Application of alkyl sulfonate to in-furnace desulfurization and desulfurizing and coal saving method

An alkyl sulfonate and furnace desulfurization technology, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles, can solve the problems of inability to meet environmental protection technical requirements, inability to directly remove solid sulfur, high investment and operating costs, etc. problems, to achieve the effect of simple structure, good adaptability, raw material cost and operating cost reduction

Inactive Publication Date: 2009-09-16
济南高新区工业废石膏利用研发中心
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process can only desulfurize about 75% of the flue gas, and the efficiency of the desulfurization device is ≥90%, and about 25% of the flue gas does not pass through the desulfurization device, but directly enters the chimney after bypassing the temperature rise
Although this process has the characteristics of simple process structure, low initial investment and operating costs, it has the following disadvantages: 1. The low-temperature flue gas after desulfurization and the high-temperature flue gas without desulfurization are mixed and discharged after heating, which improves the humidity of the exhaust gas; 2. The flue gas desulfurization efficiency is only about 70%, which cannot meet the increasingly high environmental protection technical requirements of the current society
Although this process can achieve better desulfurization efficiency, it still has the following deficiencies: First, it only absorbs sulfur dioxide in the flue gas in the furnace, flue and desulfurizatio

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Application of alkyl sulfonate to in-furnace desulfurization and desulfurizing and coal saving method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] a. Furnace desulfurization:

[0031] 1. Prepare sodium dodecylsulfonate and CaCO 3 mixture

[0032] The mixture contains 1% sodium dodecyl sulfate;

[0033] 2. With a mass ratio of 1:1000 (mixture / coal), sodium alkylsulfonate and CaCO 3 The mixture is put into the burning furnace, and the chemical reaction is carried out under the high temperature environment in the furnace. The solid sulfur and CaCO in the coal combustion 3 Generate sulfur-containing solid sulfate (main component calcium sulfate) under the action of sodium alkylsulfonate;

[0034] Calcium sulfate, remaining CaCO 3 And the CaO generated by the reaction is discharged in the form of desulfurization mixed slag.

[0035] b. Flue gas desulfurization:

[0036] 1. Sieve out most of the CaO in the above-mentioned desulfurization mixed slag by using a projection vibrating sieving machine. The mesh numbers of the three sets of sieves are 20 mesh, 40 mesh and 60 mesh respectively;

[0037] After screening, ...

Embodiment 2

[0043] a. Furnace desulfurization:

[0044] 1. Prepare sodium pentadecylsulfonate and CaCO 3 The mixture, the mixture contains 1% sodium pentadecyl sulfonate;

[0045] 2. With the mass ratio (mixture / coal) of (0.5—1.5):(500—1500), sodium pentadecylsulfonate and CaCO 3 The mixture is put into the burning furnace, and the chemical reaction is carried out under the high temperature environment in the furnace. The solid sulfur and CaCO in the coal combustion 3 Generate sulfur-containing solid sulfate (main component calcium sulfate) under the action of sodium pentadecylsulfonate;

[0046] Calcium sulfate, remaining CaCO 3 And the CaO generated by the reaction is discharged in the form of desulfurization mixed slag.

[0047] b. Flue gas desulfurization:

[0048] 1. Sieve out most of the CaO in the above-mentioned desulfurization mixed slag by using a projection vibrating sieving machine. The mesh numbers of the three sets of sieves are 20 mesh, 40 mesh and 60 mesh respectively...

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

PUM

No PUM Login to view more

Abstract

The invention relates to application of alkyl sulfonate to in-furnace desulfurization and a desulfurizing and coal saving method. The invention discloses a two-step desulfurizing and coal saving process, and belongs to the technical field of flue gas sulfur dioxide processing. The method comprises two steps: 1, in-furnace desulfurization, wherein byproducts of the desulfurizing in the furnace in-furnace desulfurization can be taken as raw materials for flue gas desulfurization of step 2 after screen separation treatment; and 2, the flue gas desuferization. Compared with the prior art, the two-step desulfurizing and coal saving process has the characteristics of high desulfurization efficiency, low cost and the like.

Description

technical field [0001] The invention relates to coal-fired desulfurization technology, in particular to the application of alkyl sulfonate in furnace desulfurization and the corresponding desulfurization and coal-saving method. Background technique [0002] There are many mature desulfurization processes in the prior art, such as simple wet limestone-gypsum desulfurization process. This process uses lime slurry as a desulfurizer to complete the desulfurization of flue gas through absorption, separation, demisting and other treatments. However, this process can only desulfurize about 75% of the flue gas, and the efficiency of the desulfurization device is ≥90%. The other 25% of the flue gas does not pass through the desulfurization device, but directly enters the chimney after bypassing the temperature. Although this process has the characteristics of simple process structure, low initial investment and operating costs, it has the following disadvantages: 1. The low-temperat...

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

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01D53/50
Inventor 苏同兴王爱民王庆珍赵兵
Owner 济南高新区工业废石膏利用研发中心
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap