Heterogeneous catalysis wet oxidation catalyst taking volcanic rock as carrier and preparation method thereof

A heterogeneous catalysis and wet oxidation technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of low COD removal rate

Inactive Publication Date: 2014-01-22
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is the low removal rate of COD in the heterogeneous catalytic wet

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heterogeneous catalysis wet oxidation catalyst taking volcanic rock as carrier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Immerse 1.98g of volcanic rock in 0.052g of RuCl 3 in solution. Impregnated at room temperature for 6h, then dried in an oven at 110°C for 16h, then calcined in a muffle furnace at 450°C for 5h to obtain the catalyst precursor, and finally reduced with hydrogen at 400°C for 4h to obtain the finished catalyst.

[0022] In the foregoing examples, the same evaluation conditions for heterogeneous catalyzed wet oxidation reactions are:

[0023] Reactor: fixed bed reactor, inner diameter 22 mm, reactor length 800 mm

[0024] Filling volume: 300ml

[0025] Reaction temperature: 290°C

[0026] Reaction pressure: 9.0MPa

[0027] Industrial organic wastewater COD: 15000mg / l

[0028] Gas-liquid volume ratio: 150

[0029] The COD value of the reaction product was measured with a COD analyzer from Hach Company. The COD value of the organic industrial wastewater after the reaction was measured to be 975mg / l, and the COD removal rate was 93.5%.

[0030]

Embodiment 2-4

[0032] The steps in Examples 2-4 are the same as in Example 1, except that the type and load of the noble metal are different. The specific conditions and results are listed in Table 1.

[0033]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a catalyst for treating industrial organic wastewater by a heterogeneous catalysis wet oxidation process and a preparation method thereof, which are mainly used for solving the problem of low COD removal rate in the prior art. The heterogeneous catalysis wet oxidation catalyst taking volcanic rock as a carrier comprises the following components in parts by weight: A: 97.5-99.7 parts of volcanic rock and B loaded on A: 0.3-2.5 parts of at least one precious metal of Ru, Pd, Pt and Au. By adopting the catalyst and the preparation method thereof, the problem is perfectly solved, and the catalyst can be used for treating industrial organic wastewater.

Description

technical field [0001] The invention relates to a heterogeneous catalytic wet oxidation catalyst with volcanic rock as a carrier and a preparation method thereof. Background technique [0002] Wet oxidation is a method developed in the 1950s to treat toxic, harmful and high-concentration organic wastewater by using simple substance-oxygen under high pressure and high temperature conditions. In the 1970s, catalytic wet oxidation was developed on the basis of wet oxidation to improve wastewater treatment efficiency and reduce reaction conditions. Catalytic wet oxidation technology can treat wastewater alone or as a pretreatment of biochemical treatment. Through wet oxidation, the COD of wastewater can be reduced, toxic and harmful substances to biochemical bacteria can be removed, and the biodegradability of wastewater can be improved. On the other hand, with the increasing pressure of energy saving and consumption reduction, environmental protection control is becoming more ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J23/89C02F1/74
Inventor 郑育元汪国军郭宗英陈航宁
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap