scholarly journals Operating experience of Fluidized-bed boiler for Paper Sludge.

1995 ◽  
Vol 49 (1) ◽  
pp. 93-100
Author(s):  
M. Kubota
Keyword(s):  
Fluidized Bed ◽  
Operating Experience ◽  
Paper Sludge

Operating Experience of Paper Sludge Incinerator

2006 ◽  
Vol 60 (1) ◽  
pp. 106-112
Author(s):  
Minoru Fukuda ◽  
Hidenori Mochizuki ◽  
Hitoshi Kondo
Keyword(s):  
Operating Experience ◽  
Paper Sludge

The effect of hydrothermal treatment on attrition during the fluidized bed combustion of paper sludge

2015 ◽  
Vol 140 ◽  
pp. 57-66 ◽  
Author(s):  
Chinnathan Areeprasert ◽  
Antonio Coppola ◽  
Massimo Urciuolo ◽  
Riccardo Chirone ◽  
Kunio Yoshikawa ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Hydrothermal Treatment ◽  
Paper Sludge ◽  
Fluidized Bed Combustion

Commissioning and Early Operating Experience Point Aconi Circulating Fluidized Bed, Cape Breton, Nova Scotia

1995 ◽  
Vol 13 (4) ◽  
pp. 393-404
Keyword(s):  
Nova Scotia ◽  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Operating Experience ◽  
Current Status ◽  
Site Testing ◽  
Cape Breton ◽  
Start Up ◽  
Commercial Operation

The paper gives a summary description of the commissioning and early operating experience on the Circulating Fluidized Bed Unit at Nova Scotia Power Incorporated's Point Aconi Generating Plant. The experience quoted is limited to the boiler and auxiliaries including ash handling. Both coal and limestone characteristics have presented some unique challenges to the start-up of this unit and have required major on site testing and some field modifications to address them. The current status of the unit is given with a description of the on-going activities that will follow to complete the final commercial operation of the plant.

Ceramic Candle Filter Performance at the Grimethorpe (UK) Pressurized Fluidized Bed Combustor

1992 ◽  
Vol 114 (2) ◽  
pp. 371-379 ◽  
Author(s):  
J. Stringer ◽  
A. J. Leitch
Keyword(s):  
Steady State ◽  
Pressure Drop ◽  
Fluidized Bed ◽  
Porous Ceramic ◽  
Operating Experience ◽  
Filter Element ◽  
Reverse Direction ◽  
Process Conditions ◽  
Filter Performance ◽  
Fluidized Bed Combustor

A pilot hot-gas particulate removal system, based on positive porous ceramic filters, has been tested on the Grimethorpe Pressurized Fluidized Bed Combustor facility. The filters are in the form of closed-ended tubes, 1.5 m long: These are generally called “candles.” The dust accumulates on the outside of the candles, and is periodically removed by a pulse of air into the candle interior, which then flows outward through the candle wall in the reverse direction to the normal flow of the combustion gas. The EPRI system contained a maximum of 130 candles, which is approximately equivalent to the requirement for 7 MW(e) capacity, depending on the filter-operating parameters. The filter unit operated for a total of 860 h under PFBC conditions, of which 790 h were at defined process conditions, typically 850°C and 10 bar. The amount of gas flowing through each filter element was varied, and the time between cleaning pulses also was varied. The pressure drop through each filter element rose as the dust accumulated on the outer wall, and recovered after the cleaning pulse. However, the post-cleaning pressure drop does not recover to the original clean candle value, but increases with time. It is believed that a steady-state value is attained, but the exposure in the Grimethorpe test series was insufficient to establish this unequivocally. During the test, five candles failed. This appears to have been due to mechanical shock, as a result of candles lifting because of excessive pressure differentials across their support plate, and dropping back. The failures are not believed to be intrinsic to the technology. However, in addition a reduction in the strength of the candles with time of exposure was observed. This might also attain a steady-state value, but this too could not be established on the basis of the tests reported in this paper. This is clearly a matter of importance, and further work will be required to determine the suitability of the clay-bonded silicon carbide medium used in these tests for this application. A number of deficiencies in the design of the unit emerged with the operating experience, and suggestions have been made for improvements. However, it is clear that further work on design optimization is required. The pulse-cleaning air usage in the tests was greater than would be economically acceptable in a practical system. Further work needs to be done to optimize the cleaning cycle. Overall, the test was very successful, and, when operating properly, the filters removed essentially all of the dust in the gas exiting from the combustor. Apart from the issues with the candle strength and the pulse-cleaning air usage, the other problems were not believed to be of major importance in the further development of the technology. This paper will summarize the test results, emphasizing the problems of candle durability and the pulse-cleaning system.

Fluidized bed co-combustion of hydrothermally treated paper sludge with two coals of different rank

2016 ◽  
Vol 144 ◽  
pp. 230-238 ◽  
Author(s):  
Chinnathan Areeprasert ◽  
Fabrizio Scala ◽  
Antonio Coppola ◽  
Massimo Urciuolo ◽  
Riccardo Chirone ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Paper Sludge

Operating experience with lined cyclones in vessels with a fluidized bed

1981 ◽  
Vol 17 (5) ◽  
pp. 259-261
Author(s):  
D. M. Soskind ◽  
E. Ya. Barsukov ◽  
G. I. Zavelev ◽  
G. A. Efremova ◽  
V. V. Meshcheryakov ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Operating Experience

scholarly journals Operating Experience of a New Paper Sludge Incinerator

2001 ◽  
Vol 55 (1) ◽  
pp. 76-82,021
Author(s):  
Kazutaka Wada ◽  
Yasuhiro Hara
Keyword(s):  
Operating Experience ◽  
Paper Sludge
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