Method for rapid heating, gasification and combustion of coal under high CO2 enrichment high-pressure environment

A rapid heating and high-pressure environment technology, applied in the thermal development of materials, the preparation of test samples, etc., can solve the problems of difficult access to laboratory equipment

Pending Publication Date: 2019-04-09
TAIYUAN UNIV OF TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Previously, many researchers analyzed the influence of pressure and heating rate on the chemical reactivity of coal under the conditions of high or low heating rate and normal pressure or high pressure, but most of the previous experiments rarely used the system conditions of high pressure and high heating r...

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 rapid heating, gasification and combustion of coal under high CO2 enrichment high-pressure environment
  • Method for rapid heating, gasification and combustion of coal under high CO2 enrichment high-pressure environment
  • Method for rapid heating, gasification and combustion of coal under high CO2 enrichment high-pressure environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The present invention provides a method using CO 2 The experimental method of rapid heating and gasification combustion of coal under high pressure environment, the steps are as follows:

[0054] Ⅰ. Collection and preparation of coal samples

[0055]The collected coal samples come from the 8103 working face of Tashan Coal Mine in Shanxi. First, the collected coal samples are dried and crushed into coal particles with a diameter of 0.25-0.5 mm. Secondly, considering the influence of water content on the properties of coal samples, three different coal samples were specially selected. No. 1 coal sample is 20mg dry coal without moisture; No. 2 coal sample is 20mg coal-water mixture. It is prepared by mixing 20mg of dry coal with different water; No. 3 coal sample is prepared by immersing 20mg of dry coal particles in water placed in a vacuum chamber, and kept in a closed space with saturated water vapor for one Month, the total mass is also 20mg. Similar to the preparat...

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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for rapid heating, gasification and combustion of coal under a CO2 enrichment high-pressure environment, mainly comprising the following steps: I, collection and preparation of a coal sample: collecting a coal sample of a target coal seam, drying, hydrating, pulverizing and preparing samples of different requirements; II, laser heating: heating a gasification reaction kettle with a CO2 laser beam rapid heating device; III, control of the gas environment in the reaction kettle: constructing a CO2 enrichment environment in the reaction kettle, and controlling thevolumetric concentration of oxygen in the reaction kettle to be 1%-20.8% by adjusting the amount of injection of CO2; and IV, monitoring and analysis of the synthesis gas yield: studying and analyzing the weight loss rate of the coal samples and the amount of formation of the synthesis gas during the experiment. According to the method in the invention, the CO2 laser rapid heating device is usedfor heating the gasification reaction kettle, which rises to the target temperature in a short time, thereby avoiding slow oxidation of the coal, strengthening the weight loss rate of the coal and theyield of the synthesis gas, and improving the gasification conversion efficiency.

Description

technical field [0001] The present invention relates to a CO 2 The method for rapid heating, gasification and combustion of coal in an enriched high-pressure environment belongs to the technical field of coal gasification combined cycle power generation. Background technique [0002] According to international energy statistics, China has abundant coal resources, and its recoverable coal reserves rank third in the world. In terms of carbon dioxide emissions, China accounts for about 19% of the world's total. About 30% of the total emissions. The International Energy Agency proposes that the continued use of coal as a long-term fuel should be done in a clean and efficient manner under effective carbon management. As far as power generation technologies are concerned, improving energy efficiency is one of the levers for reducing CO2 emissions. The current technologically advanced technology of coal-fired power generation is facing two technical challenges: higher thermal ef...

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): G01N25/26G01N1/44
CPCG01N1/44G01N25/26
Inventor 李治刚佐佐木久郎张晓明菅井裕一王倩倩
Owner TAIYUAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap