scholarly journals The effect of volatile content of fuels on nitric oxide emission of fluidized bed combustor for carbonaceous materials.

1983 ◽  
Vol 16 (1) ◽  
pp. 76-77 ◽  
Author(s):  
TAKEHIKO FURUSAWA ◽  
SHUNICHI ISHIKAWA ◽  
SEIICHI SUDO ◽  
DAIZO KUNII
Keyword(s):  
Nitric Oxide ◽  
Fluidized Bed ◽  
Volatile Content ◽  
Carbonaceous Materials ◽  
Nitric Oxide Emission ◽  
Fluidized Bed Combustor

A Simulation Study for Fluidized Bed Combustion of Petroleum Coke With CO2 Capture

2003 ◽  
Author(s):  
Jinsheng Wang ◽  
Edward J. Anthony ◽  
J. Carlos Abanades
Keyword(s):  
Power Generation ◽  
Fluidized Bed ◽  
Petroleum Coke ◽  
Co2 Capture ◽  
Low Cost ◽  
Volatile Content ◽  
Fluidized Bed Combustion ◽  
High Carbon ◽  
Overall Efficiency ◽  
Fluidized Bed Combustor

Petroleum coke is regarded as a difficult fuel because of its high sulphur content and low volatile content. However, its low price and increased production, means that there is a powerful economic stimulus to use it for power generation. In this work, a process simulation has been performed as part of a feasibility study on the utilization of petroleum coke for power generation with low-cost CO2 capture. The proposed system employs a pressurized fluidized bed combustor and a calciner. In the combustor itself, the petroleum coke is burned and most of the CO2 generated is captured by a CaO sorbent under pressurized condition to form CaCO3. The CaCO3 is transported into the calciner where limited proportion of the petroleum coke is burned with pure O2, and calcines the spent sorbent back into CaO and CO2. A nearly pure CO2 stream is obtained from the calciner for subsequent disposal or utilization. The predicted overall efficiency of the combustion is near 40%. The proposed system would also be suitable for firing other high carbon and low ash fuel, such as anthracite.

The Effect of Coal Type on Thermal Balance in a Dense Phase of a Circulating Fluidized Bed Combustor

2003 ◽  
Author(s):  
Mirko S. Komatina ◽  
Xin Liu ◽  
Franz Winter
Keyword(s):  
Fluidized Bed ◽  
Coal Batch ◽  
Circulating Fluidized Bed ◽  
Temperature Drop ◽  
Thermal Balance ◽  
Experimental Investigations ◽  
Volatile Content ◽  
Dense Phase ◽  
Fluidized Bed Combustor ◽  
Coal Type

The results of experimental investigations of the effect of coal type on the thermal balance during early stages in a dense phase of a circulating fluidized bed combustor (CFBC) are presented in this paper. The experimental investigations were performed in a laboratory-scale CFBC. Five coals with three size classes (small 0.5–0.63 mm, medium 2–3.1 mm, and large 7.1–8 mm) were tested. The electrical heating system was used to ensure that the riser has a constant temperature (850°C) before the experiments. Mean velocity was 1.2 m/s. Oxygen concentration was 5%. During the experiments the temperature in the dense phase in the lower part of the riser and the gas concentrations of CO and CO2 were measured continuously. On the temperature histories measured, it can be seen that after feeding the coal batch into the hot CFBC, the temperature in the dense phase decreases, after reaching a minimum value and increases back again. The experimental results were compared to each other on the basis of the maximum temperature drop after feeding the coal batch. It was concluded that the temperature drop depends slightly on coal size and mainly on coal type and its mechanical and physical structure. The temperature drop slightly increases when the particle size of the coal batch increases. The strongest influence on the temperature drop in the dense phase of the CFBC shows the volatile content of the original coal and the temperature drop is directly proportional to the volatile content.

scholarly journals ABATEMENT OF NITRIC OXIDE EMISSION IN FLUIDIZED BED COMBUSTION OF COAL

1978 ◽  
Vol 11 (5) ◽  
pp. 377-384 ◽  
Author(s):  
TAKEHIKO FURUSAWA ◽  
TETSUZO HONDA ◽  
JUNICH TAKANO ◽  
DAIZO KUNII
Keyword(s):  
Nitric Oxide ◽  
Fluidized Bed ◽  
Fluidized Bed Combustion ◽  
Nitric Oxide Emission

Possible Role of Nitric Oxide Emission from Bird Embryos

2004 ◽  
Vol 15 (3) ◽  
pp. 105-106 ◽  
Author(s):  
A. Ar ◽  
O. Ifergan ◽  
A. Feldman ◽  
L. Zelik ◽  
A. Reizis
Keyword(s):  
Nitric Oxide ◽  
Nitric Oxide Emission

High resolution measurements reveal abiotic and biotic mechanisms of elevated nitric oxide emission after wetting dry soil

2021 ◽  
pp. 108316
Author(s):  
Eric W. Slessarev ◽  
Aral C. Greene ◽  
Peter M. Homyak ◽  
Samantha C. Ying ◽  
Joshua P. Schimel
Keyword(s):  
Nitric Oxide ◽  
High Resolution ◽  
Nitric Oxide Emission ◽  
Dry Soil
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