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Normal temperature nanometer desulfurizing agent and its preparation process

A desulfurization agent, nanotechnology, applied in the field of desulfurization agent and its preparation, can solve the problems of slow reaction speed and reduced sulfur capacity

Inactive Publication Date: 2007-02-07
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: In this embodiment, the room temperature nano-desulfurizer includes nano-zinc oxide and nano-iron oxide, wherein the molar ratio of nano-iron oxide to nano-zinc oxide is 1:13-47.

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

[0006] Desulfurizer

specific Embodiment approach 2

[0007] 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

[0008] 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 invention relates to a desulfurizing agent and a preparation method thereof. Background technique [0002] Zinc oxide desulfurizer has attracted the attention of researchers at home and abroad for 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 compounds produced in the production and living process have been released into the environment under normal temperature conditions, which has led to a large amount of sulfur compound pollution. When the desulfurization temperature decreases, the desulfurization precision of the zinc oxide desulfurizer increases, but the reaction speed slows down and the sulfur capacity decreases, which is only 0.36% to 7.86%. Contents of the invention [0003] The object of the present invention is to provide a normal temperature nano desulfurizer and a prepa...

Claims

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Application Information

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Patent Type & Authority Applications(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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