Bed material for bubbling fluidized bed combustion

A bubbling fluidized bed, fuel technology, used in the operation of bubbling fluidized bed boilers, ilmenite particles in the field of bubbling fluidized bed boilers, can solve the problem of increased emissions, reduced boiler efficiency, undesired environmental impacts, etc. problem, to achieve the effect of increasing heat capacity, efficient combustion process, and reducing input
CN107002989BActive Publication Date: 2021-07-09IMPROBED AB
11 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
IMPROBED AB
Publication Date
2021-07-09

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the technical field of bubbling fluidized bed combustion and relates to <dp>Use of ilmenite particles as a bed material in a bubbling fluidized bed (BFB) boiler having an excess air ratio (λ) of less than 1.3, and a method for operating a bubbling fluidized bed (BFB) boiler, comprising carrying out the combustion process with a bubbling fluidized bed comprising ilmenite particles as defined in any one of claims 1 and 4-5; and setting the excess air ratio (λ) to a value less than 1.3.< / dp>
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of bubbling fluidized bed combustion and relates to the use of ilmenite particles in a bubbling fluidized bed boiler and a method for operating the bubbling fluidized bed boiler. Background technique

[0002] In fluidized bed combustion (FBC), fuel is suspended in a heated fluidized bed of solid particulate material. In this technique, a fluidizing gas is passed through a bed of solid particles at a specific fluidization velocity. At very low gas velocities, the bed remains stationary. Once the velocity of the fluidizing gas rises above the minimum fluidization velocity (u mf ), the solid bed material behaves like a fluid in many respects, and the bed is said to be fluidized. The two main types of fluidized bed combustion systems in practical use are bubbling fluidized bed (BFB) boilers and circulating fluidized bed (CFB) boilers.

[0003] BFB combustion has been developed as a grate boiler replacement a...

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