Catalyst oxide for changing quality of fossil fuel

A technology for oxidation catalysts and fossil fuels, used in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, catalyst activation/preparation, etc., to reduce the amount of black smoke and NOX.

Inactive Publication Date: 2005-05-04
满超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As a method of solving these problems, although some experiments have been carried out in the past, most of them install a device in a part of the exhaust pipe, mainly by adsorbing the exhaust gas after combustion or treating it with a catalyst, which are all related to fuel consumption. Improvement of combustion efficiency independent of method

Method used

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  • Catalyst oxide for changing quality of fossil fuel
  • Catalyst oxide for changing quality of fossil fuel
  • Catalyst oxide for changing quality of fossil fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In CeO 2 35.7% by weight, ThO 2 20% by weight, ZrO 2 20% by weight, SnO 2 0.3 wt%, CuO 2 0.2% by weight, CoO 0.7% by weight, MgO 2 8.8% by weight of oxidized clay was mixed with 15% by weight, and crushed to a particle size of 250 mesh.

[0055] Add water to the above mixture, mix and shape, form a reduced burning state in a reduction furnace at 800-850°C, and heat up to 1350°C for sintering. burning conditions such as figure 1 As shown, it takes 4 hours to heat up to 1350°C, take 30 minutes to cool down to 1280°C, keep at 1280°C for 3 hours, take 30 minutes to heat up to 1350°C, take 30 minutes to drop to 1280°C and keep for 3 hours, use The temperature was raised to 1350° C. in 30 minutes, lowered to 1280° C. in 30 minutes and sintered for 4 hours.

[0056] The ceramic catalyst thus obtained can be used in various shapes. In the case of a spherical shape, a size with a diameter of about 8 to 10 mm has a large contact area, so the effect is good.

Embodiment 2

[0058] 15.7 wt% of oxidized clay is mixed with Ce27 wt%, Co7 wt%, Th20 wt%, Zr18 wt%, Mg4 wt%, Sn1.2 wt%, Pd4.8 wt%, Ni0.9 wt%, Mo1.4 wt% %, crushed to 250 mesh.

[0059] Add water to the above mixture, mix and shape, form a reduced burning state at 800°C in a reduction furnace, and heat up to 1450°C for sintering. burning conditions such as figure 2 As shown, it takes 3 hours to raise the temperature to 1450°C, take 1 hour to raise the temperature to 1450°C, take 30 minutes to drop from 1450°C to 1320°C and keep it for 4 hours, take 30 minutes to raise the temperature to 1450°C and keep it for 1 hour, and take 30 minutes to drop To 1320°C and keep it for 4 hours, take 30 minutes to raise the temperature to 1450°C and keep it for 1 hour, take 30 minutes to drop to 1320°C and sinter for 4 hours.

[0060] The ceramic oxidation catalyst manufactured in the above-mentioned manner is spherical (8~10mm), and the catalyst that adds 50% by weight of palladium, 15% by weight of magn...

Embodiment 3

[0063] The ceramic oxidation catalyst 1 manufactured according to the above-mentioned embodiment 1 is made into a spherical shape (8-10 mm), such as image 3 As shown, the oxide ceramic catalyst coated with a platinum-rhenium catalyst within 2mm and increasing the total weight by about 20% by weight is filled into Mazuda (Mazda?) Diesel engine vehicles KC-WGE4T and KC-WGEAT ( 2t car) in the stainless steel container 5 connected to the piping between the light oil fuel tank 3 and the engine 4. The amount of black smoke, NO X The amount (g / kwh), the amount of CO (g / kwh), the amount of HC (g / kwh) and the amount of PM (g / kwh) were tested. The results are shown in Table 1 below.

[0064] Exhaust gas composition

CO

HC

NO X

PM

Akishima Laboratory Test Results

5.781

1.420

4.558

0.694

National benchmark value (2t vehicle)

9.200

3.800

7.800

0.960

Measured value before instal...

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Abstract

An object of the invention is to provide a catalyst capable of reducing both the black smoke quantity and the NOx quantity in exhaust gases. This invention provides, in a catalyst oxide for changing quality of fuel arranged between a petroleum fuel tank and a combustion chamber of the engine, a catalyst oxide for changing quality of fossil fuel, said catalyst oxide having, as main components, cerium oxide, zirconium oxide, thorium oxide, magnesium oxide and clay, comprising a ceramics catalyst oxide for subjecting petroleum fuel having said main components reduction-sintered to contact decomposition, and a catalyst oxide containing platinum.rhenium or palladium.

Description

technical field [0001] The invention relates to modifying petroleum fuels to greatly reduce the amount of black smoke and NO in exhaust gas X A low fuel consumption, low pollution oxidation catalyst that increases power and improves fuel consumption performance. Background technique [0002] For new cars or vehicles with a driving distance of less than tens of thousands of kilometers, due to the good combustion efficiency of the engine, the amount of harmful gases mixed in the exhaust gas is also at a low level. [0003] However, when it is used all the year round and the driving distance increases, the combustion efficiency decreases and the generation of harmful gases increases. In particular, in diesel engines fueled by light oil, the amount of black smoke and NO in exhaust gas X This is one of the reasons for serious air pollution. [0004] As a method of solving these problems, although some experiments have been carried out in the past, most of them install a device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M27/02B01J23/825B01J23/835B01J23/89B01J37/00B01J37/08B01J37/16B01J37/18
CPCB01J23/8986B01J37/08B01J37/0009B01J23/835B01J23/8993B01J37/18
Inventor 舩山二郎
Owner 满超
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