coal fired circulating fluidized bed combustion steam generator
fluidized bed combustion dekker mechanical engineering
Ngày tải lên :
02/04/2014, 14:57
... DURING COAL COMBUSTION IN FLUIDIZED BEDS 4.1 Characteristic features of combustion in fluidized beds 4.1.1 Combustion conditions in fluidized beds 4.1.2 Physical processes during coal particle combustion ... art in fluidized bed combustion research, and should have ready access to the data available on the behavior of full-scale bubbling fluidized bed combustion boilers While fluidized bed combustion ... technology: the circulating fluidized bed The subject of bubbling fluidized bed combustion has been treated in a number of early volumes such as the 1970 book on fluidized combustion of coal from the...
600
434
0
proceedings of the 20th international conference on fluidized bed combustion
Ngày tải lên :
02/04/2014, 15:01
... Conference on Fluidized Bed Combustion CHARACTERISTICS OF PYROLYTIC TOPPING IN FLUIDIZED BED FOR DIFFERENT VOLATILE COALS R Xiong, L Dong, G W Xu 404 FLUIDISED BED COMBUSTION OF ... Conference on Fluidized Bed Combustion, Canada, 1997 Yue, G X., Lu, J F., Zhang, H, et al Design Theory of Circulating Fluidized Bed Boilers, 18th International Fluidized Bed Combustion Conference, ... LIGNITE CIRCULATING FLUIDIZED BED BOILER COUPLED WITH PYROLYSIS TOPPING Baoqun Wang, Li Dong, Yin Wang, Y Matsuzawa, Guangwen Xu APPLICATION OF CAO-BASED BED MATERIAL FOR DUAL FLUIDIZED BED STEAM...
1.2K
2.1K
0
ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - FLUIDIZED BED COMBUSTION pps
Ngày tải lên :
10/08/2014, 20:20
... Application of Fluidized- Bed Combustion, ” Argonne National Laboratory, Publication No ANL/ES-CEN-1002, 1970, n pag A Skopp and G Hammons, “NOx Formation and Control in Fluidized- Bed Coal Combustion ... involves the effect of fluidized bed gas circulation on bed chemistry An emulsion phase and a gas bubble phase FLUIDIZED BED COMBUSTION exist in any gas-solid fluidized bed Excess gas which is not ... contains 25%, by weight, coal refuse Coal refuse is defined as “the waste products of coal mining, cleaning and coal preparation operations (e.g., culm, gob, etc.) containing coal, matrix material,...
9
306
0
industrial ecology approach to management of fly ash from fluidized bed combustion production of slow-release fertilizer and soil conditioner
Ngày tải lên :
13/11/2014, 09:49
... 2.2.2 Fluidized Bed Combustion Wastes Fluidized bed combustion (FBC) is a process in which the pulverized coal is mixed with finely ground limestone (CaCO3) and the mixture is combusted in a fluidized ... 2.2 Characteristics of Coal Combustion By-Products 2.2.1 Fly and Bottom Ashes 2.2.2 Fluidized Bed Combustion Wastes 11 2.2.3 Types of Coal Combustion Products ... Adriano, 1993) 2.2.3 Types of Coal Combustion Products Coal combustion products (CCPs) are grouped into four main classes: 1) Class F, 2) Class C, 3) Fluidized Bed Combustion, and 4) Flue Gas Desulphurization...
209
189
1
Parametric analysis of a circulating fluidized bed biomass gasifier for hydrogen production
Ngày tải lên :
29/07/2016, 14:03
... Model of a circulating fluidized bed (CFB) gasifier The fluidized bed reactor has been broadly utilized for coal and biomass combustion and gasification A traditional bubbling fluidized bed gasifier ... therefore, the design of fluidized bed gasifiers has shifted from low velocity bubbling beds to high velocity circulation-based designs because a circulating fluidized bed gasifier (CFB) has a higher ... particles sticky Consequently, the fluidized bed system is changed to a fixed -bed system with the increase of bed temperature In this study, the fluidized bed biomass gasifier should not be operated...
8
416
0
Two dimensional numerical computation of a circulating fluidized bed biomass gasifier
Ngày tải lên :
01/08/2016, 09:30
... C M H., Grace, J R., & Yu, J (1988) Axial gas mixing in a circulating fluidized bed In P Basu, & J F Large (Eds.), Circulating fluidized bed technology II (pp 307–314) New York: Pergamon Press Brown, ... Biomass gasification in a circulating fluidized bed Biomass and Bioenergy, 26, 171–193 Liu, H., & Gibbs, B M (2003) Modeling NH3 and HCN emissions from biomass circulating fluidized bed gasifiers Fuel, ... in circulating fluidized bed risers Chemical Engineering Science, 47(7), 1635–1643 Sadaka, S S., Ghaly, A E., & Sabbah, M A (2002) Two phase biomass air -steam gasification model for fluidized bed...
