Composite non-precious metal oxide catalyst for catalytic combustion of toluene and preparation method and use thereof

A non-precious metal, catalytic combustion technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, combustion method, heterogeneous catalyst chemical elements, etc., can solve the problem of high price, restricting the industrial application of precious metal catalyst, easy sintering, etc. problem, to achieve the effect of eliminating toluene, excellent low-temperature activity and thermal stability, and cost reduction

Active Publication Date: 2017-05-31
XIAN ORIGIN CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, although noble metal catalysts have good low-temperature activity, problems such as easy sintering and high price seriously restrict the industrial application of noble metal catalysts.

Method used

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  • Composite non-precious metal oxide catalyst for catalytic combustion of toluene and preparation method and use thereof
  • Composite non-precious metal oxide catalyst for catalytic combustion of toluene and preparation method and use thereof
  • Composite non-precious metal oxide catalyst for catalytic combustion of toluene and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a composite non-noble metal oxide catalyst for catalytic combustion of toluene, the catalyst is based on TiO 2 as a carrier to load on TiO 2 The composite non-noble metal oxide on the surface is the active component, and the structural formula of the composite non-noble metal oxide is: Sn 0.8 mn 0.2 o 2 , the mass of the composite non-noble metal oxide accounts for 20% of the mass of the catalyst, TiO 2 The mass accounts for 80% of the catalyst mass.

[0026] The method that present embodiment prepares this catalyst comprises the following steps:

[0027] Step 1. Take a clean beaker with a measuring range of 500mL, add 300mL of deionized water, and then weigh the measured Mn(CH 3 COO) 2 4H 2 O and SnCl 4 , then Mn(CH 3 COO) 2 4H 2 O and SnCl 4 Add it into the beaker, stir to fully dissolve the two in deionized water, then place the beaker in an ultrasonic oscillator for 0.5h ultrasonic vibration, and then add TiO 2 Powder, stir even...

Embodiment 2

[0033] This embodiment provides a composite non-noble metal oxide catalyst for catalytic combustion of toluene, the catalyst is based on TiO 2 as a carrier to load on TiO 2 The composite non-noble metal oxide on the surface is the active component, and the structural formula of the composite non-noble metal oxide is: Sn 0.7 mn 0.3 o 2 , the mass of the composite non-noble metal oxide accounts for 25% of the mass of the catalyst, TiO 2 The mass accounts for 75% of the catalyst mass.

[0034] The method that present embodiment prepares this catalyst comprises the following steps:

[0035] Step 1. Take a clean beaker with a measuring range of 500mL, add 300mL of deionized water, and then weigh the measured Mn(CH 3 COO) 2 4H 2 O and SnCl 4 , then Mn(CH 3 COO) 2 4H 2 O and SnCl 4 Add it into the beaker, stir to fully dissolve the two in deionized water, then place the beaker in an ultrasonic oscillator for 0.5h ultrasonic vibration, and then add TiO 2 Powder, stir even...

Embodiment 3

[0040] This embodiment provides a composite non-noble metal oxide catalyst for catalytic combustion of toluene, the catalyst is based on TiO 2 as a carrier to load on TiO 2 The composite non-noble metal oxide on the surface is the active component, and the structural formula of the composite non-noble metal oxide is: Sn 0.6 mn 0.4 o 2 , the mass of the composite non-noble metal oxide accounts for 20% of the mass of the catalyst, TiO 2 The mass accounts for 80% of the catalyst mass.

[0041] The method that present embodiment prepares this catalyst comprises the following steps:

[0042] Step 1. Take a clean beaker with a measuring range of 500mL, add 300mL of deionized water, and then weigh the measured Mn(CH 3 COO) 2 4H 2 O and SnCl 4 , then Mn(CH 3 COO) 2 4H 2 O and SnCl 4 Add it into the beaker, stir to fully dissolve the two in deionized water, then place the beaker in an ultrasonic oscillator for 0.5h ultrasonic vibration, and then add TiO 2 Powder, stir even...

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Abstract

The invention provides a composite non-precious metal oxide catalyst for catalytic combustion of toluene. The catalyst comprises TiO2 as a carrier and a composite non-precious metal oxide as an active component supported by TiO2. The composite non-precious metal oxide has a structural formula of Sn1-xMnxO2 and x is greater than or equal to 0.05 and less than or equal to 0.5. The catalyst comprises 10-30% by mass of the composite non-precious metal oxide. The invention also provides a preparation method of the composite non-precious metal oxide catalyst and a method for catalytic combustion of toluene through the composite non-precious metal oxide catalyst. The composite non-precious metal oxide catalyst can quickly and efficiently eliminate toluene in industrial exhaust gas.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to a composite non-noble metal oxide catalyst for catalytic combustion of toluene, a preparation method and application thereof. Background technique [0002] Toluene is a volatile organic compound that is extremely harmful to the ecological environment and human health. It is widely produced in petrochemical, printing, pharmaceutical and other production processes. In recent years, my country has successively promulgated a number of laws and regulations to help the treatment of volatile organic compounds (VOCs). The catalysts usually used for the catalytic combustion of toluene are mainly divided into two categories: noble metals such as Pt, Pd, Rh, etc., and non-precious metal oxides such as calcium Iron ore, hexaaluminate, composite metal oxide, etc. Among them, although noble metal catalysts have good low-temperature activity, problems such as easy sintering and hi...

Claims

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Application Information

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IPC IPC(8): B01J23/34F23G7/07
CPCB01J23/002B01J23/34B01J2523/00F23G7/07B01J2523/43B01J2523/47B01J2523/72
Inventor 刘程李飞仵静侯鑫黄伟兰力强庞菊玲满雪高明明
Owner XIAN ORIGIN CHEM TECH
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