Opportunities for biomass pyrolysis liquids production and upgrading

1992 ◽  
Vol 6 (2) ◽  
pp. 113-120 ◽  
Author(s):  
A. V. Bridgwater ◽  
M. L. Cottam
Keyword(s):  
Biomass Pyrolysis ◽  
Pyrolysis Liquids

scholarly journals Partial deoxygenation of biomass derived pyrolysis liquids

2018 ◽  
Vol 61 ◽  
pp. 00018
Author(s):  
Murlidhar Gupta ◽  
Jacques Monnier ◽  
Eric Turriff ◽  
Mark Boyd
Keyword(s):  
Environmental Sustainability ◽  
Capital Investment ◽  
High Pressures ◽  
Positive Impact ◽  
Biomass Pyrolysis ◽  
High Oxygen Content ◽  
Bio Oil ◽  
Pre Treatment ◽  
Lower Energy Density ◽  
Pyrolysis Liquids

Biomass pyrolysis liquids (also known as bio-oil), are derived from renewable lignocellulosic biomass residues by fast pyrolysis process. These second-generation oxygenated hydrocarbon resources have the potential to partially substitute for petroleum-derived feedstocks and thus enhance the economic and environmental sustainability of our natural resources. However, in contrast to petroleum fuels, biomass-derived pyrolysis liquids contain a large amount of oxygen, usually 40-50% wt% (wet basis). This undesirable high oxygen content in pyrolysis liquids is considered as the primary reason for its high polarity, high acidity, lower stability, lower energy density and very low miscibility with conventional crude refining feedstocks. There are two major pathways for upgrading the pyrolysis liquids. While hydrodeoxygenation route is one of the most explored options, it requires production and supply of large amounts of expensive hydrogen at high pressures, mandating large and centralized upgrading plants, and thus large capital investment. In this paper, we discuss an alternative method of pyrolysis liquid upgrading, using cheap and affordable hydrogen donor additives and catalysts to promote partial deoxygenation at near atmospheric pressure. This approach is preferably to be used as a pre-treatment and stabilizing method for pyrolysis liquids in the close vicinity of remote biomass pyrolysis plants. The pre-treated oil, then can be shipped for further hydrocracking process in a centralized co-processing facility. Preliminary results from the initial proof of concept experiments involving a 200 g/h gas-phase continuous fast catalytic cracking system with continuous coke removal to enhance deoxygenation performance are presented. These results indicate positive impact of catalyst bed on quality and yield of the upgraded bio-oil product in terms of pH, viscosity, degree of deoxygenation, oil yield and concentration of hydrogen in the off gases.

Fuel-Specification Considerations for Biomass Pyrolysis Liquids to be Used in Stationary Gas Turbines

1996 ◽  
Author(s):  
Clifford A. Moses ◽  
Henry L. Bernstein
Keyword(s):  
Gas Turbines ◽  
Chemical Properties ◽  
Fuel Quality ◽  
Biomass Pyrolysis ◽  
Biomass Fuels ◽  
Coal Liquids ◽  
Design Characteristics ◽  
Effective Use ◽  
Pyrolysis Liquids ◽  
Physical And Chemical

A review of the physical and chemical properties of various biomass pyrolysis liquids suggests that they will require special consideration for use in current gas turbines for power generation. A new balance between fuel quality and engine design characteristics will have to found for the effective use of these liquids. Unfortunately, the values of many critical properties are beyond the range of experience with any distillate fuel, residual fuel, or alternate fuel such as coal liquids or shale oil. Furthermore, there appear to be some characteristics which are new and may require additional considerations in the fuel specification. Some system testing with biomass fuels covering the range of properties will be necessary to develop relevant relationships before design modifications can be made to accommodate biomass fuels and for fuel specifications to be established.

scholarly journals A selective extraction method for recovery of monofunctional methoxyphenols from biomass pyrolysis liquids

2019 ◽  
Vol 21 (9) ◽  
pp. 2257-2265 ◽  
Author(s):  
Ofei D. Mante ◽  
Samuel J. Thompson ◽  
Soukri Mustapha ◽  
David C. Dayton
Keyword(s):  
Phenolic Compounds ◽  
Extraction Method ◽  
Selective Extraction ◽  
Biomass Pyrolysis ◽  
Selective Method ◽  
Pyrolysis Liquids

Selective method for separation of phenolic compounds from biomass pyrolysis liquids.

Review on Reaction Pathways in the Catalytic Upgrading of Biomass Pyrolysis Liquids

2021 ◽  
Author(s):  
Richard Pujro ◽  
Juan Rafael García ◽  
Melisa Bertero ◽  
Marisa Falco ◽  
Ulises Sedran
Keyword(s):  
Reaction Pathways ◽  
Biomass Pyrolysis ◽  
Catalytic Upgrading ◽  
Pyrolysis Liquids

Hydrogen from aqueous fraction of biomass pyrolysis liquids by catalytic steam reforming in fluidized bed

Energy ◽  
2011 ◽  
Vol 36 (4) ◽  
pp. 2215-2224 ◽  
Author(s):  
J.A. Medrano ◽  
M. Oliva ◽  
J. Ruiz ◽  
L. García ◽  
J. Arauzo
Keyword(s):  
Fluidized Bed ◽  
Steam Reforming ◽  
Biomass Pyrolysis ◽  
Aqueous Fraction ◽  
Pyrolysis Liquids ◽  
Catalytic Steam Reforming
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