scholarly journals Influence of Biomass Pyrolysis Temperature, Heating Rate and Type of Biomass on Produced Char in a Fluidized Bed Reactor

2014 ◽  
Vol 4 (2) ◽  
Author(s):  
Toshiyuki Iwasaki ◽  
Seiichi Suzuki ◽  
Toshinori Kojima
Keyword(s):  
Heating Rate ◽  
Fluidized Bed ◽  
Pyrolysis Temperature ◽  
Fluidized Bed Reactor ◽  
Biomass Pyrolysis ◽  
Temperature Heating

Pyrolysis of Imperata cylindrica with Varies Parameters and its Characterization

2015 ◽  
Vol 754-755 ◽  
pp. 1007-1011 ◽  
Author(s):  
M.H. Fatin ◽  
N.Z. Noriman ◽  
M.Z. Salihin ◽  
N.R. Munirah ◽  
Mohd Firdaus Omar
Keyword(s):  
Heating Rate ◽  
Pyrolysis Temperature ◽  
Imperata Cylindrica ◽  
Operational Parameters ◽  
Carbon Yield ◽  
Invasive Weed ◽  
X Ray ◽  
Higher Temperature ◽  
Pyrolysis Experiment ◽  
Temperature Heating

This study was undertaken to characterize pyrolysis of novel biobased invasive weed from ImperataCylindrica. The effects of various temperatures on the pyrolysis stages were characterised. Different operational parameters such as pyrolysis temperature, heating rate temperature are studied. Pyrolysis experiment of groud ImperataCylindrica was performed at temperature 350°C, 550°C and 750°C, and particle size of 0-125μm and heating rate of 5°C/min and 15°C/min. The synthesis carbonaceous was characterized by Fourier Transform Infrared Spectroscopy (FTIR), and different physical properties such as carbon yield, Carbon Hydrogen Nitrogen (CHN analysis), and X-Ray Fluorescence (XRF) was determined. It is observable that pyrolysis at the 15°C / min with 750°C shows that higher temperature produced a higher carbon yield and higher carbon content.

Process Simulation on Fluidized Bed Pyrolysis of Biomass

2011 ◽  
Vol 356-360 ◽  
pp. 2265-2269
Author(s):  
Chao Wang ◽  
Guan Yi Chen ◽  
Wen Chao Ma ◽  
Xin Li Zhu ◽  
Yu Wang
Keyword(s):  
Fluidized Bed ◽  
Process Simulation ◽  
Chemical Process ◽  
Fluidized Bed Reactor ◽  
Mutual Relationship ◽  
Pyrolysis Process ◽  
Biomass Pyrolysis ◽  
Output Change ◽  
Almost All ◽  
Pyrolysis Of Biomass

Aspen Plus is a process software with great functions, almost all chemical process could be described by using it. Based on experimental equipment composition and related experimental results, a simulation model of biomass pyrolysis process occurring in a fluidized bed reactor is successfully developed. Via sensitivity analysis on products’ output change along with reaction temperature’s change and analysis of mutual relationship between fractions of product residues, reaction regulation of biomass pyrolysis process could be received. As a result, this model provides a useful description of the process for producing gas, liquid and solid products, however, receiving more data from experiment is the precondition of the simulation model’s optimization.

Effect of pyrolysis temperature, heating rate, and residence time on rapeseed stem derived biochar

2018 ◽  
Vol 174 ◽  
pp. 977-987 ◽  
Author(s):  
Bin Zhao ◽  
David O'Connor ◽  
Junli Zhang ◽  
Tianyue Peng ◽  
Zhengtao Shen ◽  
...  
Keyword(s):  
Heating Rate ◽  
Residence Time ◽  
Pyrolysis Temperature ◽  
Temperature Heating

Biomass Pyrolysis and Gasification of Varying Particle Sizes in a Fluidized-Bed Reactor

2011 ◽  
Vol 25 (8) ◽  
pp. 3747-3757 ◽  
Author(s):  
Katherine R. Gaston ◽  
Mark W. Jarvis ◽  
Perrine Pepiot ◽  
Kristin M. Smith ◽  
William J. Frederick ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Particle Sizes ◽  
Biomass Pyrolysis

Biomass Pyrolysis in a Fluidized Bed Reactor. Part 2:  Experimental Validation of Model Results

2005 ◽  
Vol 44 (23) ◽  
pp. 8786-8795 ◽  
Author(s):  
Xiaoquan Wang ◽  
Sascha R. A. Kersten ◽  
Wolter Prins ◽  
Wim P. M. van Swaaij
Keyword(s):  
Fluidized Bed ◽  
Experimental Validation ◽  
Fluidized Bed Reactor ◽  
Biomass Pyrolysis

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.

Biomass pyrolysis in a micro-fluidized bed reactor: Characterization and kinetics

2011 ◽  
Vol 168 (2) ◽  
pp. 839-847 ◽  
Author(s):  
Jian Yu ◽  
Changbin Yao ◽  
Xi Zeng ◽  
Shuang Geng ◽  
Li Dong ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Biomass Pyrolysis

CFD Modeling of Algae Flash Pyrolysis in the Batch Fluidized Bed Reactor Including Heat Carrier Particles

2016 ◽  
Vol 14 (1) ◽  
pp. 463-480 ◽  
Author(s):  
Salar Azizi ◽  
Dariush Mowla
Keyword(s):  
Heat Transfer ◽  
Heating Rate ◽  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Cfd Modeling ◽  
Temperature Sensitive ◽  
Cfd Model ◽  
Flash Pyrolysis ◽  
Algae Biomass ◽  
Bio Oil

AbstractThe algae biomass is one of the potential biomass resources for extracting lipid to produce fuel. The off grade or residuals of dehydrated algae particles can be used in pyrolysis reactions to produce fuel or useful chemicals. Due to higher ash contents of algae biomass, pyrolysis process needs an appropriate design of pyrolysis reactor. The heating rate of algae biomass is a key factor for increasing of bio-oil production rate. Instead of heat transfer from reactor walls to the biomass, heated inert particles are added to the conventional fluidized bed reactor to increase heat transfer rate and yield of the bio-oil as called flash pyrolysis. The introduced pyrolysis reaction in the novel heating method of fluidized bed reactor studied numerically. For this purpose, an Eulerian-Eulerian CFD model utilized for modeling of the dehydrated algae pyrolysis in the fluidized bed reactor. The appropriate reaction rate of the algae pyrolysis is based on the heating rate, temperature sensitive activation energy and the reaction selectivity utilized to the algae pyrolysis. In addition, the segregation and density change of the biomass particles investigated in the CFD modeling to analysis mixing of the particles and corresponding heat transfer between the mixed particles. The validation of the CFD model investigated using results of prepared experimental setup.

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