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Propane complete oxidation catalyst as well as preparation method and application thereof

A technology of complete oxidation and catalyst, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc.

Inactive Publication Date: 2014-08-20
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the high-altitude exhaust tower is the most widely used, it only dilutes the pollutants and does not treat them in essence. It is no longer the first choice for pollution control in semi-enclosed spaces.

Method used

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  • Propane complete oxidation catalyst as well as preparation method and application thereof

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Experimental program
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Embodiment 1

[0016] Weigh 3.18g of Na 2 CO 3 Dissolve in 30mL deionized water to prepare 1mol / L Na 2 CO 3 Solution; Weigh 8.00g of Cr(NO 3 ) 3 9H 2 Dissolve O in 20mL deionized water to prepare 1mol / L chromium solution; drop the chromium solution into the alkali solution drop by drop, react in a water bath at 50°C for 1h, wash with deionized water until neutral, dry at 100°C, and roast at 300°C for 3h. CrO x .

Embodiment 2

[0018] Weigh 2.12g of Na 2 CO 3 Dissolve in 20mL deionized water to prepare 1mol / L Na 2 CO 3 Solution; 7.16g 50% mass fraction of Mn(NO 3 ) 2 Dilute the solution to 20mL 1mol / L manganese solution; drop the manganese solution into the alkali solution drop by drop, react in a water bath at 50°C for 1h, wash with deionized water until neutral, dry at 100°C, and roast at 300°C for 3h to obtain MnO x .

Embodiment 3

[0020] Weigh 3.18g of Na 2 CO 3 Dissolve in 30mL deionized water to prepare 1mol / L Na 2 CO 3 Solution; Weigh 8.08g of Fe(NO 3 ) 3 9H 2 Dissolve O in 20mL deionized water to prepare 1mol / L iron solution; drop the iron solution into the alkali solution drop by drop, react in a water bath at 50°C for 1h, wash with deionized water until neutral, dry at 100°C, and roast at 300°C for 3h. Get Fe 2 o 3 .

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Abstract

The invention discloses a preparation method of propane complete oxidation catalyst. The preparation method comprises the following steps: dropwise dripping 1 mol / L transition metal salt solution into 1 mol / L sodium carbonate solution which is in a stoichiometric ratio to the transition metal salt solution; reacting for 1 to 3 hours at 20 to 80 DEG C; washing a reaction product to neutral, drying at 60 to 100 DEG C, and roasting for 3 to 6 hours at 300 to 500 DEG C to obtain the propane complete oxidation catalyst, wherein the stoichiometric ratio is as follows: the molar ratio of Co<2+>, Mn<2+>, Cu<2+> and Ni<2+> to CO3<2-> is respectively 1:1, and the molar ratio of Fe<3+> and Cr<3+> to the CO3<2-> is respectively 2:3. The transition metal oxide obtained by the invention can be applied to the complete catalytic oxidation reaction of various types of hydrocarbons of C3H3, C3H6, CH4 and the like, and has good reactivity.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a propane complete oxidation catalyst and its preparation method and application. Background technique [0002] As the number of motor vehicles increases year by year, motor vehicle exhaust (PM (particulate matter), CO, NO x and HC (hydrocarbons)) have become one of the main pollution sources of urban air. In recent years, in order to solve the traffic pressure, more and more semi-enclosed spaces such as underground parking lots, street passages and tunnels have been built, in which the accumulation of pollutants is more serious, and the problem of air pollution control and prevention in semi-enclosed spaces needs to be resolved urgently. [0003] At present, there are two main plans for air treatment in semi-enclosed spaces at home and abroad: first, build a high-altitude exhaust tower with a large air volume; second, install dust removal and pollutant purification devices (c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75B01J23/889B01J23/86B01J23/34B01J23/755B01J23/72B01J23/745B01J23/26B01D53/86B01D53/72
Inventor 何丹农赵昆峰高振源董亚梅王婷
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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