Recent advances on catalytic deoxygenation of residues for bio-oil production: An overview

Costa, Ana Alice Farias da; Pires, Luíza Helena de Oliveira; Padrón, Daily Rodríguez; Balu, Alina M.; Filho, Geraldo Narciso da Rocha; Luque, Rafael; Nascimento, Luís Adriano Santos do

doi:10.1016/j.mcat.2021.112052

Cited by 22 publications

(7 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of an externally heated rotary kiln to pyrolyze RHA resulted in the optimal pyrolysis temperature of around 450 °C, and the bio-oil produced had a high heating value and low acidity . The investigation on the use of microwave-assisted pyrolysis to produce bio-oil from RHA uncovered that the technique could significantly improve the bio-oil yield and reduce energy consumption compared to conventional pyrolysis . The research on the effect of adding a small amount of calcium oxide (CaO) on the pyrolysis of RHA resulted that the addition of CaO significantly increased the bio-oil yield and improved the quality, reducing the acidity and increasing the heating value .…”

Section: Resultsmentioning

confidence: 99%

“… 40 The investigation on the use of microwave-assisted pyrolysis to produce bio-oil from RHA uncovered that the technique could significantly improve the bio-oil yield and reduce energy consumption compared to conventional pyrolysis. 41 The research on the effect of adding a small amount of calcium oxide (CaO) on the pyrolysis of RHA resulted that the addition of CaO significantly increased the bio-oil yield and improved the quality, reducing the acidity and increasing the heating value. 42 The exploration of catalytic pyrolysis to produce bio-oil from RHA using a zeolite catalyst discovered that the catalyst significantly increased the bio-oil yield and improved its quality, reducing the acidity and increasing the heating value.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Response Surface Methodology for the Synthesis and Characterization of Bio-Oil Extracted from Biomass Waste and Upgradation Using the Rice Husk Ash Catalyst

et al. 2023

View full text Add to dashboard Cite

Rice husk ash (RHA), a low-cost biomaterial, was utilized to form bio-oil from pyrolysis in a batch-stirred reactor, followed by its upgradation using the RHA catalyst. In the present study, the effect of temperature (ranging from 400 to 480 °C) on bio-oil production produced from RHA was studied to obtain the maximum bio-oil yield. Response surface methodology (RSM) was applied to investigate the effect of operational parameters (temperature, heating rate, and particle size) on the bio-oil yield. The results showed that a maximum bio-oil output of 20.33% was obtained at 480 °C temperature, 80 °C/min heating rate, and 200 μm particle size. Temperature and heating rate positively impact the bio-oil yield, while particle size has little effect. The overall R 2 value of 0.9614 for the proposed model proved in good agreement with the experimental data. The physical properties of raw bio-oil were determined, and 1030 kg/m 3 density, 12 MJ/kg calorific value, 1.40 cSt viscosity, 3 pH, and 72 mg KOH/g acid value were obtained, respectively. To enhance the characteristics of the bio-oil, upgradation was performed using the RHA catalyst through the esterification process. The upgraded bio-oil stemmed from a density of 0.98 g/cm 3 , an acid value of 58 mg of KOH/g, a calorific value of 16 MJ/kg, and a viscosity 10.5 cSt, respectively. The physical properties, GC−MS and FTIR, showed an improvement in the bio-oil characterization. The findings of this study indicate that RHA can be used as an alternative source for bio-oil production to create a more sustainable and cleaner environment.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Response Surface Methodology for the Synthesis and Characterization of Bio-Oil Extracted from Biomass Waste and Upgradation Using the Rice Husk Ash Catalyst

et al. 2023

View full text Add to dashboard Cite

show abstract

“…6 To further utilize the formic acid used, an acid catalyst such as sulphuric acid is required to form the performic acid. 7 Although numerous references exist in the technical literature regarding the epoxidation of oleic acid, unfortunately, there is a lack of study on waste cooking oil-based palm oil as it is not fully utilized and considered as waste. Hence, epoxidation can be carried out by different methods depending on the raw materials, epoxidation reagents, catalysts, and solvents.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach for Sunflower Oil Based Polyol Production by Ring Opening of Epoxidized Linoleic Acid

Azmi

Kadir

Sharif

et al. 2023

Journal of Elastomers & Plastics

View full text Add to dashboard Cite

In numerous chemical industrial sectors, the utilization of epoxidized vegetable oil has emerged as a prospective growing market for polymer development. The experiment was to discover the effectiveness of formic acid to sunflower oil molar ratio and catalysts type toward epoxidation reaction for polyols formation. Hydrolysis of an epoxide involved the reaction of an epoxide with water, resulting in the formation of a diol. Sunflower-based epoxide was carried out by in situ using performic acid mechanism with the temperature of 80°C. The optimum relative conversion to oxirane was obtained within 50 min which is 41.37% from 1:1 molar ratio of formic acid to sunflower oil and natural zeolite as a catalyst. The genetic algorithm was used to find the optimal set of parameters in the mathematical model, and MATLAB is used to implement the numerical integration and the optimization process. The kinetic rate, k parameters obtained k11 = 0.169, k12 = 33.072, k2 = 5.244 for epoxidation palm oil, and k3 = 3.89 × 10−5 in degradation process.

show abstract

Section: Introductionmentioning

confidence: 99%

“…The oxidative cleavage process uses ozonolysis, but may also be accomplished using ruthenium catalysts and composites of ruthenium-vanadium heterogenized and others [16][17][18]. The deoxygenation of fatty compounds is an efficient route for green diesel production using heterogenized catalysts supported on zeolites and others [19][20][21]. Hypercrosslinked polystyrenes (HPS), or functionalized polystyrenes (such as amine-functionalized), are useful in the stabilization of metallic nanoparticles and clusters [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Doped Ruthenium/Hypercrosslinked Polystyrene (HPS) Catalysts in the Modification of Fatty Acid Methyl Esters

et al. 2023

View full text Add to dashboard Cite

The modification of fatty substrates using heterogeneous catalysts have extensive industrial application and has an emphatic position in a sustainable context. Herein ruthenium, nickel, cobalt and copper-doped ruthenium, supported on hypercrosslinked polystyrene (HPS) catalysts were prepared by wet impregnation, characterized and applied on the modification of canola fatty acid methyl esters (FAME). The characterization showed a dispersive effect of doping metals over the ruthenium particles, the presence of acid sites and overall surface morphology, which allows targeting potential applications. The chosen modifications consisted of hydrogenation, hydroformylation, oxidative cleavage and deoxygenation, resulting in superb catalytic activities of over 99% conversions for hydrogenation and deoxygenation. The simplicity of the canola FAME composition allows the understanding of the catalytic processes and allows the upscale of more complex FAME matrixes. Finally, the obtained data stimulates further optimization studies for each application with a variation on the catalysts and the usage of residual fatty substrates, greatly enhancing the sustainability profile of the systems.

show abstract

Recent advances on catalytic deoxygenation of residues for bio-oil production: An overview

Cited by 22 publications

References 79 publications

Response Surface Methodology for the Synthesis and Characterization of Bio-Oil Extracted from Biomass Waste and Upgradation Using the Rice Husk Ash Catalyst

Response Surface Methodology for the Synthesis and Characterization of Bio-Oil Extracted from Biomass Waste and Upgradation Using the Rice Husk Ash Catalyst

A Novel Approach for Sunflower Oil Based Polyol Production by Ring Opening of Epoxidized Linoleic Acid

Doped Ruthenium/Hypercrosslinked Polystyrene (HPS) Catalysts in the Modification of Fatty Acid Methyl Esters

Contact Info

Product

Resources

About