Bio-Oil Production from Fast Pyrolysis of Corn Stalk in a Fluidized Bed

2014 ◽  
Vol 672-674 ◽  
pp. 143-146 ◽  
Author(s):  
Peng Fu ◽  
Zhi He Li ◽  
Xue Yuan Bai ◽  
Wei Ming Yi
Keyword(s):  
Acetic Acid ◽  
Fluidized Bed ◽  
Pyrolysis Temperature ◽  
Fast Pyrolysis ◽  
Chemical Compounds ◽  
Oil Yield ◽  
Corn Stalk ◽  
Bio Oil ◽  
Major Chemical ◽  
Bed Material

Fast pyrolysis of corn stalk was performed at temperatures in the range of 450 - 600 °C in a fluidized bed. The chemical composition of bio-oil was analyzed by GC–MS, and its main properties were determined. The results showed that the bio-oil yield increased with increasing pyrolysis temperature from 450 °C to 500 °C and then declined with a further increase in pyrolysis temperature. The highest bio-oil yield of 43.3wt% was obtained at 500 °C with the dolomite as bed material. The char yield always decreased with the rise of temperature. The major chemical compounds of bio-oil included hydroxyacetone, butanone, acetic acid, propionic acid, ethylene glycol, phenol, etc.

Fast Pyrolysis of Oil Palm Kernel Shell in a Fluidized Bed Reactor: The Effect of Pyrolysis Temperature on the Yields of Pyrolysis Products

2014 ◽  
Vol 625 ◽  
pp. 616-619
Author(s):  
Ali Norizan ◽  
Yoshimitsu Uemura ◽  
Hafizah Ahmad Afif ◽  
Noridah Osman ◽  
Wissam N. Omar ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Fluidized Bed ◽  
Pyrolysis Temperature ◽  
Fast Pyrolysis ◽  
Palm Kernel ◽  
Fluidized Bed Reactor ◽  
Effect Of Temperature ◽  
Internal Diameter ◽  
Palm Kernel Shell ◽  
Benzene Toluene

This study investigates the effect of pyrolysis temperature on the yields of char, organic compounds, water and gas. Fast pyrolysis was carried out in a fluidized bed reactor of 108 mm in internal diameter operated at 400, 450, 500 and 550 °C with nitrogen gas with flow rate of 25 L(NTP)/min. In specific the effect of temperature on the yields of known and unknown organics in bio-oil is discussed. For higher total organics, 500 oC was favorable. But higher phenol and acetic acid yields, 450 oC was preferable. The major organics include acetic acid, phenol and furfural. The minor ones include 2-methylphenol, 4-methylphenol, 4-methylnaphthalene, benzene, toluene and THF.

Fast Pyrolysis of Oil Palm Kernel Shell in a Fluidized Bed Reactor: The Effect of Biomass Size on the Yields of Pyrolysis Products

2014 ◽  
Vol 625 ◽  
pp. 608-611
Author(s):  
Yoshimitsu Uemura ◽  
Ali Norizan ◽  
Hafizah Ahmad Afif ◽  
Norridah Osman ◽  
Wissam N. Omar ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Fluidized Bed ◽  
Fast Pyrolysis ◽  
Palm Kernel ◽  
Fluidized Bed Reactor ◽  
Internal Diameter ◽  
Pyrolysis Products ◽  
Palm Kernel Shell ◽  
Bio Oil ◽  
Benzene Toluene

This study investigates the effect of biomass size on the yields of char, liquid (organic compounds and water) and gas for fast pyrolysis of palm kernel shell (PKS). Fast pyrolysis was carried out in a fluidized bed reactor of 108 mm in internal diameter operated at 450 °C using three different sizes of palm kernel shell (0.325, 0.75 and 1.5 mm). In specific the effect of biomass size on the yields of known and unknown organics in bio-oil was mainly investigated. The major organics include acetic acid, phenol and furfural. The minor ones include 2-methylphenol, 4-methylphenol, 2-methylnaphthalene, benzene, toluene and tetrahydrofurane (THF). Smaller biomass sizes were favorable for higher bio-oil yields.

Effects of Grain Size and Rotational Speed on the Bio-Oil Yield in a Fast Pyrolysis Reactor Employing a Single Tapered Screw Extruder

2011 ◽  
Vol 347-353 ◽  
pp. 153-156
Author(s):  
Yen Chang Chen ◽  
Yung Ning Pan
Keyword(s):  
Grain Size ◽  
Rotational Speed ◽  
Pyrolysis Temperature ◽  
Current System ◽  
Fast Pyrolysis ◽  
Oil Yield ◽  
Screw Extruder ◽  
Grain Sizes ◽  
Bio Oil ◽  
Pyrolysis Reactor

The effects of process parameters of biomass grain size (ranging from 0.425 to 3.35mm), rotational speed (ranging from 20 to 60rpm) and the pyrolysis temperature (ranging from 400 to 550 oC) on the yield of bio-oil were investigated in this study by using a fast pyrolysis reactor with a single tapered screw extruder. This study gives the optimal pyrolysis temperatures and rotational speeds for different grain sizes to achieve peak bio-oil yield. The results indicate that higher feed rates are required for larger grain sizes to achieve peak bio-oil yields. For instance, a 20rpm rotational speed is for 0.425~1.18mm grain sizes (50~57% bio-oil yield), while a 40rpm rotational speed is for 1.7~3.35mm grain sizes (56~60% bio-oil yield). This implies that the productivity of bio-oil can be significantly increased in the current system. For the case of 2.5~3.35mm grain size, which corresponds to an optimal rotational speed of 40rpm, the production rate was estimated to be around 4kg/h.

