Improved Bio-Oil Quality from Pyrolysis of Pine Biomass in Pressurized Hydrogen

The pyrolysis of pine sawdust was carried out in a fixed bed reactor heated from 30 °C to a maximum of 700 °C in atmospheric nitrogen and pressurized hydrogen (5 MPa). The yield, elemental composition, thermal stability, and composition of the two pyrolysis bio-oils were analyzed and compared. The result shows that the oxygen content of the bio-oil (17.16%) obtained under the hydrogen atmosphere was lower while the heating value (31.40 MJ/kg) was higher than those of bio-oil produced under nitrogen atmosphere. Compounds with a boiling point of less than 200 °C account for 63.21% in the bio-oil at pressurized hydrogen atmosphere, with a proportion 14.69% higher than that of bio-oil at nitrogen atmosphere. Furthermore, the hydrogenation promoted the formation of ethyl hexadecanoate (peak area percentage 19.1%) and ethyl octadecanoate (peak area percentage 15.42%) in the bio-oil. Overall, high pressure of hydrogen improved the bio-oil quality derived from the pyrolysis of pine biomass.

[1]  Zhidan Liu,et al.  Elemental migration and transformation during hydrothermal liquefaction of biomass. , 2021, Journal of hazardous materials.

[2]  P. Reubroycharoen,et al.  Preparation of various hierarchical HZSM-5 based catalysts for in-situ fast upgrading of bio-oil , 2021 .

[3]  M. Saidi,et al.  Catalytic hydrotreatment of lignin‐derived pyrolysis bio‐oils using Cu/γ‐Al2O3 catalyst: Reaction network development and kinetic study of anisole upgrading , 2021, International Journal of Energy Research.

[4]  Wen Wang,et al.  Experimental and techno-economic studies of upgrading heavy pyrolytic oils from wood chips into valuable fuels , 2020 .

[5]  S. Capareda,et al.  Low-temperature catalytic conversion of alkaline sewage sludge bio-oil to biodiesel: Product characteristics and reaction mechanisms , 2020, Environmental Technology & Innovation.

[6]  Zhidan Liu,et al.  Catalytic hydrothermal liquefaction of microalgae over mesoporous silica-based materials with site-separated acids and bases , 2020 .

[7]  A. Pugazhendhi,et al.  Upgrading of bio-oil from thermochemical conversion of various biomass – Mechanism, challenges and opportunities , 2020 .

[8]  H. J. Heeres,et al.  In-depth structural characterization of the lignin fraction of a pine-derived pyrolysis oil , 2020 .

[9]  D. Kubička,et al.  Quantitative analysis of pyrolysis bio-oils: A review , 2020 .

[10]  P. Duan,et al.  Hydrothermal liquefaction of crop straws: Effect of feedstock composition , 2020 .

[11]  Anushree,et al.  Utilization of lignin: A sustainable and eco-friendly approach , 2020 .

[12]  Yulong Wu,et al.  Environmental evaluation of a distributed-centralized biomass pyrolysis system: A case study in Shandong, China. , 2020, The Science of the total environment.

[13]  C. Hills,et al.  Biomass waste utilisation in low-carbon products: harnessing a major potential resource , 2019, npj Climate and Atmospheric Science.

[14]  Yulong Wu,et al.  Environmental impact comparison of typical and resource-efficient biomass fast pyrolysis systems based on LCA and Aspen Plus simulation , 2019, Journal of Cleaner Production.

[15]  Paul T. Williams,et al.  Methane Production from the Pyrolysis–Catalytic Hydrogenation of Waste Biomass: Influence of Process Conditions and Catalyst Type , 2019, Energy & Fuels.

[16]  F. L. Resende,et al.  Comparison between Catalytic Fast Pyrolysis and Catalytic Fast Hydropyrolysis for the Production of Liquid Fuels in a Fluidized Bed Reactor , 2019, Energy & Fuels.

[17]  Jie Wang,et al.  Comparative investigation of rice husk, thermoplastic bituminous coal and their blends in production of value-added gaseous and liquid products during hydropyrolysis/co-hydropyrolysis. , 2018, Bioresource technology.

[18]  Yongping Yang,et al.  Catalytic fast pyrolysis of biomass with noble metal-like catalysts to produce high-grade bio-oil: Analytical Py-GC/MS study , 2018 .

[19]  Jie Wang,et al.  Parametric study of two-stage hydropyrolysis of lignocellulosic biomass for production of gaseous and light aromatic hydrocarbons. , 2017, Bioresource technology.

[20]  Tiejun Wang,et al.  Efficient upgrading process for production of low quality fuel from bio-oil , 2016 .

[21]  Bin Ru,et al.  Pyrolysis behaviors of four lignin polymers isolated from the same pine wood. , 2015, Bioresource technology.

[22]  H. Fu,et al.  Liquefaction of Macroalgae Enteromorpha prolifera in Sub-/Supercritical Alcohols: Direct Production of Ester Compounds , 2012 .

[23]  G. Neutelings,et al.  Lignin variability in plant cell walls: contribution of new models. , 2011, Plant science : an international journal of experimental plant biology.

[24]  Linghong Zhang,et al.  Overview of recent advances in thermo-chemical conversion of biomass. , 2010 .

[25]  S. Saka,et al.  Effects of side-chain hydroxyl groups on pyrolytic β-ether cleavage of phenolic lignin model dimer , 2007, Journal of Wood Science.

[26]  C. S. Park,et al.  A simple kinetic analysis of syngas during steam hydrogasification of biomass using a novel inverted batch reactor with instant high pressure feeding. , 2016, Bioresource technology.