scholarly journals Effect of Exchangeable Cation in Clays on the Yield and Quality of the Bio-Oil during Microwave Pyrolysis of Cellulose

2020 ◽  
Vol 1 (3) ◽  
pp. 315-324
Author(s):  
Alisa Doroshenko ◽  
Ihor Pylypenko ◽  
Simona Gromovaite ◽  
James Clark ◽  
Vitaliy Budarin
Keyword(s):  
Oil Yield ◽  
Conventional Heating ◽  
Exchangeable Cation ◽  
Pyrolysis Oil ◽  
Heating Rates ◽  
Microwave Pyrolysis ◽  
Yield And Quality ◽  
Bio Oil ◽  
Cation Nature

Bio-oil (pyrolysis oil) is an essential feedstock for the production of renewable fossil-free fuels and valuable chemicals. Enhancement of the pyrolysis oil yield and its quality are significant challenges for an efficient and sustainable biorefinery. Here, we report the microwave (MW)-assisted noncatalytic pyrolysis of cellulose, as a green and controllable alternative to conventional heating, in the presence of eco-friendly Li-, Na-, K-, Mg-, Ca- and Ba-bentonites. The detailed analysis of the MV heating traces demonstrates that the bentonite MW activity significantly depends on the presence of internal water. The intensity of this interaction is controlled by the cation nature reduced in the order: Li+ > Na+ > K+ and Mg2+ > Ca2+ > Ba2+. A unique experimental design for the MW-assisted pyrolysis of cellulose in the presence of Li-doped clays helps to increase the bio-oil yield to 37.8% with high selectivity towards the commercially useful levoglucosan (purity: 39.36%). The combination of an alternative green heating method and environmentally friendly bentonites can be used many times without recycling. We believe that the improved yields of bio-oil are due to: (i) high MW activity of bentonites, which conventionally increases the heating rates of cellulose; and (ii) production of water by hydrophilic clay minerals, favouring depolymerisation of cellulose.

Effects of Growth Regulator Application on Growth, Flower, Oil Yield, and Quality of Clary Sage (Salvia sclareaL.)

2008 ◽  
Vol 14 (1-2) ◽  
pp. 29-36 ◽  
Author(s):  
Virendra Singh ◽  
Ruchi Sood ◽  
Kulasekaran Ramesh ◽  
Bikram Singh
Keyword(s):  
Growth Regulator ◽  
Oil Yield ◽  
Yield And Quality

Analysis of Bio-Oil Produced by Co-Pyrolysis of Mahua Seed and Polystyrene

2015 ◽  
Vol 787 ◽  
pp. 771-775
Author(s):  
Debalaxmi Pradhan ◽  
R.K. Singh
Keyword(s):  
Heating Rate ◽  
Fossil Fuel ◽  
Synergetic Effect ◽  
Blend Ratio ◽  
Yield And Quality ◽  
Bio Oil ◽  
Quality Of Products ◽  
Temperature Heating

TheProduction of biofuel from biomass sources is believed to reduce the reliance of fossil fuel and its cost. This investigation was aimed to produce and characterize the bio-oil obtained from co-pyrolysis. Two different feed stocks were used for co-pyrolysis; one is Mahua seed (MS) and the other one is Polystyrene (PS). The effect in addition of plastic to biomass in pyrolysis process were investigated on the yield and quality of products. Experiments were conducted in a semi-batch pyrolysis reactor under various parameters of temperature, heating rate and blending ratio. The results indicated that a temperature of 525 °C, and blend ratio of 1:1is maximumwith a heating rate of 20 °C/min. The yield of bio-oil obtained from the co-pyrolysis was found to be approximately 71%, which was higher about 22% than that of yield obtained from pyrolysis of Mahua seed (MS) alone. Further the bio-oil was characterized using different spectroscopic and chromatographic analyses. The analysis of the results for characterization of bio-oil indicated that the synergetic effect increased the bio-oil yield and its quality.

