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

Enrichment and rapid determining method for heteroatom-containing organic compounds in soluble lignite component

A technology for the rapid determination of organic compounds, applied in the direction of measuring devices, analysis materials, preparation of test samples, etc., can solve the problems of undetectable analysis and low concentration

Inactive Publication Date: 2018-11-06
CHINA UNIV OF MINING & TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that part of heteroatom-containing organic compounds in lignite soluble components cannot be detected and analyzed due to low concentration, and to provide a rapid Efficient enrichment method to obtain more comprehensive and accurate lignite structure and composition information

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
  • Enrichment and rapid determining method for heteroatom-containing organic compounds in soluble lignite component
  • Enrichment and rapid determining method for heteroatom-containing organic compounds in soluble lignite component
  • Enrichment and rapid determining method for heteroatom-containing organic compounds in soluble lignite component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for rapid enrichment and determination of heteroatom-containing organic compounds in lignite soluble components, specifically comprising the following steps:

[0022] Step 1: Use a tetrafluoroethylene filter membrane to filter the residual solid particles in the methanol-soluble components of Inner Mongolia Dongming lignite, take 1 ml of the sample and place it in a transparent glass bottle with a capacity of 2 ml, seal it and let it stand at room temperature for 10 minute.

[0023] Step 2: Select a self-made polypyrrole film as the solid-phase microextraction coating, and age for 15 minutes between the direct real-time analysis ion source and the injection port before use. The ion source parameters during the aging process are: carrier gas nitrogen; carrier gas flow rate 3 L / min; carrier gas pressure 5 MPa; carrier gas temperature 200 degrees Celsius.

[0024] Step 3: Insert the aging-treated polypyrrole coating into a sample bottle to ensure full contact bet...

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

An enrichment and rapid determining method for heteroatom-containing organic compounds in a soluble lignite component comprises the following steps: step 1: filtering residual solid particles in the soluble lignite component by using a tetrafluoroethylene filter film, placing a supernatant sample obtained after filtration into a sample bottle, sealing the bottle and allowing the bottle to stand still at room temperature; step 2: selecting a self-made polypyrrole film as a solid phase micro-extraction coating, and aging the coating between a direct real-time analysis ion source and a sample inlet before use; step 3: inserting the aged polypyrrole coating into the transparent glass bottle where the sample is located while ensuring that the coating is in sufficient contact with the sample, and extracting at room temperature; step 4: placing a completely enriched coating between the direct real-time analysis ion source and the electrostatic field orbitrap mass spectrometer sample inlet fordetection; step 5: placing a solid phase micro-extraction coating obtained after the detection into methanol for washing, and then drying. According to the method, the solid phase micro-extraction technology is applied to the enrichment and rapid determining of the heteroatom-containing organic compounds in the soluble lignite component.

Description

technical field [0001] The invention relates to rapid enrichment and detection and analysis technology of lignite organic soluble components, in particular to a rapid detection method for components containing heteroatoms (mainly oxygen and nitrogen). Background technique [0002] my country is relatively rich in lignite resources, and the proven lignite reserves are about 130 billion tons, accounting for 13% of the national coal reserves. In my country, coal is mainly used for thermal power generation. However, as a low-rank coal, lignite has high water content, low calorific value, high ash content, and poor thermal stability, making it unfavorable for burning as a fuel. At present, the conversion process of coal to coal-based liquid based on coal liquefaction technology is a means to solve the problems of oil shortage and low utilization rate of lignite. The analysis of the structure and composition of different components in coal-based liquid provides a theoretical bas...

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): G01N27/62G01N1/28G01N1/34G01N1/40
CPCG01N1/28G01N1/34G01N1/40G01N27/62
Inventor 樊星王楚凡魏贤勇赵云鹏王瑞玉董雪明宗志敏
Owner CHINA UNIV OF MINING & 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