scholarly journals Bio-Oil Characterizations of Spirulina Platensis Residue (SPR) Pyrolysis Products for Renewable Energy Development

2020 ◽  
Vol 849 ◽  
pp. 47-52
Author(s):  
Siti Jamilatun ◽  
Aster Rahayu ◽  
Yano Surya Pradana ◽  
Budhijanto ◽  
Rochmadi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Spirulina Platensis ◽  
Pyrolysis Temperature ◽  
Renewable Energy Sources ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Oil Yield ◽  
Optimum Temperature ◽  
Pyrolysis Products ◽  
Bio Oil

Nowadays, energy consumption has increased as a population increases with socio-economic developments and improved living standards. Therefore, it is necessary to find a replacement for fossil energy with renewable energy sources, and the potential to develop is biofuels. Bio-oil, water phase, gas, and char products will be produced by utilizing Spirulina platensis (SPR) microalgae extraction residue as pyrolysis raw material. The purpose of this study is to characterize pyrolysis products and bio-oil analysis with GC-MS. Quality fuel is good if O/C is low, H/C is high, HHV is high, and oxygenate compounds are low, but aliphatic and aromatic are high. Pyrolysis was carried out at a temperature of 300-600°C with a feed of 50 grams in atmospheric conditions with a heating rate of 5-35°C/min, the equipment used was a fixed-bed reactor. The higher the pyrolysis temperature, the higher the bio-oil yield will be to an optimum temperature, then lower. The optimum temperature of pyrolysis is 550°C with a bio-oil yield of 23.99 wt%. The higher the pyrolysis temperature, the higher the H/C, the lower O/C. The optimum condition was reached at a temperature of 500°C with the values of H/C, and O/C is 1.17 and 0.47. With an increase in temperature of 300-600°C, HHV increased from 11.64 MJ/kg to 20.63 MJ/kg, the oxygenate compound decreased from 85.26 to 37.55 wt%. Aliphatics and aromatics increased, respectively, from 5.76 to 36.72 wt% and 1.67 to 6.67 wt%.

Catalytic Steam Reforming of Fast Pyrolysis Bio-Oil in Fixed Bed and Fluidized Bed Reactors

2010 ◽  
Vol 33 (12) ◽  
pp. 2021-2028 ◽  
Author(s):  
P. Lan ◽  
Q. Xu ◽  
M. Zhou ◽  
L. Lan ◽  
S. Zhang ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Steam Reforming ◽  
Fast Pyrolysis ◽  
Fixed Bed ◽  
Fluidized Bed Reactors ◽  
Bio Oil ◽  
Catalytic Steam Reforming

scholarly journals BIO-OIL FROM RUBBER WOOD: EFFECTS OF UPGRADING CONDITIONS

2020 ◽  
Vol 58 (5) ◽  
pp. 604
Author(s):  
Hong Nam Nguyen ◽  
Bùi Văn Đức ◽  
Ngoc Linh Vu ◽  
Hong Nam Nguyen ◽  
Thi Thu Ha Vu ◽  
...  
Keyword(s):  
Product Quality ◽  
Hevea Brasiliensis ◽  
Fast Pyrolysis ◽  
Oil Production ◽  
Experimental Results ◽  
Oil Yield ◽  
Heating Value ◽  
Rubber Wood ◽  
Bio Oil

Despite its prominent potential, the use of rubber wood (Hevea brasiliensis) for bio-oil production has not been fully investigated. This study reported experimental results of the bio-oil production and upgrading from rubber wood using fast pyrolysis technology. The effects of catalyst nature (vermiculite and dolomite), upgrading temperature and bio-oil/catalyst ratio on the product quality were deeply investigated. The results showed that dolomite was suitable to be used as a catalyst for bio-oil upgrading. At 600 °C and a bio-oil/catalyst ratio of 1:1, the bio-oil yield was maximized, while at 400 °C and a ratio of 1:3, the bio-oil heating value was maximized. Depending on usage purposes, a yield-oriented, heating value-oriented or in-between bio-oil upgrading solution could be considered.

Assessment of miscanthus biomass (Miscanthus sacchariflorus) for conversion and utilization of bio-oil by fluidized bed type fast pyrolysis

Energy ◽  
2014 ◽  
Vol 76 ◽  
pp. 284-291 ◽  
Author(s):  
Jae-Young Kim ◽  
Shinyoung Oh ◽  
Hyewon Hwang ◽  
Youn-Ho Moon ◽  
Joon Weon Choi
Keyword(s):  
Fluidized Bed ◽  
Fast Pyrolysis ◽  
Miscanthus Sacchariflorus ◽  
Bio Oil

Bed Agglomeration during Bio-oil Fast Pyrolysis in a Fluidized-Bed Reactor

2018 ◽  
Vol 32 (3) ◽  
pp. 3608-3613 ◽  
Author(s):  
Wenran Gao ◽  
Mingming Zhang ◽  
Hongwei Wu
Keyword(s):  
Fluidized Bed ◽  
Fast Pyrolysis ◽  
Fluidized Bed Reactor ◽  
Bio Oil ◽  
Bed Agglomeration
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