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.

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.

Bio-oil from Sawdust: Effect of Operating Parameters on the Yield and Quality of Pyrolysis Products

2011 ◽  
Vol 25 (9) ◽  
pp. 4145-4154 ◽  
Author(s):  
Ebrahim Salehi ◽  
Jalal Abedi ◽  
Thomas Harding
Keyword(s):  
Operating Parameters ◽  
Pyrolysis Products ◽  
Yield And Quality ◽  
Bio Oil

A green method to increase yield and quality of bio-oil: ultrasonic pretreatment of biomass and catalytic upgrading of bio-oil over metal (Cu, Fe and/or Zn)/γ-Al2O3

RSC Advances ◽  
2015 ◽  
Vol 5 (101) ◽  
pp. 83494-83503 ◽  
Author(s):  
Surachai Karnjanakom ◽  
Guoqing Guan ◽  
Bayu Asep ◽  
Xiao Du ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Green Method ◽  
Ultrasonic Pretreatment ◽  
Catalytic Upgrading ◽  
Yield And Quality ◽  
Bio Oil

A green method is developed to increase the yield and quality of bio-oil by ultrasonic pretreatment of biomass followed by in situ catalytic upgrading of bio-oil over metal (Cu, Fe and/or Zn)/γ-Al2O3.

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.

scholarly journals Aromatics Production With Cobalt-Modified Ultra-Stable Y Zeolites As Catalysts In Catalytic Pyrolysis of Ginkgo Biloba Residue

2021 ◽  
Author(s):  
Zhenwei Yu ◽  
Khurram yousaf ◽  
Fuyang Tian ◽  
Jialin Hou
Keyword(s):  
Aromatic Hydrocarbons ◽  
Ginkgo Biloba ◽  
Catalytic Pyrolysis ◽  
Gas Production ◽  
Efficient Production ◽  
Pyrolysis Products ◽  
Y Zeolites ◽  
Bio Oil ◽  
Pyrolysis Reactor

Abstract The current research studied the performance of novel and cheap catalysts, ultra-stable Y zeolites (USY) and cobalt-modified USY for the efficient production of aromatics from the ginkgo Biloba residue (GBR) using a pyrolysis reactor. Cobalt-modified USY improved the quality of the pyrolysis products e.g. removed unwanted impurities from bio-oil, increased the yield of gases, and overall boosted the GBR conversion. Under the action of USY modified with cobalt, the yield of CO, CH4, and CO2 in the gas production increased significantly, while the yield of H2 was dropped. The selectivity of naphthalene and 1-methylnaphthalene gradually decreased. The composition of aromatic hydrocarbons was reduced, while the content and selectivity ratios of toluene and xylene were increased. This study describes a high-value method using GBR, which could be used as a sustainable resource for the production of hydrocarbons, especially for the preparation of high-quality toluene and phenols.

scholarly journals Optimizing Yield and Quality of Bio-Oil: A Comparative Study of Acacia tortilis and Pine Dust

Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 551
Author(s):  
Gratitude Charis ◽  
Gwiranai Danha ◽  
Edison Muzenda
Keyword(s):  
Pyrolysis Temperature ◽  
Scale Up ◽  
Maximum Yield ◽  
Raw Material ◽  
Acacia Tortilis ◽  
Yield And Quality ◽  
Oil Fraction ◽  
Bio Oil ◽  
Condenser Temperature

We collected pine dust and Acacia tortilis samples from Zimbabwe and Botswana, respectively. We then pyrolyzed them in a bench-scale plant under varying conditions. This investigation aimed to determine an optimum temperature that will give result to maximum yield and quality of the bio-oil fraction. Our experimental results show that we obtain the maximum yield of the oil fraction at a pyrolysis temperature of 550 °C for the acacia and at 500 °C for the pine dust. Our results also show that we obtain an oil fraction with a heating value (HHV) of 36.807 MJ/kg using acacia as the feed material subject to a primary condenser temperature of 140 °C. Under the same pyrolysis temperature, we obtain an HHV value of 15.78 MJ/kg using pine dust as the raw material at a primary condenser temperature of 110 °C. The bio-oil fraction we obtain from Acacia tortilis at these condensation temperatures has an average pH value of 3.42 compared to that of 2.50 from pine dust. The specific gravity of the oil from Acacia tortilis is 1.09 compared to that of 1.00 from pine dust. We elucidated that pine dust has a higher bio-oil yield of 46.1% compared to 41.9% obtained for acacia. Although the heavy oils at condenser temperatures above 100 °C had good HHVs, the yields were low, ranging from 2.8% to 4.9% for acacia and 0.2% to 12.7% for pine dust. Our future work will entail efforts to improve the yield of the heavy oil fraction and scale up our results for trials on plant scale capacity.

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