Supercharge Your Innovation With Domain-Expert AI Agents!

Method and device for producing coal tar and method and device for producing fuel oil from coal

A coal tar and fuel oil technology, applied in the field of coal pyrolysis, can solve the problems of poor oil quality, high energy consumption, complex process flow, etc., and achieve the effects of improving oil quality, simplifying process flow, and reducing production costs

Active Publication Date: 2022-05-13
CHNA ENERGY INVESTMENT CORP LTD +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method and device for producing coal tar and a coal-to-fuel oil production method in order to solve the problems of complicated process flow, high energy consumption and poor quality of the obtained oil in the existing method for producing coal tar. The method and device, the method directly sends the gaseous pyrolysis oil gas produced by coal pyrolysis into a fluidized decarbonization unit for catalytic decarbonization reaction, which not only can simplify the process flow, significantly reduce energy consumption and cost, but also enable The content of heteroatoms such as heavy components, sulfur, and nitrogen in the final oil product is greatly reduced, and the quality of the oil product is significantly improved

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 and device for producing coal tar and method and device for producing fuel oil from coal
  • Method and device for producing coal tar and method and device for producing fuel oil from coal
  • Method and device for producing coal tar and method and device for producing fuel oil from coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0091] According to a preferred embodiment of the present invention, the method for coal-to-fuel oil of the present invention comprises:

[0092] (a) drying the raw coal to obtain dry coal and dust-containing gas, performing first gas-solid separation on the dust-containing gas to obtain the first solid particles, and then contacting the dry coal and the first solid particles with the hydrogen-containing gas for thermal Decomposition reaction to obtain pyrolysis oil gas and pyrolysis solids;

[0093] (b) Carry out the second gas-solid separation of pyrolysis oil and gas to obtain dedusted oil and gas and second solid particles, then contact the dedusted oil and gas with a catalyst for catalytic decarburization reaction to obtain coal tar; The particles are cooled to obtain semi-coke products;

[0094](c) Fractionating coal tar to obtain fuel oil and rich gas, compressing the rich gas to obtain compressed rich gas, exchanging heat between the compressed rich gas and high-tempe...

Embodiment 1

[0108] use as figure 1 The process flow shown to prepare fuel oil includes:

[0109] (a) 100g of Boertai raw coal with a particle size of 1mm in the raw material bin 1 is introduced into the drier 2, and is contacted with the medium and low temperature flue gas introduced into the drier 2 at the same time for drying to obtain the Boertai dry coal and dust-containing gas, The dust-laden gas is introduced into the first cyclone separator 3 for the first gas-solid separation to obtain waste gas and first solid particles. Introduce in the pyrolysis reactor 5 through pressurization buffer storehouse 4, contact with the hydrogen-containing gas (the content of hydrogen is 20 volume %) that introduces in the pyrolysis reactor 5 simultaneously, carry out pyrolysis reaction 400s under the temperature of 550 ℃, Obtain pyrolysis oil gas and pyrolysis solid;

[0110] (b) introducing the pyrolysis oil gas into the second cyclone separator 6 for the second gas-solid separation to obtain de...

Embodiment 2

[0114] use as figure 1 The process flow shown to prepare fuel oil includes:

[0115] (a) 100g of Boertai raw coal with a particle size of 1mm in the raw material bin 1 is introduced into the drier 2, and is contacted with the medium and low temperature flue gas introduced into the drier 2 at the same time for drying to obtain the Boertai dry coal and dust-containing gas, The dust-laden gas is introduced into the first cyclone separator 3 for the first gas-solid separation to obtain waste gas and first solid particles. Introduce in the pyrolysis reactor 5 through pressurization buffer storehouse 4, contact with the hydrogen-containing gas (the content of hydrogen is 25 volume %) that simultaneously introduces in the pyrolysis reactor 5, be to carry out pyrolysis reaction 300s under the temperature of 600 ℃, Obtain pyrolysis oil gas and pyrolysis solid;

[0116] (b) introducing the pyrolysis oil gas into the second cyclone separator 6 for the second gas-solid separation to obt...

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
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Bulk densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of coal pyrolysis, and discloses a method and a device for producing coal tar and a method and a device for producing fuel oil from coal, the method comprises the following steps: (1) drying raw material coal to obtain dried coal, and then contacting the dried coal with hydrogen-containing gas to carry out pyrolytic reaction to obtain pyrolytic oil gas; and (2) contacting the pyrolysis oil gas with a catalyst to carry out catalytic decarburization reaction to obtain coal tar. The gaseous pyrolysis oil gas generated by coal pyrolysis is directly fed into the fluidized decarburization unit to be in contact with the catalyst for catalytic decarburization reaction, so that direct coupling of coal pyrolysis and decarburization reaction is realized, the process flow can be simplified, and the energy consumption and the cost can be remarkably reduced; and moreover, the contents of heavy components, sulfur, nitrogen and other heteroatoms in the finally obtained oil product can be greatly reduced, the hydrogen-carbon ratio is high, and the quality of the oil product is obviously improved.

Description

technical field [0001] The invention relates to the technical field of coal pyrolysis, in particular to a method and device for producing coal tar, and a method and device for producing fuel oil from coal. Background technique [0002] my country is rich in coal resources, especially low-rank coals including lignite and sub-bituminous coal (long-flame coal, non-caking coal, weakly caking coal, etc.) have the characteristics of high volatile content and high reactivity. Using low-rank coal pyrolysis technology to obtain high-value-added oil and gas components and high-carbon semi-coke products in low-rank coal can maximize the use value and economic value of coal, and is one of the important ways to realize the clean utilization of coal. [0003] CN104250565A discloses a coal tar and residual oil hydrocracking-thermal cracking combined treatment method, the method comprises: firstly, after the coal tar is subjected to vacuum distillation, light coal tar and heavy coal tar are...

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): C10G1/00C10B53/04C10B57/10B01D45/12
CPCC10G1/00C10G1/002C10B53/04C10B57/10B01D45/12C10G2300/10
Inventor 高浩华杜万斗
Owner CHNA ENERGY INVESTMENT CORP LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com