Ethanol addition during aqueous phase recirculation for further improving bio-oil yield and quality

2020 ◽  
Vol 262 ◽  
pp. 114550 ◽  
Author(s):  
Xinfei Chen ◽  
Xiaoqian Ma ◽  
Xianghao Zeng ◽  
Chupeng Zheng ◽  
Xiaoluan Lu
Keyword(s):  
Aqueous Phase ◽  
Oil Yield ◽  
Yield And Quality ◽  
Bio Oil ◽  
Ethanol Addition

Effect of saline water on oil yield and quality of a high oleic sunflower (Helianthus annuus L.) hybrid

2004 ◽  
Vol 21 (2) ◽  
pp. 267-272 ◽  
Author(s):  
Z. Flagella ◽  
M.M. Giuliani ◽  
T. Rotunno ◽  
R. Di Caterina ◽  
A. De Caro
Keyword(s):  
Helianthus Annuus ◽  
Saline Water ◽  
Oil Yield ◽  
Helianthus Annuus L ◽  
High Oleic ◽  
Yield And Quality

Co-Cracking of Bio-Oil Model Compound Mixture and Ethanol with Different Blending Ratios for Bio-Gasoline Production

2014 ◽  
Vol 986-987 ◽  
pp. 30-33
Author(s):  
Li Zhang ◽  
Qin Jie Cai ◽  
Shu Rong Wang
Keyword(s):  
Aromatic Hydrocarbons ◽  
Model Compound ◽  
Complex Model ◽  
Model Compounds ◽  
Conversion Yield ◽  
Yield And Quality ◽  
Bio Oil ◽  
Aliphatic And Aromatic Hydrocarbons ◽  
Reactant Conversion

Since the composition of crude bio-oil was complex, model compounds were usually used in the study of cracking to simulate the actual bio-oil. However, the cracking of pure model compound mixture generated an inferior oil phase which had a high content of oxygenated byproducts. When ethanol was adopted as the co-reactant, the reactant conversion, yield and quality of oil phase were obviously improved. The conversions of the reactants were 100% and the selectivity of the oil phase was 31.5wt% when the concentration of model compound mixture in the feed reached 30%. Meanwhile, the oil phase also had a superior quality which was entirely composed of aliphatic and aromatic hydrocarbons.

The Impact of Wilt Disease on Oil Yield and Quality of Two Cultivars of Rose-Scented Geranium(PelargoniumSpecies)

1999 ◽  
Vol 11 (6) ◽  
pp. 769-775 ◽  
Author(s):  
Bhaskaruni R. Rajeswara Rao ◽  
Arun K. Bhattacharya ◽  
Harikesh B. Singh ◽  
Gopal R. Mallavarapu
Keyword(s):  
Wilt Disease ◽  
Oil Yield ◽  
Yield And Quality ◽  
The Impact

scholarly journals The effectiveness of fertilizer for sunflower on typical black soil of the Tambov region

2021 ◽  
Vol 187 (3) ◽  
pp. 29-34
Author(s):  
O.M. Ivanova ◽  
◽  
S.A. Erofeev ◽  
S.V. Vetrova ◽  
M.R. Makarov ◽  
...  
Keyword(s):  
Agricultural Production ◽  
Seed Treatment ◽  
Black Soil ◽  
Oil Yield ◽  
Mineral Fertilizers ◽  
Vegetative Period ◽  
Yield And Quality ◽  
Federal Research ◽  
Different Types

Currently, sunflower is the main oil crop in the Tambov region. The most important task of modern agricultural production is the use of technologies that increase the yield and quality of field crops. Data on seed and oil yield of sunflower are very important when choosing different types of mineral fertilizers. In this regard, the purpose of our research was to study the effect of various doses, methods and terms of application of macro- and microfertilizers on yield, crop quality and oil yield of sunflower in a link of the 6-year crop rotation: fallow – winter wheat – corn (for grain) – barley – sunflower – spring wheat. The research was conducted at the Tambov Research Institute of Agriculture – a branch of the I.V. Michurin Federal Research Center, which is located in the Tambov region. On typical black soil, application of both traditional mineral fertilizers (N16P16K16) for plowing, and liquid mineral fertilizers (Megamix) during pre-sowing treatment and for plants treatment during vegetative period contributes to obtaining an additional seed and oil yields. For 2014–2020, the highest seed and oil yields were obtained in variant (5) with N30P30K30 for plowing + seed treatment with Megamix (2.0 l/t) and amounted to 2.84 t/ha and 1324 kg/ha, respectively. The fat content varied depending on the variant of the experiment. The maximum indicator of 53.6% was in the variant with the application of N30P30K30. But due to the lower seed yield, the oil yield amounted to 1.21 t/ha. All variants for seed and oil yields were superior to the control one (without fertilizers).

scholarly journals Erratum to: Heterosis for seed, oil yield and quality of some different hybrids sunflower

OCL ◽  
2021 ◽  
Vol 28 ◽  
pp. 31
Author(s):  
Mohamed A. Ahmed ◽  
Tamer H.A. Hassan ◽  
Hamdy A. Zahran
Keyword(s):  
Seed Oil ◽  
Oil Yield ◽  
Yield And Quality
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