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Component of gasoline engine particulate filter and preparation method of component

A particle filter and gasoline engine technology, which is applied to ceramic products, other household appliances, household appliances, etc., can solve the problem of unsuitable gasoline engine exhaust particle filtration, etc., and achieve the effect of preventing the pore size from being too small and improving the reaction activity

Inactive Publication Date: 2015-11-18
YIXING PRINCE CERAMICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: the purpose of the present invention is to solve the problem that the existing diesel particulate filter is not suitable for filtering gasoline engine exhaust particles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A composition of gasoline engine particulate filter, comprising 35 parts of talcum powder, 10 parts of aluminum hydroxide, 15 parts of kaolin, 10 parts of silica micropowder, 15 parts of boehmite, 1 part of binding agent, 25 parts of pore-forming agent, 1 part lubricant and 25 parts water. The binder includes 1 part hydroxypropyl methylcellulose. The pore-forming agent includes 5 parts of fruit shell powder, 10 parts of starch and 10 parts of high molecular plastic particles. The lubricant includes 1 part stearic acid. The talcum powder is talcum powder with low alkali sodium, low potassium and low calcium content.

[0025] The average particle size of the talc powder is 10 μm, the average particle size of aluminum hydroxide is 5 μm, the average particle size of silicon micropowder is 10 μm, the average particle size of kaolin is 3 μm, and the average particle size of boehmite is 2 μm. The average particle size of the graphite is 20 μm.

[0026] A preparation method...

Embodiment 2

[0038] A composition of gasoline engine particle filter, comprising 40 parts of talcum powder, 15 parts of aluminum hydroxide, 5 parts of kaolin, 15 parts of silica micropowder, 15 parts of boehmite, 2 parts of binding agent, 30 parts of pore-forming agent, 5 parts lubricant and 30 parts water. The binder includes 2 parts of hydroxypropyl methylcellulose and 2 parts of methylcellulose. The pore-forming agent includes 10 parts of graphite, 10 parts of starch and 10 parts of polymer plastic particles. The lubricant included 2 parts mineral oil. The talcum powder is talcum powder with low alkali sodium, low potassium and low calcium content.

[0039] The average particle size of the talc powder is 30 μm, the average particle size of aluminum hydroxide is 15 μm, the average particle size of silicon micropowder is 30 μm, the average particle size of kaolin is 7 μm, and the average particle size of boehmite is 5 μm. The average particle size of the graphite is 70 μm.

[0040] A ...

Embodiment 3

[0052] A composition of gasoline engine particle filter, comprising 45 parts of talcum powder, 15 parts of aluminum hydroxide, 15 parts of kaolin, 10 parts of silica micropowder, 5 parts of boehmite, 4 parts of binding agent, 40 parts of pore-forming agent, 3 parts lubricant and 35 parts water. The binder includes 0-4 parts of hydroxypropyl methylcellulose and 0-4 parts of methylcellulose. The pore-forming agent includes 15 parts of fruit shell powder and 25 parts of high molecular plastic particles. The lubricant included 2 parts mineral oil and 1 part stearic acid. The talcum powder is talcum powder with low alkali sodium, low potassium and low calcium content.

[0053] The average particle size of the talc powder is 20 μm, the average particle size of aluminum hydroxide is 10 μm, the average particle size of silicon micropowder is 20 μm, the average particle size of kaolin is 5 μm, and the average particle size of boehmite is 4 μm. The average particle size of the graphi...

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Abstract

The invention discloses a component of a gasoline engine particulate filter and a preparation method of the component. The component comprises 35-45 parts of talc powder, 10-15 parts of aluminium hydroxide, 5-15 parts of kaolin, 10-15 parts of silica powder, 5-15 parts of boehmite, 0-4 parts of hydroxypropyl methyl cellulose, 0-10 parts of graphite powder, 5-15 parts of shell powder, 0-10 parts of starch, 10-25 parts of high-molecular plastic particles, 0-2 parts of mineral oil, 0-1 part of stearic acid and 25-35 parts of water. Raw materials, namely, the talc powder, the aluminium hydroxide, the kaolin, the silica powder and the boehmite, are mixed firstly, then a pore-forming agent is added in proportion, finally, a binder is added, cross pore blockage is performed, the gasoline engine particulate filter is prepared through sintering, the porosity of the prepared gasoline engine particulate filter is up to 60%-65%, the pore diameter is up to 20-30 mu m, the porosity of a carrier is greatly increased, the pore diameter is increased, so that the exhaust fluency of the carrier is improved, and blockage is prevented.

Description

technical field [0001] The invention relates to a gasoline engine particulate filter, in particular to a composition of the gasoline engine particulate filter and a preparation method thereof. Background technique [0002] As people pay more attention to environmental protection, more and more stringent gasoline vehicle emission regulations will be formulated and implemented. On May 6, 2015, the International Symposium on Motor Vehicle Emission Control Technology and Supervision was held in Wuhan. In terms of the implementation date of China VI, strive to implement it nationwide in 2020 (using the Chinese working condition system), referring to Euro 5 and Euro 6 standards Introduces particulate mass emission standards for positive ignition vehicles fitted with direct ignition engines. Gasoline engine exhaust particles are small, low in concentration, and high in temperature. When applied to a gasoline engine particulate filter (GPF) carrier, it needs to withstand thermal sh...

Claims

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Application Information

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IPC IPC(8): C04B38/00C04B35/16
Inventor 陈易秋沈琴娟
Owner YIXING PRINCE CERAMICS
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