Normal temperature nanometer desulfurizing agent and its preparation process

A desulfurizer and nanotechnology, applied in the field of desulfurizer and its preparation, can solve the problems of lower sulfur capacity and slower reaction speed, etc.

Inactive Publication Date: 2008-04-30
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the desulfurization temperature decreases, the desulfurization accuracy of zinc oxide desulfurizer increases, but the reaction speed slows down and the sulfur capacity decreases, only 0.36% to 7.86%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0004] Embodiment 1: The normal temperature nano-desulfurization agent in this embodiment includes nano-zinc oxide and nano-iron oxide, wherein the molar ratio of nano-iron oxide and nano-zinc oxide is 1:13-47.

[0005] The addition of iron element in this embodiment inhibits the growth of zinc oxide crystal grains, reduces the particle size of the desulfurizer, and increases the sulfur capacity of the desulfurizer at room temperature. Table 1 is the comparative test data of desulfurization under the conditions of different desulfurizers at room temperature (25-30°C).

[0006] Table 1

[0007] Desulfurizer

specific Embodiment approach 2

[0008] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the molar ratio of nano-iron oxide to nano-zinc oxide is 1:15-45. Others are the same as the first embodiment.

specific Embodiment approach 3

[0009] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the molar ratio of nano-iron oxide to nano-zinc oxide is 1:20-40. Others are the same as the first embodiment.

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PUM

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Abstract

The invention relates to a normal-temperature nanometer desulfurizer and a relative preparation, wherein the mol rate between nanometer ferric oxide and nanometer zinc oxide is 1:13-47; the preparation comprises: (1), dissolving the ferric nitrate into concentrated zinc nitrate solution, to make the mol rate between zinc ion and ferric ion as 100:2-5; (2), adding aquacare based on the mol rate between metal ion and aquacare as 1:3.45; (3), arranging the solution at 85-110Deg. C, to react 1-3hours; (4), filtering, washing solid and drying; (5), baking solid, to obtain the normal-temperature nanometer desulfurizer. The diameter of desulfurizer is 12.4-14nm, with high desulfurization speed, and 10-16% sulfur capacity. The invention has simple process and low cost.

Description

technical field [0001] The present invention relates to a desulfurizer and a preparation method thereof. Background technique [0002] Zinc oxide desulfurizer has attracted the attention of domestic and foreign researchers because of its good desulfurization performance, high precision and convenient operation, but it has been mainly used in medium and high temperature desulfurization for a long time. In recent years, a large number of sulfur-containing compounds produced in the production and living process are released into the environment under normal temperature conditions, which leads to a large amount of sulfur compound pollution. When the desulfurization temperature is lowered, the desulfurization accuracy of the zinc oxide desulfurizer is improved, but the reaction speed is slowed down and the sulfur capacity is reduced, which is only 0.36% to 7.86%. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a normal temperature nanometer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/50
Inventor 闫波李芬邵纯红姜安玺徐桂芹
Owner HARBIN INST OF TECH
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