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Natural mineral powder coal desulfurizing agent

A natural mineral and pulverized coal-fired technology, which is applied in the field of coal-fired desulfurizers, can solve problems such as poor effects, and achieve the effects of novel and unique design, wide sources, and wide application range

Inactive Publication Date: 2009-10-28
范文彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a natural mineral powder coal-fired desulfurizer to solve the problems of poor effect and new pollution sources in the current desulfurization and emission reduction process

Method used

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  • Natural mineral powder coal desulfurizing agent

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] It is composed of raw materials in the following mass ratios:

[0026] Calcite 20%, CaO content 51-54%, particle size 0.034mm~0.074mm,

[0027] Zeolite: 10%, NH 4 + Exchange capacity≥1mmol / g, particle size 0.074mm~0.15mm

[0028] Wollastonite: 70%, SiO 2 The content is 35-48%, the CaO content is 30-45%, and the particle size is 0.074mm-0.15mm.

Embodiment 2

[0030] It is composed of raw materials in the following mass ratios:

[0031] Calcite 40%, CaO content 51-54%, particle size 0.034mm~0.074mm,

[0032] Zeolite: 15%, NH 4 + Exchange capacity≥1mmol / g, particle size 0.074mm~0.15mm

[0033] Wollastonite: 45%, SiO 2 The content is 35-48%, the CaO content is 30-45%, and the particle size is 0.074mm-0.15mm.

Embodiment 3

[0035] It is composed of raw materials in the following mass ratios:

[0036] Calcite 50%, CaO content 51-54%, particle size 0.034mm~0.074mm,

[0037] Zeolite: 20%, NH 4 + Exchange capacity≥1mmol / g, particle size 0.074mm~0.15mm

[0038] Wollastonite: 30%, SiO 2 The content is 35-48%, the CaO content is 30-45%, and the particle size is 0.074mm-0.15mm.

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Abstract

The invention relates to a natural mineral powder coal-fired desulfurizer, belonging to a desulfurizer. It is composed of raw materials with the following mass ratio: calcite 20%-50%, CaO content 51-54%, particle size 0.034mm-0.074mm, zeolite: 10%-20%, NH4+ exchange capacity ≥ 1mmol / g, particle size 0.074mm-0.15mm wollastonite: 30%-70%, SiO2 content 35-48%, CaO content 30-45%, particle size 0.074mm-0.15mm. The invention has the advantage that the raw materials used are all inorganic minerals, have wide sources and are pollution-free. The present invention adopts a dry desulfurization method, which can be adopted by any thermal power plant or thermal power company, and has a wide application range.

Description

technical field [0001] The invention relates to the application of natural minerals in the field of environmental protection, in particular to a coal-fired desulfurizer. Background technique [0002] my country's SO 2 High emissions, ranking the forefront of the world. According to statistics, from 1990 to 2005, my country's SO 2 The emissions are all around 22 million tons to 25 million tons, of which the emissions from power plants account for about 67% of the total. If there is no control and reduction, the emissions will reach 35 million tons by 2020. According to the estimation of the environmental protection department, SO in the atmosphere of our country 2 The capacity of concentration quality secondary standard is 12 million tons. The actual displacement more than doubled. The environmental crisis is a fact. At present, there are many technologies for desulfurization and emission reduction in the world. There are three main methods: wet desulfurization, semi-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L10/02
CPCC10L10/02
Inventor 范文彬刘允涛范宇王斌张家学尹春梅
Owner 范文彬