Unlock instant, AI-driven research and patent intelligence for your innovation.

Coal or biomass medium low temperature pyrolysis quality improving system and method for producing quality improved coal, high calorific value pyrolysis gas and tar or liquefied synthetic oil by utilizing same

A technology for low-temperature pyrolysis and upgrading of coal, which is used in the production of upgraded coal, pyrolysis gas with high calorific value and coal tar or liquefied synthetic oil, chemical circulation reaction system, and low-temperature pyrolysis and upgrading system for coal or biomass

Active Publication Date: 2013-06-19
CHNA ENERGY INVESTMENT CORP LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] So far, there is no chemical cycle reaction system for coal pyrolysis upgrading, in which moisture and volatiles in coal can be removed at medium or low temperature pyrolysis temperature, and the reaction system can The chemical cycle in the system to obtain upgraded coal, high calorific value synthesis gas, and coal tar or liquefied synthetic oil system

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
  • Coal or biomass medium low temperature pyrolysis quality improving system and method for producing quality improved coal, high calorific value pyrolysis gas and tar or liquefied synthetic oil by utilizing same
  • Coal or biomass medium low temperature pyrolysis quality improving system and method for producing quality improved coal, high calorific value pyrolysis gas and tar or liquefied synthetic oil by utilizing same
  • Coal or biomass medium low temperature pyrolysis quality improving system and method for producing quality improved coal, high calorific value pyrolysis gas and tar or liquefied synthetic oil by utilizing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] take as figure 1 The shown coal pyrolysis upgrading system implements the method for producing upgraded coal, high calorific value pyrolysis gas and coal tar or liquefied synthetic oil of the present invention

[0108] First, lignite of the following chemical composition was crushed into particles having the following particle size distribution using conventional crushing equipment.

[0109] 15 cm > 100 wt% bituminous coal particle size > 5 cm

[0110] Catalytic-heat carrier-oxygen transfer material is Fe 2 o 3 , which has the following particle size distribution:

[0111] 1 mm > 100% by weight catalytic-heat carrier-oxygen transfer material > 1 micron

[0112] 100 microns > 95% by weight catalytic-heat carrier-oxygen transfer material > 10 microns

[0113] The particle size of the above-mentioned particles is determined by a sieving method or a specific surface area method.

[0114] In weight %, the chemical composition of lignite is as follows (dry basis):

[0...

Embodiment 2

[0140] The lignite particle of crushing among the above-mentioned embodiment 1 is equal to or similar pyrrhotite (Fe (1-x) S) (wherein (1-x) is generally about 0.8) after mixing with a weight ratio of 99:1, the resulting mixture is injected into the medium and low temperature pyrolysis furnace (100) with the same method as in Example 1. Under the catalysis of pyrrhotite and FeS produced in the coal pyrolysis process, the coal or the tar produced by coal pyrolysis will be cracked and hydrogenated with the hydrogen in the pyrolysis gas to form low molecular weight liquefied synthetic oil.

[0141] Finally, in mol%, the chemical composition of coal pyrolysis gas is as follows:

[0142] Table 6

[0143] CO

[0144] The calorific value of the above-mentioned pyrolysis gas after dehydration is about 15900 kJ / m3, so it can be seen that it is still a gaseous fuel with a relatively high calorific value.

[0145] In weight %, the chemical composition of the synthetic oil is...

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
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
heating valueaaaaaaaaaa
Login to View More

Abstract

Disclosed are a medium to low temperature pyrolysis system for upgrading the quality of coal or biomass, and a method of producing upgraded coal, high calorific value pyrolysis gas and tar or liquefied synthetic oil by using the system. The system and method enable effective capture of carbon dioxide. The system includes a medium to low temperature pyrolysis oven which is preferably of a moving bed type, and at least a catalysis-heat carrier-oxygen transfer material regenerator in connection with the medium to low temperature pyrolysis oven, a solid-solid separator and a condenser. In the medium to low temperature pyrolysis oven, raw coal is subjected to medium to low temperature pyrolysis, and upgraded coal, high calorific value pyrolysis gas and gas of tar or liquefied synthetic oil are produced. The gas of tar or liquefied synthetic oil is condensed to become tar or liquefied synthetic oil. In the catalysis-heat carrier-oxygen transfer material regenerator, the saturated spent catalysis-heat carrier-oxygen transfer material is oxidized and regenerated, and is returned to the medium to low temperature pyrolysis oven, thus achieving the regeneration and recycling of the catalysis-heat carrier-oxygen transfer material.

Description

technical field [0001] The present invention relates to the comprehensive utilization and conversion of coal or biomass, in particular, to a chemical cycle reaction system for pyrolysis and upgrading of coal or biomass, and more specifically, to a medium-low temperature pyrolysis of coal or biomass An upgrading system and a method for producing upgraded coal, high calorific value pyrolysis gas and coal tar or liquefied synthetic oil by using the system. Background technique [0002] Among many traditional coal and biomass conversion technologies, such as coal combustion, coal gasification, coal pyrolysis and other technologies, coal pyrolysis upgrading technology has become a recent trend because it can simply convert coal into fuels and chemicals at low cost. It is a hotspot of coal utilization research in the world. Researchers at home and abroad have proposed different coal upgrading process routes by improving the process. Currently, several upgrading processes have re...

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 Patents(China)
IPC IPC(8): C10B57/14C10B57/00C10B53/04C10B49/16C10B49/00C10G1/00
CPCC10G1/02C10B49/18C10G2300/1011C10L9/08C10B49/16C10G2300/4043Y02E50/14C10B53/04C10B53/02Y02E50/10Y02P30/20Y02P30/40
Inventor 刘科崔哲
Owner CHNA ENERGY INVESTMENT CORP LTD