Our Offered Machines to you

Who are in extremely love with eco friendly system..

Numerical study on the effect of fine coal

01/10/2015  One important phenomenon in coal beneficiation fluidized bed (CBFB) is the accumulation of fine coal particles in beneficiation due to poor screening efficiency and attrition of coal samples. The effect of fine coal accumulation is numerically studied in this work using a TFM–DEM hybrid model. The gas phase and medium solid phase are modeled by a two-fluid model (TFM), while

Free Chat

Numerical Study on the Effect of Fine Coal

Request PDF Numerical Study on the Effect of Fine Coal Accumulation in a Coal Beneficiation Fluidized Bed One important phenomenon in Coal Beneficiation Fluidized Bed (CBFB) is the ...

Free Chat

Numerical study on the effect of fine coal

One important phenomenon in coal beneficiation fluidized bed (CBFB) is the accumulation of fine coal particles in beneficiation due to poor screening efficiency and attrition of coal samples. The effect of fine coal accumulation is numerically studied in this work using a TFM–DEM hybrid model. The gas phase and medium solid phase are modeled by a two-fluid model (TFM), while the fine coal ...

Free Chat

Effect of fine coal accumulation on dense phase

Download Citation Effect of fine coal accumulation on dense phase fluidized bed performance System for the dry separation of 50 X 6-mm coal is described. It consists of an air dense-medium ...

Free Chat

Fluidized bed - Wikipedia

A fluidized bed is a physical phenomenon occurring when a quantity of a solid particulate substance (usually present in a holding vessel) is placed under appropriate conditions to cause a solid/fluid mixture to behave as a fluid. This is usually achieved by the introduction of pressurized fluid through the particulate medium. This results in the medium then having many properties and characteristics of

Free Chat

Fluidized Bed Reactor Technology in Sewage

The FBS is a small sewage treatment plant of the latest generation, operating according to the fluidised bed process. The natural wastewater accumulation flows freely through the plant. An integrated restriction makes sure that the flow is equalised in order to

Free Chat

Fluidized bed combustion - Wikipedia

Fluidized bed combustion (FBC) is a combustion technology used to burn solid fuels. In its most basic form, fuel particles are suspended in a hot, bubbling fluidity bed of ash and other particulate materials (sand, limestone etc.) through which jets of air are blown to provide the oxygen required for combustion or gasification. The resultant fast and intimate mixing of gas and solids promotes rapid heat transfer and chemical reactions within the bed. FBC plants are capable of burning a variety o

Free Chat

Electrostatics in gas-solid fluidized beds: A review ...

14/12/2017  Accumulation of electrostatic charges in fluidized bed reactors can result in severe problems such as agglomeration, wall fouling, nuisance and hazardous discharge, all reducing the process performance and raising significant safety concerns. Tribo-charging of particles in fluidized beds has also been exploited in a number of useful applications. In this review, the characterization

Free Chat

Simulation of Particle Segregation in Fluidized Beds

The bed expands at the minimum fluidization velocity and the regime changes to bubbling fluidized bed as the gas velocity increases. Most of the type B materials are in the range of 40 µm to 500 µm in size with density ranging from 1400 kg/m3 to 4000 kg/m3. The bubbling regime starts as soon as the minimum fluidization

Free Chat

Numerical study on the effect of fine coal

One important phenomenon in coal beneficiation fluidized bed (CBFB) is the accumulation of fine coal particles in beneficiation due to poor screening efficiency and attrition of coal samples. The effect of fine coal accumulation is numerically studied in this work using a TFM–DEM hybrid model. The gas phase and medium solid phase are modeled by a two-fluid model (TFM), while the fine coal ...

Free Chat

Effect of fine coal accumulation on dense phase

Download Citation Effect of fine coal accumulation on dense phase fluidized bed performance System for the dry separation of 50 X 6-mm coal is described. It consists of an air dense-medium ...

Free Chat

Accumulation of Metabolic Intermediates during

Groundwater containing benzene, toluene, and p-xylene (BTX) was treated in fluidized bed reactors using nonactivated carbon (FBR) and activated carbon (BAC-FBR) as the biofilm carriers.BTX removal and accumulation of metabolic intermediates were studied at steady state and during single-substrate step-loading increases.

Free Chat

Numerical study on the effect of fine coal

Abstract One important phenomenon in coal beneficiation fluidized bed (CBFB) is the accumulation of fine coal particles in beneficiation due to poor screening efficiency and attrition of coal samples. The effect of fine coal accumulation is numerically studied in this work using a TFM–DEM hybrid model. The gas phase and medium solid phase are modeled by a two-fluid model (TFM), while the ...

Free Chat

Influence of Volatile Fatty Acids on Nitrite

Intermediate nitrite accumulation during denitrification by Pseudomonas stutzeri isolated from a denitrifying fluidized bed reactor was examined in the presence of different volatile fatty acids. Nitrite accumulated when acetate or propionate served as the carbon and electron source but did not accumulate in the presence of butyrate, valerate, or caproate. Nitrite accumulation in the presence ...