17
457
0
Improve of produced gas quality by using air steam in fluidized bed gasifier
Ngày tải lên :
09/09/2015, 10:32
... out at fluidized bed atmospheric gasifier with stationary fluidized bed called Biofluid 100 The experimental set-up, shown in (Figures and 2), consists of six main parts: (i) a fluidized bed reactor ... ) Air temperature 200 ( ) Output (steam generator ) 18 ( ) Steam temperature (output steam generator 150 °C, then it will be heated to 450 °C ) Steam flow 18 ( ) Measured quantities: ... was heated to 200 °C in a preheater The steam of 150 °C was produced in a steam generator and its mass flowrate was measured by a steam flowmeter then the steam heat in reheater to 450 °C Blower-compressed...
12
223
0
FischerTropsch liquid fuel production by cogasification of coal and biomass in a solar hybrid dual fluidized bed gasifier
Ngày tải lên :
01/08/2016, 09:30
... bubbling fluidized bed air separation unit combustion reactor coal to liquid coal and biomass to liquid dual fluidized bed fraction in blends fast fluidized bed Fischer-Tropsch liquid greenhouse gas ... and steam generate heating value of fuel, heat flow (J) mine to tank storage capacity (hours) solar hybrid coal- to-liquid solar hybrid coal and biomass to liquid solar hybrid dual fluidized bed ... generate electricity The heat recovery and steam generator (HRSG) is used to recover the heat released from the system to generate steam for steam turbine and steam demand in the system In this system,...
10
144
0
Research on MAP Recovery Conditions using a Fluidized-bed Crystallized Phosphorous Removal System
Ngày tải lên :
05/09/2013, 08:40
... the pH pH Settling tank The experimental apparatus (see Figure 1) comprised a fluidized- bed reactor (inner Fluidized- bed reactor diameter of 150 mm and a height of 4000 mm), a settling tank (inner ... ratio drops further It can be gathered from the above that optimal phosphorus recovery using a fluidized- bed crystallized phosphorus removal system can be achieved by using small particle size MAP ... - 77 - CONCLUSION Ammonia and phosphorus contained in wastewater was crystallized using a fluidized- bed crystallized phosphorus removal system The following are conclusions a) Continuous tests...
6
438
0
AIR POLLUTION AND COAL FIRED POWER PLANTS potx
Ngày tải lên :
06/03/2014, 19:20
... such issue • Major contributors to the poor urban air quality are coal- fired thermal electric power plants, heating boilers, coal- fired cooking & heating household stoves of individual dwellings, ... The country has abundant reserves of coal, which are estimated to be 50 billion tonnes, and depends on coal as the cheap source of energy and heat The annual coal consumption has being increased ... fall to early spring, and accompanied by low winds Basic information on CPPs • • • • • • • • • Coal fired power plants – Type of Power Plant: CHP/Condensing Power Plant Installation capacity of...
10
707
0
EMISSIONS OF HAZARDOUS AIR POLLUTANTS FROM COAL-FIRED POWER PLANTS pot
Ngày tải lên :
29/03/2014, 14:20
... pollutants from coal- fired power plants Coal- fired power plants can be significant contributors to deposition of mercury on soil and water o A study in eastern Ohio reported that coal combustion accounted ... on coal- fired power plants (i.e., air pollution control technologies and their benefits) | Emissions of Hazardous Air Pollutants from Coal- Fired Power Plants 2.0 HAZARDOUS SUBSTANCES IN COAL Coal ... from the Table of Electric Generating Utility Coal- fired Plants in the U.S | Emissions of Hazardous Air Pollutants from Coal- Fired Power Plants Coal- fired power plants emit 84 of the 187 HAPs identified...
46
395
0
STEAM GENERATOR SYSTEMS: OPERATIONAL RELIABILITY AND EFFICIENCY_1 pptx
Ngày tải lên :
29/06/2014, 14:20
... layout of corrosive attacks specific to Steam Generators Degradations of Incoloy 800 Steam Generator Tubing Fig Types of corrosion specific to the steam generator, (IAEA, 1997) Experimental The ... the steam generators and in the second place the correlation between the nature of materials used for the construction of the steam generator tubing, the chemical characteristics of the circulating ... in the Steam Generator Tubes of NPP 165 Duck-Gun Park, Kwon-Sang Ryu and Derac Son Chapter 10 Part Optical Methods for On-line Quality Assurance of Welding Processes in Nuclear Steam Generators...
214
435
0
Báo cáo vật lý: "Mixing Behavior of Binary Polymer Particles in Bubbling Fluidized Bed" doc
Ngày tải lên :
07/08/2014, 14:20
... bubbling fluidized bed in this study Figure 2: Experimental set-up for of the fluidised bed used in this work 3.2.2 Experimental method Batch experiments were carried out in Perspex fluidized bed ... listed in Table 3.2 Mixing Properties of Particles in Fluidized Bed 3.2.1 Apparatus Figure shows the experimental set-up of the mixing fluidized bed The system consisted of a Perspex cylinder, 143 ... 14 mixing in bubbling fluidized bed is well-understood but it is still not possible to predict the effect of operating parameters on the degree of mixing in a fluidized bed. 7 Thus, the objectives...
