COMBINED FLUIDIZED BED RETORTING AND

COMBINED FLUIDIZED BED RETORTING AND …

2014-2-11 · Combined Fluidized Bed Retorting and Circulating Fluidized Bed Combustion System of Oil Shale 47 ature increased further from 460 to 520 °C, the yield of shale oil increased slightly, by 0.81%. During the whole retorting process, the fuel gas yield increased with increasing retorting temperature, which was attributed to the

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>HEAT RATE OPTIMIZATION OF CIRCULATING FLUIDIZED

HEAT RATE OPTIMIZATION OF CIRCULATING FLUIDIZED …

2016-10-19 · the factors which affect the circulating fluidized-bed boilers coal power plant efficiency and emissions will be explained thoroughly. All the methods used to calculate the heat rate of circulating fluidized-bed boilers coal power plants will be covered in detail.

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>Fluidized Bed Temperature Control System Based on

Fluidized Bed Temperature Control System Based on …

The fluidized bed is a complex system with a big lag, time-varying and non-linear. The conventional-PID methods are simple, practical, and high reliability. However, choosing and adjusting PID parameters rely on manual way. It is difficult to choose appropriate values when temperature requirement is higher. Inappropriate values may cause large overshoot and low control precision.

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>Mechanisms of Bed Material Agglomeration in a

Mechanisms of Bed Material Agglomeration in a …

Petroleum coke firing in a circulating fluidized bed boiler has sometimes been reported to be associated with cyclone deposit problems and return leg plugging. In this paper, we present data which indicate that some of these problems may be due to the calcium-rich bed material used during the firing.

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>Study on Dynamic Behavior of the Combustion System of

Study on Dynamic Behavior of the Combustion System of a

According to the profile of the solid suspension density along the height of the furnace which was obtained by many hot test measurement in different operating mode,and on the basis of the correlations between the exit suspension density of each zone and the

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>Direct desulfurization of limestones under oxy

Direct desulfurization of limestones under oxy …

Direct desulfurization of limestones under oxy-circulating fluidized bed combustion conditions for experiments conducted under oxy-circulating fluidized bed (CFB) combustion conditions (temperature 600–850 and was under more kinetic control or a combination of kinetic and diffusion control. Also, another factors affecting to sulfur

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>Fluidized Bed Steam Boiler Paper Indust

Fluidized Bed Steam Boiler Paper Industry

Our circulating fluidized-bed (CFB) boiler features a top-supported, one- or two-drum design ideal for burning challenging fuels, including high sulfur and high ash fuels and various waste fuels, wood, biomass, gob and culm. Capacity, steam pressure and temperature ranges with subcritical and supercritical applications.

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>Fluidized Bed Temperature Control System Based on

Fluidized Bed Temperature Control System Based on …

The fluidized bed is a complex system with a big lag, time-varying and non-linear. The conventional-PID methods are simple, practical, and high reliability. However, choosing and adjusting PID parameters rely on manual way. It is difficult to choose appropriate values when temperature requirement is higher. Inappropriate values may cause large overshoot and low control precision.

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>Factors affecting the heat transfer in a circulatin

Factors affecting the heat transfer in a circulating

Factors affecting the heat transfer in a circulating fluidized bed boiler Article in Qinghua Daxue Xuebao/Journal of Tsinghua University 47(11):2026-2030 · November 2007 with 12 Reads

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>Oxy-fuel combustion in circulating fluidized bed

Oxy-fuel combustion in circulating fluidized bed …

The conditions for CO 2 reduction in a circulating fluidized bed (CFB) oxy-boiler are studied, that is, operation with pure oxygen, diluted by recirculated flue gases to moderate the combustion process. Two cases are analyzed: the ready-to-convert case, a normal air-fired CFB boiler, only slightly modified to be operated with oxygen instead of air for CO 2 capture, and a more general option

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>circulating fluidized bed hot water boil

circulating fluidized bed hot water boiler

Long life thermal efficiency CFB Boiler Circulating Fluidized Bed Hot Water Boiler for Utility ASME . Product Description. Circulating fluidized bed is of low-temperature combustion, therefore, nitrogen oxides emissions of such boiler is much lower than that of coal-powder boiler, and such boiler could directly desulfurized during combustion

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