Free Chat

Bioprocess Control of Sulphate Reduction in an

Bioprocess Control of Sulphate Reduction in an Inverse Fluidized Bed Reactor: Role of Microbial Accumulation and Dynamic Mathematical Modelling book. Bioprocess Control of Sulphate Reduction in an Inverse Fluidized Bed Reactor: Role of Microbial Accumulation and Dynamic Mathematical Modelling . DOI link for Bioprocess Control of Sulphate Reduction in an Inverse Fluidized Bed

Free Chat

Simulation of Particle Segregation in Fluidized Beds

on a fluidized bed with the same size and design (Taghipour et al, 2005). Hence, the simulation results are validated against data from experimental studies performed by Thapa et al (2011). 3 Experimental Setup Thapa et al. (2011) have carried out experimental investigations of fluidization using particles with different densities and sizes. The experimental rig was an 84mm diameter ...

Free Chat

Fluidized Bed Combustion FBC Boiler - Boilersinfo

“ (FBC) Fluidized bed combustion is a combustion technology used to burn solid fuels in steam boilers.” In Fluidized Bed Combustion Boiler technology When air or gas is passed through an inert bed of solid particles such as sand supported on a fine mesh or grid, the air initially will seek a path of least resistance and pass upward through the sand.

Free Chat

Fluidized‐Bed Bioreactors Request PDF

Fluidized-bed reactors present a number of advantages that make them an attractive alternative in processes involving biocatalysts. However, fluidized-bed bioreactors are also realtively complex ...

Free Chat

Fluidized Bed Jottings of a Research Scholar

A bed of well mixed solids represents a large thermal flywheel and thus responds slowly to abrupt changes in operating conditions; A flexible process temperature control enables optimization of other process variables to increase product yields and minimize wastes and by products ; The circulations of solids between two fluidized bed allows continuous catalyst generation; The use of small ...

Free Chat

Numerical study on the effect of fine coal

One important phenomenon in coal beneficiation fluidized bed (CBFB) is the accumulation of fine coal particles in beneficiation due to poor screening efficiency and attrition of coal samples. The effect of fine coal accumulation is numerically studied in this work using a TFM–DEM hybrid model. The gas phase and medium solid phase are modeled by a two-fluid model (TFM), while the fine coal ...

Free Chat

Effect of fine coal accumulation on dense phase

Download Citation Effect of fine coal accumulation on dense phase fluidized bed performance System for the dry separation of 50 X 6-mm coal is described. It consists of an air dense-medium ...

Free Chat

Accumulation of Metabolic Intermediates during

Groundwater containing benzene, toluene, and p-xylene (BTX) was treated in fluidized bed reactors using nonactivated carbon (FBR) and activated carbon (BAC-FBR) as the biofilm carriers.BTX removal and accumulation of metabolic intermediates were studied at steady state and during single-substrate step-loading increases.

Free Chat

Stimulating accumulation of nitrifying bacteria in

Stimulating accumulation of nitrifying bacteria in porous carrier by addition of inorganic carbon in a continuous-flow fluidized bed wastewater treatment reactor. Jun BH(1), Tanji Y, Unno H. Author information: (1)Department of Biotechnology, School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan. Porous polyurethane ...

Free Chat

FI96867B - The fluidized bed reactor - Google Patents

FI96867B - The fluidized bed reactor - Google Patents The fluidized bed reactor Download PDF Info Publication number FI96867B ... 238000009825 accumulation Methods 0.000 description 3; 0 C1CC[[email protected]@H](CC2C(CC)(CC(C2CC(C[[email protected]](CC(C(*)(C2C*2C1CCC)*)C)C)(C)*)C)C) C Chemical compound C1CC[[email protected]@H](CC2C(CC)(CC(C2CC(C[[email protected]](CC(C(*)(C2C*2C1CCC)*)C)C)(C)*)C)C)C

Free Chat

Influence of Volatile Fatty Acids on Nitrite

Intermediate nitrite accumulation during denitrification by Pseudomonas stutzeri isolated from a denitrifying fluidized bed reactor was examined in the presence of different volatile fatty acids. Nitrite accumulated when acetate or propionate served as the carbon and electron source but did not accumulate in the presence of butyrate, valerate, or caproate. Nitrite accumulation in the presence ...

Free Chat

Influence of Volatile Fatty Acids on Nitrite

Intermediate nitrite accumulation during denitrification by Pseudomonas stutzeri isolated from a denitrifying fluidized bed reactor was examined in the presence of different volatile fatty acids. Nitrite accumulated when acetate or propionate served as the carbon and electron source but did not accumulate in the presence of butyrate, valerate, or caproate.

