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Desulfurization catalyst and preparation method thereof

A desulfurization catalyst and production method technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of complex preparation process of desulfurizer, low desulfurization efficiency, long preparation time, etc., and achieve improvement Boundary conditions, the effect of strengthening the desulfurization process, and reducing energy consumption

Inactive Publication Date: 2019-02-22
XINJIANG ENVIRONMENTAL ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] First, the desulfurizer uses a variety of materials, is not easy to prepare, and has low desulfurization efficiency
[0007] Second, the preparation process of the desulfurizer is complex and the preparation time is long

Method used

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  • Desulfurization catalyst and preparation method thereof
  • Desulfurization catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A desulfurization catalyst comprises, by weight: 15 parts of aluminum chloride, 15 parts of urea, 10 parts of ammonium nitrate, 15 parts of nickel nitrate and 15 parts of aluminum oxide.

[0029] The preparation step of described desulfurization catalyst comprises:

[0030] Step 1: adding specified weight parts of aluminum chloride and urea to the reactor, and adding deionized water for stirring to obtain a mixed solution;

[0031] Step 2: adding ammonium nitrate, nickel nitrate and aluminum oxide to the mixed solution in step 1 and stirring, after stirring evenly, drying the mixture to obtain desulfurization catalyst A.

Embodiment 2

[0033] A desulfurization catalyst comprises, in parts by weight: 20 parts of aluminum chloride, 5 parts of urea, 15 parts of ammonium nitrate, 10 parts of nickel nitrate and 10 parts of aluminum oxide.

[0034] The preparation step of described desulfurization catalyst comprises:

[0035] Step 1: adding specified weight parts of aluminum chloride and urea to the reactor, and adding deionized water for stirring to obtain a mixed solution;

[0036] Step 2: adding ammonium nitrate, nickel nitrate and aluminum oxide to the mixed solution in step 1 and stirring, after stirring evenly, drying the mixture to obtain desulfurization catalyst B.

Embodiment 3

[0038] A desulfurization catalyst comprises, in parts by weight: 18 parts of aluminum chloride, 12 parts of urea, 12 parts of ammonium nitrate, 13 parts of nickel nitrate and 13 parts of aluminum oxide.

[0039] The preparation step of described desulfurization catalyst comprises:

[0040] Step 1: adding specified weight parts of aluminum chloride and urea to the reactor, and adding deionized water for stirring to obtain a mixed solution;

[0041] Step 2: adding ammonium nitrate, nickel nitrate and aluminum oxide to the mixed solution in step 1 and stirring, after stirring evenly, drying the mixture to obtain desulfurization catalyst C.

[0042] Use the desulfurizer prepared in the above examples to desulfurize the flue gas, and the desulfurization results are shown in Table 1, wherein, the unit load is 315.5MW, and the original flue gas SO 2 The concentration is 1935mg / Nm 3 .

[0043] Table 1

[0044]

[0045] According to Table 1, it can be concluded that after adding...

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PUM

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Abstract

The invention relates to a desulfurization catalyst. The desulfurization catalyst contains the following components in parts by weight: 15-20 parts of aluminum chloride, 5-15 parts of urea, 10-15 parts of ammonium nitrate, 10-15 parts of nickel nitrate and 10-15 parts of aluminum oxide. According to the desulfurization catalyst, boundary conditions of the reaction between limestone slurry and SO2can be effectively improved, the desulfurization process of the reaction can be intensified, the desulfurization efficiency can be improved, the adaptability of a desulfurization system for the changeof sulfur content of fire coal can be improved, the energy consumption can be reduced, and the standardized discharge of SO2 in exhaust gas can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of coal-fired desulfurization in thermal power plants, in particular to a desulfurization catalyst and a preparation method thereof. Background technique [0002] Since the reform and opening up, with the rapid development of the power industry, SO 2 Pollution is becoming more and more serious, reducing and controlling coal-fired SO in thermal power plants 2 Pollution has become the most urgent task in the field of air pollution control in my country. [0003] Limestone-gypsum wet flue gas desulfurization technology is widely used because of its mature technology, good adaptability to coal types, high desulfurization efficiency and high system operation reliability. In recent years, due to changes in the coal market, the sulfur content of incoming coal in many thermal power plants has been much higher than the design value, which has enabled the desulfurization system to be widely used due to its high sulf...

Claims

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Application Information

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IPC IPC(8): B01J27/24B01J37/08B01D53/86B01D53/50
CPCB01D53/8609B01D2258/0283B01J27/24B01J37/082
Inventor 宋勇曾凡付艾山·玉素莆王智慧余莉陈晓青
Owner XINJIANG ENVIRONMENTAL ENG TECH
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