scholarly journals Woody Feedstock Pretreatments to Enhance Pyrolysis Bio-oil Quality and Produce Transportation Fuel

2019 ◽  
Author(s):  
Hamid Rezaei ◽  
Fahimeh Yazdanpanah ◽  
Jim Choon Lim ◽  
Anthony Lau ◽  
Shahab Sokhansanj
Keyword(s):  
Oil Quality ◽  
Transportation Fuel ◽  
Bio Oil

scholarly journals An overview of recent development in bio-oil upgrading and separation techniques

2020 ◽  
Vol 26 (5) ◽  
pp. 200382-0
Author(s):  
Narayan Lal Panwar ◽  
Arjun Sanjay Paul
Keyword(s):  
Agricultural Waste ◽  
Oil Quality ◽  
High Water ◽  
High Viscosity ◽  
High Water Content ◽  
Pyrolysis Oil ◽  
Transportation Fuel ◽  
Separation Techniques ◽  
Advantages And Disadvantages ◽  
Bio Oil

Bio-oil produced from the fast pyrolysis/hydrothermal liquefaction is gaining popularity worldwide as the forerunner to replace fossil fuel. The bio-oil can be produced from agricultural waste, forest residue, and urban organic waste. It is also called pyrolysis oil, renewable fuel, and has the potential to be used as fuel in many applications. The application of bio-oil as transportation fuel helps to reduce the emission of greenhouse gases and to keep up the ecological balance. The bio-oil has the heating value of nearly half of the diesel fuel i.e. 16-19 MJ/kg; but, the inferior properties such as high water content, high viscosity, low pH, and poor stability hinder bio-oil application as a fuel. Thus, this paper provides a detailed review of bio-oil properties, its limitations and focuses on the recent development of different upgrading and separation techniques, used to date for the improvement of the bio-oil quality. Furthermore, the advantages and disadvantages of each upgrading method along with the application and environmental impact of bio-oil are also discussed in this article.

scholarly journals Hydrogen-Free Deoxygenation of Bio-Oil Model Compounds over Sulfur-Free Polymer Supported Catalysts

2020 ◽  
Vol 7 (1) ◽  
pp. 29-36
Author(s):  
Antonina A. Stepacheva ◽  
Mariia E. Markova ◽  
Yury V. Lugovoy ◽  
Kirill V. Chalov ◽  
Mikhail G. Sulman ◽  
...  
Keyword(s):  
Supercritical Fluids ◽  
Aromatic Compounds ◽  
Supported Catalysts ◽  
Major Product ◽  
Hypercrosslinked Polystyrene ◽  
Model Compounds ◽  
Transportation Fuel ◽  
Novel Approach ◽  
Bio Oil ◽  
Hydrogen Donors

AbstractHydrotreatment of bio-oil oxygen compounds allows the final product to be effectively used as a liquid transportation fuel from biomass. Deoxygenation is considered to be one of the most promising ways for bio-oil upgrading. In the current work, we describe a novel approach for the deoxygenation of bio-oil model compounds (anisole, guaiacol) using supercritical fluids as both the solvent and hydrogen-donors. We estimated the possibility of the use of complex solvent consisting of non-polar n-hexane with low critical points (Tc = 234.5 ºC, Pc = 3.02 MPa) and propanol-2 used as H-donor. The experiments were performed without catalysts and in the presence of noble and transition metals hydrothermally deposited on the polymeric matrix of hypercrosslinked polystyrene (HPS). The experiments showed that the presence of 20 vol. % of propanol-2 in n-hexane results in the highest (up to 99%) conversion of model compounds. When the process was carried out without a catalyst, phenols were found to be a major product yielding up to 95 %. The use of Pd- and Co-containing catalyst yielded 90 % of aromatic compounds (benzene and toluene) while in the presence of Ru and Ni cyclohexane and methylcyclohexane (up to 98 %) were the main products.

scholarly journals Impact of ZSM-5 Deactivation on Bio-Oil Quality during Upgrading of Straw Derived Pyrolysis Vapors

2018 ◽  
Vol 33 (1) ◽  
pp. 397-412 ◽  
Author(s):  
Andreas Eschenbacher ◽  
Peter Arendt Jensen ◽  
Ulrik Birk Henriksen ◽  
Jesper Ahrenfeldt ◽  
Chengxin Li ◽  
...  
Keyword(s):  
Oil Quality ◽  
Bio Oil

Physical, chemical, thermal and biological pre-treatment technologies in fast pyrolysis to maximize bio-oil quality: A critical review

2019 ◽  
Vol 128 ◽  
pp. 105333 ◽  
Author(s):  
Brenda J. Alvarez-Chavez ◽  
Stéphane Godbout ◽  
Joahnn H. Palacios-Rios ◽  
Étienne Le Roux ◽  
Vijaya Raghavan
Keyword(s):  
Critical Review ◽  
Oil Quality ◽  
Fast Pyrolysis ◽  
Physical Chemical ◽  
Bio Oil ◽  
Treatment Technologies ◽  
Pre Treatment

Investigation of operating parameters of water extraction processes for improving bio-oil quality

2014 ◽  
Vol 31 (12) ◽  
pp. 2229-2236 ◽  
Author(s):  
Boonyawan Yoosuk ◽  
Jiraporn Boonpo ◽  
Parncheewa Udomsap ◽  
Sittha Sukkasi
Keyword(s):  
Oil Quality ◽  
Water Extraction ◽  
Operating Parameters ◽  
Bio Oil ◽  
Extraction Processes

Improving Bio-oil Quality through Co-Pyrolysis of Corn Cobs and Polypropylene in a Stirred Tank Reactor

2016 ◽  
Vol 7 (8) ◽  
pp. 1381 ◽  
Author(s):  
Dijan Supramono ◽  
Jonathan Jonathan ◽  
Haqqyana Haqqyana ◽  
Setiadi Setiadi ◽  
Mohammad Nasikin
Keyword(s):  
Oil Quality ◽  
Stirred Tank ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Corn Cobs ◽  
Bio Oil

scholarly journals Catalytic Rapid Pyrolysis ofQuercus variabilisover Nanoporous Catalysts

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Hyeon Koo Kang ◽  
In-Gu Lee ◽  
Kyong-Hwan Lee ◽  
Beom-Sik Kim ◽  
Tae Su Jo ◽  
...  
Keyword(s):  
Oil Quality ◽  
Strong Acid ◽  
Abundant Species ◽  
Acid Sites ◽  
Weak Acid ◽  
Nanoporous Materials ◽  
Bio Oil ◽  
Strong Acid Sites ◽  
Rapid Pyrolysis ◽  
Mcm 41

Catalytic rapid pyrolysis ofQuercus variabilis, a Korean native tree species, was carried out using Py-GC/MS. Mesoporous MFI, which has both nanopores and micropores, and three nanoporous materials, Al-MCM-41, Al-SBA-15, andγ-Al2O3, were used as the catalyst. The acid sites of mesoporous MFI were strong Brønsted acid sites, whereas those of nanoporous materials were mostly weak acid sites. The composition of the product bio-oil varied greatly depending on the acid characteristics of the catalyst used. Phenolics were the most abundant species in the bio-oil, followed by acids and furanics, obtained over Al-MCM-41 or Al-SBA-15 with weak acid sites, whereas aromatics were the most abundant species produced over mesoporous MFI with strong acid sites, followed by phenolics. Aromatics, phenolics, and furanics are all important chemicals contributing to the improvement of bio-oil quality.

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