Free Chat

Bioprocess Control of Sulphate Reduction in an

Bioprocess Control of Sulphate Reduction in an Inverse Fluidized Bed Reactor: Role of Microbial Accumulation and Dynamic Mathematical Modelling book. Bioprocess Control of Sulphate Reduction in an Inverse Fluidized Bed Reactor: Role of Microbial Accumulation and Dynamic Mathematical Modelling . DOI link for Bioprocess Control of Sulphate Reduction in an Inverse Fluidized Bed

Free Chat

Biofilm detachment mechanisms in a

In this work, a two‐phase fluidized‐bed biofilm was operated under a constant surface loading (0.09 mg total organic carbon/cm 2 day) and with a range of bed height (H), fluid velocities (U), and support‐particle concentrations (C p). Direct measurements were made for the specific biofilm loss rate coefficient (b s)and the total biofilm accumulation (X f L f). A hydrodynamic model ...

Free Chat

(PDF) Circulating fluidized bed combustor

The purpose of this report is to present the technology behind Circulating Fluidized Bed reactors, as well. as the results of the simulations that were carried out during this internship, in an ...

Free Chat

Numerical study on the effect of fine coal

One important phenomenon in coal beneficiation fluidized bed (CBFB) is the accumulation of fine coal particles in beneficiation due to poor screening efficiency and attrition of coal samples. The effect of fine coal accumulation is numerically studied in this work using a TFM–DEM hybrid model. The gas phase and medium solid phase are modeled by a two-fluid model (TFM), while the fine coal ...

Free Chat

Effect of fine coal accumulation on dense phase

Download Citation Effect of fine coal accumulation on dense phase fluidized bed performance System for the dry separation of 50 X 6-mm coal is described. It consists of an air dense-medium ...

Free Chat

Stimulating accumulation of nitrifying bacteria in

Stimulating accumulation of nitrifying bacteria in porous carrier by addition of inorganic carbon in a continuous-flow fluidized bed wastewater treatment reactor. Jun BH(1), Tanji Y, Unno H. Author information: (1)Department of Biotechnology, School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan. Porous polyurethane ...

Free Chat

FI96867B - The fluidized bed reactor - Google Patents

FI96867B - The fluidized bed reactor - Google Patents The fluidized bed reactor Download PDF Info Publication number FI96867B ... 238000009825 accumulation Methods 0.000 description 3; 0 C1CC[[email protected]@H](CC2C(CC)(CC(C2CC(C[[email protected]](CC(C(*)(C2C*2C1CCC)*)C)C)(C)*)C)C) C Chemical compound C1CC[[email protected]@H](CC2C(CC)(CC(C2CC(C[[email protected]](CC(C(*)(C2C*2C1CCC)*)C)C)(C)*)C)C)C

Free Chat

Bioprocess Control of Sulphate Reduction in an

Bioprocess Control of Sulphate Reduction in an Inverse Fluidized Bed Reactor: Role of Microbial Accumulation and Dynamic Mathematical Modelling book. Bioprocess Control of Sulphate Reduction in an Inverse Fluidized Bed Reactor: Role of Microbial Accumulation and Dynamic Mathematical Modelling . DOI link for Bioprocess Control of Sulphate Reduction in an Inverse Fluidized Bed

Free Chat

Biofilm detachment mechanisms in a

In this work, a two‐phase fluidized‐bed biofilm was operated under a constant surface loading (0.09 mg total organic carbon/cm 2 day) and with a range of bed height (H), fluid velocities (U), and support‐particle concentrations (C p). Direct measurements were made for the specific biofilm loss rate coefficient (b s)and the total biofilm accumulation (X f L f). A hydrodynamic model ...

Free Chat

Influence of Volatile Fatty Acids on Nitrite

Intermediate nitrite accumulation during denitrification by Pseudomonas stutzeri isolated from a denitrifying fluidized bed reactor was examined in the presence of different volatile fatty acids. Nitrite accumulated when acetate or propionate served as the carbon and electron source but did not accu

Free Chat

Control of a Fluidized Bed Polyethylene Reactor

KEY WORDS : Fluidized bed reactor, Polyethylene, PID control, Dynamic simulation, Two phase model. INTRODUCTION Nowadays polyethylene is considered to be the world largest produced polymer in petrochemical plants. Because of the advantages of gas-phase processes such as moderate reaction operating conditions, absence of solvent and well mixing of the components, production of different

Free Chat

Method for fluidized bed polymerization - Union

This assumption was predicated on the belief that the introduction of liquid into a gas phase fluidized bed reactor would inevitably result in plugging of the recycle lines, heat exchanger or below the fluidized bed or gas distributor plate, (if one is employed); non-uniformity of monomer concentrations inside the fluidized bed; and accumulation of liquid at the bottom of the reactor which ...

Free Chat

Influence of fluidized‐bed roasting conditions of

Sesame seeds are roasted to change their microstructure for oil accumulation, to intensify flavor, and to increase the levels of antioxidants in the oil. Regarding the production of high‐quality roasted oil, the roasting of sesame seeds in fluidized‐bed dryers and the subsequent oil extraction in screw‐presses have never been reported together. High oil recoveries and roasted sesame oils ...

Free Chat