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

Method for preparing nitrogen-containing liquid fertilizer by using microplasmas

A technology of micro-plasma and liquid fertilizer, applied in the direction of chemical instruments and methods, nitrogen compounds, nitrogen oxides/oxyacids, etc., can solve the problems of complex process and high energy consumption, and achieve low cost of nitrogen source and simple operation , to avoid the effect of transportation

Inactive Publication Date: 2015-01-21
SUN YAT SEN UNIV
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used nitrogen fixation method in the industry is mainly to synthesize ammonia from nitrogen and hydrogen at a ratio of three to one by using a catalyst under a certain temperature and pressure. This method is complicated in process and consumes a lot of energy.

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
  • Method for preparing nitrogen-containing liquid fertilizer by using microplasmas
  • Method for preparing nitrogen-containing liquid fertilizer by using microplasmas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] As shown in the attached figure, 300mL of pure water is introduced into the micro-plasma device, and the micro-plasma device adopts a 500mL plastic reactor. The main body of the anode is three parallel stainless steel tubes with a length of 8 cm and an inner diameter of 0.7 mm. Air is injected into the stainless steel electrode body through the pipeline from the air source to the reactor. The stainless steel electrode is placed vertically above the reaction water, and the gas outlet of the electrode is 2mm away from the water surface. The cathode is a tungsten rod with a length of 15 cm and a diameter of 1 mm. The tungsten rod is connected to the ground terminal of the DC high voltage power supply. After starting the DC high-voltage power supply, micro-plasma is generated between the stainless steel electrode and the liquid surface, and the system forms a path. Then immediately adjust the voltage to 10000V to stabilize the micro-plasma, and the discharge reaction off...

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 method for preparing a nitrogen-containing liquid fertilizer by using microplasmas. The method comprises the following specific steps that: water is introduced into a microplasma device; and an air source is switch on; air flow is adjusted; after the air flow is stable, a direct-current high-voltage power supply is switched on, a discharge reaction begins, air microplasma is formed between the positive pole of the power supply and the liquid surface of water, the air microplasma induces the plasma to have a chemical reaction so as to excite nitrogen molecules and oxygen molecules to form a large number of active particles, the active particles are combined so as to form a nitric oxide, the nitric oxide is dissolved into water to form nitric acid and nitrous acid, and an aqueous solution containing nitrate radical and nitrite radical is formed. According to the invention, a nitrogen fertilizer can be prepared in one step by using plasma; nitrogen source is low in cost; the operation is simple; the preparation equipment is small-sized and portable; and the nitrogen-containing liquid fertilizer can be prepared conveniently as required, thereby avoiding the troubles in transportation, storage and preservation.

Description

technical field [0001] The invention relates to a preparation method of nitrogen-containing liquid fertilizer, in particular to a method for preparing nitrogen-containing liquid fertilizer by microplasma. Background technique [0002] Fixing nitrogen in the air and converting it into useful nitrogen raw materials has always been a subject of concern to scientists from all over the world. The nitrogen fixation method commonly used in industry is mainly to synthesize ammonia from nitrogen and hydrogen at a ratio of three to one by using a catalyst under a certain temperature and pressure. This method is complicated in process and consumes a lot of energy. Therefore, economical and efficient nitrogen fixation requires the development of new technologies in addition to improving existing technologies. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a method for preparing nitrogen-containing liquid fertilizer by microplas...

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): C01B21/48C01B21/50C05C13/00
Inventor 杜长明
Owner SUN YAT SEN UNIV
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