Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Highly effective purification and adsorption agent for diesel engine tail gas

An exhaust gas purification and diesel engine technology, applied in mechanical equipment, exhaust devices, engine components, etc., can solve the problem of unsatisfactory absorption effect of absorbent, and achieve the effects of cost safety, non-toxicity, strong affinity, and simple equipment structure.

Inactive Publication Date: 2006-07-19
NANJING UNIV OF SCI & TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the absorption effect of these absorbents is not very good

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The high-efficiency diesel engine exhaust gas purification absorbent of the present invention comprises attapulgite clay, NaOH, water, and the attapulgite clay, NaOH and water are uniformly mixed to form a colloidal absorption liquid, and the weight percentage of the attapulgite clay in the colloidal absorption liquid is The concentration is 20-45%, and the concentration of NaOH is 0.1-1.0% by weight.

[0008] Among them, the attapulgite clay is selected from the attapulgite clay produced in northern Jiangsu, in powder form, with a particle size of 45-80 μm and a specific surface area of ​​425m 2 / g; NaOH is industrial grade. Dissolve the attapulgite clay in water, add NaOH, and stir evenly to obtain a colloidal absorption solution. The attapulgite clay in the colloidal absorption solution has a weight percentage concentration of 28% (w), and a NaOH weight percentage concentration of 0.75%. (w). The prepared absorbing liquid is added to the reactor, and the exhaust ga...

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 discloses a high-effective purifying absorber of diesel engine tail gas, which comprises the following parts: concave-convex bar-stone clay, NaOH and water, wherein the NaOH and water are mixed evenly to prepare the colloid-typed absorption liquid, whose weight percent density of concave-convex bar-stone clay is 20-45 percent with 0.1-1.0 percent for NaOH. The invention displays stronger affinity force to improve the wetting property, which makes the carbon smoke particle agglomerate and wet in the colloid solution to accelerate the NO conversion and stripping.

Description

a technical field [0001] The invention relates to a diesel engine tail gas purification technology, in particular to an efficient diesel engine tail gas purification absorbent. Two background technology [0002] There are dry method and wet method for diesel engine exhaust purification treatment. The wet method is to use absorbents to absorb particulate matter and other harmful pollutants in the exhaust gas to achieve the purpose of purifying emissions. The commonly used absorbent is mainly clear water, but since the particulate matter produced by diesel engines is a kind of non-polar solid particles that are not easily wetted by water, only a small part of the polar particles are hydrophilic; while the main components of nitrogen oxides are Nitric oxide (accounting for about 90% of the total nitrogen oxides) has very little solubility in water. Therefore, the removal rate of the two main harmful substances (particulate matter and nitrogen oxides) in diesel engine exhaust ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/92B01D53/14F01N3/04
Inventor 钟秦邹建国
Owner NANJING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com