Mild coal-family component separation method based on extraction and back extraction

A separation method and a technology of family components, applied in solid solvent extraction, petroleum industry, solid fuel, etc., can solve the problems of not fully considering the composition characteristics of hydrocarbons, low utilization rate of environmental pollution, etc., to improve the use value and environmental protection Benefits, gentle extraction and stripping, effects of solvent recycling

Inactive Publication Date: 2007-11-14
CHINA UNIV OF MINING & TECH
View PDF0 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows us to separate various types of fractions called crude oil, cleaned coal, crushed products, etc., which make up our main ingredients during combustion processes. These fractions have specific characteristics - they contain mostly solid matter but some liquid ones – making them ideal targets for upgradation purposes. By separating these three parts separately we aim to improve their usefulness and reduce waste generation associated with burning fossils fuels.

Problems solved by technology

This patented technical problem addressed by this patents relates to efficiently converting multiple component types (petrol) containing varying compositions within one type of coal without causing excessive heat input that could damage equipment during subsequent processes.

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
  • Mild coal-family component separation method based on extraction and back extraction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: to the coal commodity sample that carbon content is 86.5% (W%, daf), make < 100 mesh coal samples through pulverization, carry out group component separation according to the following steps:

[0025] ①. Put 8g of coal sample in the extractor, then add the mixed solvent, the amount of which is 100ml of mixed solvent per gram of coal sample, add 800mL of mixed solvent, the mixed solvent is a mixture of solvent A and solvent B, the mixed solvent The ratio is 1:1, and the mixing ratio is a volume ratio; solvent A is selected from carbon disulfide, solvent B is selected from N-methyl-2-pyrrolidone, and magnetically stirred at room temperature for 120 minutes, and an extraction process is completed to obtain an extracted solid-liquid mixture ;

[0026] ②. Solid-liquid separation is carried out on the extracted solid-liquid mixture extracted in process ①. The solid-liquid separation adopts the centrifugal separation method, and the extracted solid-liquid mixture...

Embodiment 2

[0038] Embodiment 2: be the coal commodity sample of 85.0% (W%, daf) to carbon content, make <120 mesh coal samples through pulverization, carry out group component separation according to the following steps:

[0039] 1. Place 6g coal sample in the extractor, then add mixed solvent, the amount added is 90 milliliters of mixed solvent per gram of coal sample, the mixed solvent is a mixture of solvent A and solvent B; stir at room temperature for 90 minutes, After one extraction process is completed, the extracted solid-liquid mixture is obtained; the above-mentioned process is repeated 5 times, and the extracted solid-liquid mixture obtained 5 times is combined;

[0040] ②. Solid-liquid separation is carried out on the extracted solid-liquid mixture extracted in the process ①, and the extract and raffinate are respectively obtained after solid-liquid separation;

[0041] ③, the raffinate in the process ② is processed, first washed with water, and then vacuum-dried to obtain th...

Embodiment 3

[0051] Embodiment 3: be the coal commodity sample of 83.9% (W%, daf) to carbon content, make <80 purpose coal samples through pulverization, carry out group component separation according to the following steps:

[0052] 1. Place 10g of coal sample in the extractor, then add mixed solvent, the amount of addition is 110 milliliters of mixed solvent per gram of coal sample, the mixed solvent is a mixture of solvent A and solvent B; stir at room temperature for 60 minutes, The extraction process is completed, and the extracted solid-liquid mixture is obtained; the above-mentioned process is repeated 4 times, and the extracted solid-liquid mixture obtained 4 times is combined;

[0053] 4. Process the extract in the process ②, put the extract into the stripper, then add the stripper to the stripper, the amount of the stripper is equal to 1 by the extract ratio of the stripper: 0.1, the ratio is a volume ratio, stirred at room temperature for 30 minutes, the stripping process is ove...

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 relates to a method to separate temperate coal race component based on the extract and the stripping, which belongs to the separating method of the coal race component. Join the component solvent into the coal sample, agitate it and obtain the extract liquid-solid mixture; Carries on the liquid-solid separation to the extract liquid-solid mixture, obtains the extracted liquid and the gathering excess separately; To gathers the excess water used wash, then the vacuum drying, obtains gathers -odd coal; Joins the stripping medicinal preparation in the extracted liquid, the agitation, obtains the stripping liquid-solid mixture and carries on the liquid-solid separation to it, obtains the solid matter and the wet goods; To solid matter water used wash, dry, obtains the refined coal; The wet goods are two laminations: To a lamination takes off resolve A with the atmospheric pressure distillation, carries on the stripping again to the surplus solution, will produce sticks the thick shape solid, carries on the drying process to it, obtains the caking component; Another lamination is mainly resolved B and the stripping medicinal preparation omnium-gatherum. We bench work skill process is simple, the extract and the stripping process is temperate, the resolved recycle, the reaction process is advantageous for the control, can cause the coal petroleum to separate Cheng Cuiyu the coal, the refined coal, the caking group to classify many kinds of unique race components equally in advance likely.

Description

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

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
Owner CHINA UNIV OF MINING & 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