17
324
0
KHÍ HÓA TẦNG SÔI Gasification of Biomass Using Fluidized Bed
Ngày tải lên :
21/01/2015, 16:53
... furnace was turned on to preheat the fluidized- bed reactor; meanwhile, steam generator was turned on for the preparation of steam for the test After the bed temperature reached the desired level ... Bubbling fluidized bed ID: 108 mm; total height :1400 mm External electric heating Water 5-20 kg / hr Screw feeder Air, Steam 650-950 ºC The details of components of the bubbling fluidized bed gasifier ... series of experiments to analyze the air steam gasification of pine saw dust in a fluidized bed In these tests, steam rate was varied from to 1.8 kg/h The steam to biomass ratio and equivalence...
8
608
2
A study on the side spray fluidized bed processor with swirling airflow for granulation and drug layering
Ngày tải lên :
10/09/2015, 09:01
... 10 B Types of fluidized bed processor 12 B1 Top-spray fluidized bed processor 13 B2 Bottom-spray fluidized bed processor 15 B3 Side-spray fluidized bed processor ... morphology of the ingredients Fluidized bed granulation A popular granulation process in the pharmaceutical industry utilizes the fluidized bed technology Fluidized bed processors were originally ... Top-spray fluidized bed processor Since the introduction of the fluidized bed processor by Wurster (1959), many studies have been carried out to investigate the various aspects of fluidized bed granulation...
181
448
0
Tar abatement for clean syngas production during biomass gasification in a dual fluidized bed
Ngày tải lên :
29/07/2016, 14:02
... dual fluidized bed gasification plant located at ICB-CSIC (Fig 2) and described in a previous work from the authors [26] The gasification plant consisted of two interconnected fluidized beds The gasifier ... fixed bed (FB), (B) fixed bed with catalytically active inner tube (FB + CL), (C) catalytic layer (CL) and (D) catalytic layer with additional monolith (CL + M) Ceramic filter ; catalytic fixed bed ... filters with different designs is presented Four catalytic filter designs were tested: fixed bed (FB), fixed bed with catalytically active inner tube (FB + CL), catalytic layer (CL) and catalytic layer...
8
460
0
Biomass Gasification with CO2 in a Fluidized Bed
Ngày tải lên :
29/07/2016, 14:03
... of bubbles in a fluidized bed AIChE AC CE P [28] Symp Ser 85 (1989) 22-31 [29] M Gräbner, S Ogriseck, B Meyer Numerical simulation of coal gasification at circulating fluidised bed conditions ... bubbling fluidized bed reactor Particuology 7(2009) 307-316 24 ACCEPTED MANUSCRIPT [23] J Xie, W.Q Zhong, B.S Jin, Y.J Shao, H Liu Simulation on gasification of forestry residues in fluidized beds ... air-blown coal- fired D updraft gasifier Fuel 101 (2012) 129-138 TE [6] S Kaewluan, S Pipatmanomai Gasification of high moisture rubber woodchip with rubber waste in a bubbling fluidized bed Fuel...
55
359
0
Study on the fate of metal elements from biomass in a benchscale fluidized bed gasifier
Ngày tải lên :
29/07/2016, 14:03
... C4H4S Bed char, g Ash content in bed char, % Filter char, g Ash content in filter char, % Input of bed material Input of bed material, g Output of bed material Bed metatarsal/ (bed char + bed material), ... remaining in the gasifier bed and filter chamber were collected after each test The char inventory of the bed was separated from the bed material and is termed bed char Note that the bed char samples invariably ... Nitrogen and steam were used as fluidizing agents for the tests Nitrogen was added to the windbox below the distributor by a mass flow controller Steam was directed to the windbox from a steam generator...
12
409
0
Estimation of gas composition and char conversion in a fluidized bed biomass gasifier
Ngày tải lên :
29/07/2016, 15:39
... 1981;41:57–69 [44] Halder PK Combustion of single coal particles in circulating fluidized bed, Ph.D Thesis Technical University of Nova Scotia; 1989 [45] Wen CY, Chen LH Fluidized bed freeboard phenomena ... of a circulating fluidized bed gasifier for sewage sludge Chem Eng Sci 2005;60:4469–84 [11] Chen G, Spliethoff H, Andries J, Glazer MP, Yang LB Biomass gasification in a circulating fluidized bed ... 9th int conf on circulating fluidized beds Germany: Hamburg; 2008 p 727–32 [43] Donsi G, Massimilla L, Miccio M Carbon fines production and elutriation from the bed of a fluidized coal combustor...
13
444
0
Reactivity tests of the wateregas shift reaction on fresh and used fluidized bed materials from industrial DFB biomass gasifiers
Ngày tải lên :
01/08/2016, 09:30
... paper give an insight into the capability of inorganic bed material particles, fresh olivine, used olivine and calcite, in the dual fluidized bed steam gasifier for the promotion of the wateregas ... Appl Catal A 2005;294(1):68e79 Kirnbauer F, Hofbauer H Investigations on bed material changes in a dual fluidized bed steam gasification plant in Gu¨ssing, Austria Energy Fuels 2011;25:3793e8 ... conditions [14] dosed and mixed by thermal mass flow controllers A steam generator with a constant flow device is also installed for adding steam After mixing of the gaseous species at the inlet of the...
7
166
0
Xem thêm