Mechanism and prediction of bed agglomeration during fluidized bed combustion of a biomass fuel: Effect of the reactor scale

2006 ◽  
Vol 123 (3) ◽  
pp. 71-80 ◽  
Author(s):  
Riccardo Chirone ◽  
Francesco Miccio ◽  
Fabrizio Scala
Keyword(s):  
Fluidized Bed ◽  
Biomass Fuel ◽  
Fluidized Bed Combustion ◽  
Bed Agglomeration

Bed Agglomeration Characteristics during Fluidized Bed Combustion of Biomass Fuels

2000 ◽  
Vol 14 (1) ◽  
pp. 169-178 ◽  
Author(s):  
Marcus Öhman ◽  
Anders Nordin ◽  
Bengt-Johan Skrifvars ◽  
Rainer Backman ◽  
Mikko Hupa
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Combustion ◽  
Biomass Fuels ◽  
Bed Agglomeration

scholarly journals Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part B: Achievements in technology implementation

2019 ◽  
Vol 23 (Suppl. 5) ◽  
pp. 1655-1667
Author(s):  
Borislav Grubor ◽  
Dragoljub Dakic ◽  
Stevan Nemoda ◽  
Milica Mladenovic ◽  
Milijana Paprika ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Technology Implementation ◽  
Liquid Fuels ◽  
Thermal Engineering ◽  
Fluidized Bed Combustion ◽  
Biomass Waste ◽  
Technology Application ◽  
Wide Range ◽  
Combustion Technology ◽  
Bed Agglomeration

Paper gives a review of the most important results of extensive and wide-ranging research program on R&D of fluidized bed combustion technology in the Laboratory for Thermal Engineering and Energy of the VINCA Institute of Nuclear Sciences. Paper presents detailed overview of R&D activities from the beginning in the second half of the 1970's up to present days. These activities encompass applied research achievements in the field of characterization of limestones and bed agglomeration and sintering and modeling of overall processes during fluidized bed combustion, all of which have facilitated the R&D of the fluidized bed combustion technology. Attention is also given to steady-state combustion testing of a wide-range of fuels (coals, liquid fuels, biomass, waste solid and liquid materials, etc.) in our fluidized bed combustor and development of original methodology for testing the suitability of fuels for fluidized bed combustion, as well as specific achievements in the area of technology application in Serbia.

Bed Agglomeration During the Fluidized Bed Combustion of Olive Husk

2005 ◽  
Author(s):  
Antonio Cammarota ◽  
Riccardo Chirone ◽  
Fabrizio Scala
Keyword(s):  
Fluidized Bed ◽  
Dynamic Pressure ◽  
Mediterranean Area ◽  
Operating Conditions ◽  
Pressure Gradients ◽  
Fluidized Bed Combustion ◽  
High Propensity ◽  
Olive Husk ◽  
Bed Agglomeration ◽  
High Alkali

The fluidized bed combustion of a biomass residue (olive husk) common in the Mediterranean area has been investigated in a bench scale reactor. The focus of the study was the high propensity of this fuel to give rise to bed agglomeration problems during combustion, as a consequence of the high alkali content of the ash. Bed agglomeration characteristic times as well as temperature and pressure gradients were measured at different operating conditions. In addition, a diagnostic tool based on the measurement of the dynamic pressure signal inside the bed was tested for its capability to predict the bed agglomeration onset.

scholarly journals Combustion temperature analysis in a fluidized-bed reactor by utilizing palm oil biomass for a renewable energy

2021 ◽  
Vol 1195 (1) ◽  
pp. 012005
Author(s):  
Erdiwansyah ◽  
Mahidin ◽  
Husni Husin ◽  
Nasaruddin ◽  
Muhibbuddin ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Fluidized Bed ◽  
Palm Oil ◽  
Oil Palm ◽  
Combustion Temperature ◽  
Palm Kernel ◽  
Biomass Energy ◽  
Biomass Fuel ◽  
Fluidized Bed Combustion ◽  
Maximum Emission

Abstract Biomass from palm oil is a renewable energy source that can be utilized and has very promising availability. Biomass energy is a renewable and sustainable energy that can replace conventional (fossil) fuels. The main objective of the experiment in this article is to analyze the combustion temperature, emissions, and efficiency of palm oil biomass fuel to use and applied in rural/remote areas. The palm oil biomass used in this study is palm kernel shells, empty fruit bunches, oil palm midrib, and oil palm fibers. The experiments in the research carried out in a fluidized-bed combustion chamber designed explicitly with capacities of up to 5 kg of biomass. The results of operations on fluidized-bed when the valve is open 100%, 75%, and 50% with overall palm oil biomass show a high combustion temperature. The highest combustion temperature was recorded in the TC test for 100% open valves with 3 kg biomass of 943°C. While the minimum combustion temperature obtained on TF2 at 50% open valve with 1 kg biomass of 619°C, overall combustion temperatures in this experiment showed high results. The maximum emission for O2 is 20.4% which is obtained at 50% open valve, while for CO2 the maximum emission is produced when 100% open valve is 19.9% with a biomass weight of 1 kg and 3 kg, respectively. The yield for maximum combustion efficiency when using 1 kg of biomass recorded at 50% open valve was 94.9%. While the minimum efficiency of 87.7% is obtained when the valve is 100% open with biomass of 2 kg. As the biomass fuel used in fluidized-bed increases, the combustion temperature also increases significantly.

Bed Agglomeration Characteristics in Fluidized-Bed Combustion of Biomass Fuels Using Olivine as Bed Material

2012 ◽  
Vol 26 (7) ◽  
pp. 4550-4559 ◽  
Author(s):  
Alejandro Grimm ◽  
Marcus Öhman ◽  
Therése Lindberg ◽  
Andreas Fredriksson ◽  
Dan Boström
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Combustion ◽  
Biomass Fuels ◽  
Bed Agglomeration ◽  
Bed Material
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