Magnetic attraction-oxidation desulfurizing agent and preparation method

A technology of oxidative desulfurization and magnetic adsorption, applied in the direction of chemical instruments and methods, physical/chemical process catalysts, alkali metal oxides/hydroxides, etc., can solve the problem of excessive vehicle exhaust emissions, air pollution, and unprepared magnetic adsorption- Oxidative desulfurization agent and other issues to achieve the effect of reducing desulfurization cost, avoiding energy waste, and improving catalytic oxidation desulfurization activity

Inactive Publication Date: 2019-07-30
LIAONING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The fuel oil with high sulfur content in the finished product will lead to excessive vehicle exhaust emissions and cause serious pollution to the atmosphere
However, there is no report on the preparation of magnetic adsorption-oxidative desulfurization agent by combining peroxopolyacid compound, magnetic iron composite oxide containing iron and lanthanide metals, and silica.

Method used

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  • Magnetic attraction-oxidation desulfurizing agent and preparation method
  • Magnetic attraction-oxidation desulfurizing agent and preparation method
  • Magnetic attraction-oxidation desulfurizing agent and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: HPW / La x Fe y o z &SiO 2 Synthesis

[0040] Synthesis of silanized ferromagnetic composite oxide LaxFeyOz&SiO according to the synthesis method of Comparative Example 4 2 .

[0041] Under the conditions of normal temperature, normal pressure and stirring, phosphotungstic acid was added to water according to the mass ratio of 0.01:1, and the pH value of the solution was adjusted to 4.0 to obtain solution A. The silanized magnetic iron composite oxide LaxFeyOz&SiO 2 According to the mass ratio of 20:1, it was added to solution A, shaken and stirred for 0.5h, dried into powder at a temperature of 120°C, and then roasted at a temperature of 300°C for 24h to obtain an adsorption-oxidation desulfurizer, recorded as HPW / LaxFeyOz&SiO 2 .

Embodiment 2

[0042] Example 2: HPMo / La x Fe y o z &SiO 2 Synthesis

[0043] Synthesis of silanized ferromagnetic composite oxide LaxFeyOz&SiO according to the synthesis method of Comparative Example 4 2 .

[0044] Under the conditions of normal temperature, normal pressure and stirring, phosphomolybdic acid was added to water according to the mass ratio of 0.01:1, and the pH value of the solution was adjusted to 4.0 to obtain solution A. The silanized magnetic iron composite oxide LaxFeyOz&SiO 2 According to the mass ratio of 20:1, it was added to solution A, shaken and stirred for 0.5h, dried into powder at a temperature of 120°C, and then roasted at a temperature of 300°C for 24h to obtain an adsorption-oxidation desulfurizer, recorded as HPMo / LaxFeyOz&SiO 2 .

Embodiment 3

[0045] Embodiment 3: HPW / Ce x Fe y o z &SiO 2 Synthesis

[0046] Synthesis of silanized ferromagnetic composite oxide CexFeyOz&SiO according to the synthesis method of Comparative Example 5 2 .

[0047] Under the conditions of normal temperature, normal pressure and stirring, phosphotungstic acid was added to water according to the mass ratio of 0.01:1, and the pH value of the solution was adjusted to 4.0 to obtain solution A. The silanized magnetic iron composite oxide CexFeyOz&SiO 2 According to the mass ratio of 20:1, it was added to solution A, shaken and stirred for 0.5h, dried into powder at a temperature of 120°C, and then roasted at a temperature of 300°C for 24h to obtain an adsorption-oxidation desulfurizer, recorded as HPW / CexFeyOz&SiO 2 .

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Abstract

The invention discloses a magnetic attraction-oxidation desulfurizing agent and a preparation method. The magnetic attraction-oxidation desulfurizing agent is formed by compounding a magnetic iron composite oxide containing iron and lanthanide series metal, silicon dioxide and a peroxided polyacid compound, wherein the magnetic iron composite oxide containing the iron and the lanthanide series metal is coated with the silicon dioxide, and the peroxided polyacid compound is supported on the outer surface of the silicon dioxide, and the mass ratio of the magnetic iron composite oxide containingthe iron and the lanthanide series metal to the silicon dioxide to the peroxided polyacid compound is (10-50):(5-30):(85-20). The preparation method comprises the steps that the magnetic iron composite oxide containing the iron and the lanthanide series metal is subjected to silanization to prepare the silicon dioxide-coated magnetic iron composite oxide containing the iron and the lanthanide series metal, and the peroxided polyacid compound is supported on the outer surface of the silicon dioxide, and through washing, drying and calcination, the magnetic attraction-oxidation desulfurizing agent is prepared.

Description

technical field [0001] The invention relates to a desulfurizer and a preparation method, in particular to a magnetic adsorption-oxidation desulfurizer with simple preparation process, recyclable use and high activity and a preparation method. Background technique [0002] Fuel oil with high sulfur content in the finished product will lead to excessive vehicle exhaust emissions and cause serious pollution to the atmosphere. It is imperative to develop ultra-low-sulfur clean oil products, and the deep desulfurization technology of oil products has become the focus of current research workers. [0003] The Chinese patent announcement number is the invention patent of CN103331142A, which discloses "a magnetic adsorbent, its preparation method and its application in fuel oil desulfurization". The disclosed magnetic adsorbent is composed of a carrier and an adsorption component. The carrier is a core-shell composite microsphere, and the adsorption component is one or more of silv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/10B01J20/28B01J20/30B01J27/188B01J31/18C10G25/00C10G27/00
CPCB01J20/103B01J20/28009B01J20/3078B01J27/188B01J35/0033C10G25/003C10G27/00C10G2300/202C10G2300/70
Inventor 马康富陈立东廖林王军霞李彦昕赵颖马子宁赵月琳付丽华丁玲金明珠
Owner LIAONING NORMAL UNIVERSITY
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