are commonly used in microbial conversions, whereas during recent years lignin has been recognized as a valuable compound as it is the only renewable and abundant source of aromatic chemicals. Successfully converting lignin into valuable chemicals and products is key in achieving both environmental and economic sustainability of future biorefineries. In this work, lignin retrieved from beechwood sawdust delignification pretreatment via an organosolv process was depolymerized with thermal and catalytic pyrolysis. ZSM-5 commercial catalyst was used in situ to upgrade the lignin bio-oil vapors. Lignins retrieved from different modes of organosolv pretreatment were tested in order to evaluate the effect that upstream pretreatment has on the lignin fraction. Both thermal and catalytic pyrolysis yielded oils rich in phenols and aromatic hydrocarbons. Use of ZSM-5 catalyst assisted in overall deoxygenation of the bio-oils and enhanced aromatic hydrocarbons production. The oxygen content of the bio-oils was reduced at the expense of their yield. Organosolv lignins were successfully depolymerized towards phenols and aromatic hydrocarbons via thermal and catalytic pyrolysis. Hence, lignin pyrolysis can be an effective manner for lignin upgrading towards high added value products.

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Hydrothermolysis of organosolv lignin for the production of bio-oil rich in monoaromatic phenolic compounds

Fuel Processing Technology ◽

10.1016/j.fuproc.2017.09.005 ◽

2017 ◽

Vol 168 ◽

pp. 74-83 ◽

Cited By ~ 28

Author(s):

Syed Farhan Hashmi ◽

Heidi Meriö-Talvio ◽

Kati Johanna Hakonen ◽

Kyösti Ruuttunen ◽

Herbert Sixta

Keyword(s):

Phenolic Compounds ◽

Organosolv Lignin ◽

Bio Oil

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Bio-oil from base-catalyzed depolymerization of organosolv lignin as an antifungal agent for wood

Wood Science and Technology ◽

10.1007/s00226-015-0795-8 ◽

2015 ◽

Vol 50 (3) ◽

pp. 599-615 ◽

Cited By ~ 15

Author(s):

Patrícia Soares Bilhalva Dos Santos ◽

Xabier Erdocia ◽

Darci Alberto Gatto ◽

Jalel Labidi

Keyword(s):

Antifungal Agent ◽

Organosolv Lignin ◽

Bio Oil

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Stable production of platform chemicals from the continuous hydrodeoxygenation of a raw bio-oil using enhanced carbon-based catalysts

10.1021/scimeetings.0c01440 ◽

2020 ◽

Author(s):

Idoia Hita ◽

Tomas Cordero-Lanzac ◽

Francisco J. Garcia-Mateos ◽

Jose Rodriguez-Mirasol ◽

Tomas Cordero ◽

...

Keyword(s):

Platform Chemicals ◽

Stable Production ◽

Bio Oil ◽

Carbon Based

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Stable production of platform chemicals from the continuous hydrodeoxygenation of a raw bio-oil using enhanced carbon-based catalysts

10.1021/scimeetings.0c01439 ◽

2020 ◽

Author(s):

Idoia Hita ◽

Tomas Cordero-Lanzac ◽

Francisco J. Garcia-Mateos ◽

Jose Rodriguez-Mirasol ◽

Tomas Cordero ◽

...

Keyword(s):

Platform Chemicals ◽

Stable Production ◽

Bio Oil ◽

Carbon Based

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Pyrolysis of brown algae (Bifurcaria Bifurcata) in a stainless steel tubular reactor: From a review to a case study

Progress in Agricultural Engineering Sciences ◽

10.1556/446.14.2018.1.2 ◽

2018 ◽

Vol 14 (1) ◽

pp. 31-60 ◽

Cited By ~ 1

Author(s):

M. Y. Guida ◽

F. E. Laghchioua ◽

A. Hannioui

Keyword(s):

Particle Size ◽

Stainless Steel ◽

Flow Rate ◽

Brown Algae ◽

Tubular Reactor ◽

Nitrogen Flow ◽

Nitrogen Flow Rate ◽

Bifurcaria Bifurcata ◽

Bio Oil

This article deals with fast pyrolysis of brown algae, such as Bifurcaria Bifurcata at the range of temperature 300–800 °C in a stainless steel tubular reactor. After a literature review on algae and its importance in renewable sector, a case study was done on pyrolysis of brown algae especially, Bifurcaria Bifurcata. The aim was to experimentally investigate how the temperature, the particle size, the nitrogen flow rate (N2) and the heating rate affect bio-oil, bio-char and gaseous products. These parameters were varied in the ranges of 5–50 °C/min, below 0.2–1 mm and 20–200 mL. min–1, respectively. The maximum bio-oil yield of 41.3wt% was obtained at a pyrolysis temperature of 600 °C, particle size between 0.2–0.5 mm, nitrogen flow rate (N2) of 100 mL. min–1 and heating rate of 5 °C/min. Liquid product obtained under the most suitable and optimal condition was characterized by elemental analysis, 1H-NMR, FT-IR and GC-MS. The analysis of bio-oil showed that bio-oil from Bifurcaria Bifurcata could be a potential source of renewable fuel production and value added chemicals.

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