Composite humidifying process suitable for circulating fluid bed semi-drying method flue gas desulfurization

A circulating fluidized bed, semi-dry technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of desulfurization ash sticking to the wall, poor continuous operation stability, high Ca/S ratio, etc. The effect of running stability and improving utilization
CN101077470AInactive Publication Date: 2007-11-28SHANDONG UNIV
0 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2007-11-28
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The present invention is one composite humidifying process for semi-dry fume desulfurization in a circulating fluidized bed, and belongs to the field of industrial waste gas purifying, environment protecting and energy source technology. The composite humidifying process includes simultaneous inside-tower humidifying and outside-tower humidifying, the inside-tower humidifying is completed via spraying water directly through nozzle, and the outside-tower humidifying is to humidifying ash for the circulating process. The present invention has reasonably improved complex gas-liquid-solid reaction inside the desulfurizing tower, raised desulfurizing agent utilizing rate and raised running stability of the desulfurizing system.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the fields of industrial waste gas purification, environmental protection and energy, and in particular relates to a composite humidification process for semi-dry circulating fluidized bed flue gas desulfurization suitable for flue gas purification. Background technique

[0002] Flue gas desulfurization technology is a method widely used at home and abroad to control sulfur dioxide in coal-fired flue gas. The semi-dry circulating fluidized bed flue gas desulfurization process (CFB-FGD) is especially suitable for the desulfurization transformation of existing power plants burning medium and low sulfur coal due to its simple process, low investment and small land occupation. However, the CFB-FGD process still has common problems such as high Ca / S ratio, desulfurization ash sticking to the wall, poor continuous operation stability, and desulfurization agent utilization rate is only 50%~60%, which has become a bottleneck restrictin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More