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A high-yield oil slag gasifier and coal gasification method

A slag gasification, high-yield technology, applied in gasification process, petroleum industry, manufacture of combustible gas, etc., can solve problems such as low oil production rate, achieve high-efficiency utilization, improve the effect of quality separation and comprehensive utilization

Active Publication Date: 2022-04-12
SHANGHAI ZEMAG MINDAC MACHINERY EQUIP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] In order to solve the problem that the entrained bed slag gasification technology and some other coal gasification technologies have no liquid by-products and the oil production rate of the fixed bed Lurgi furnace gasification and slag gasification technology is low, the present invention provides a new high-yield oil slag gasifier, and a high oil yield coal gasification method for greater oil yield

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  • A high-yield oil slag gasifier and coal gasification method
  • A high-yield oil slag gasifier and coal gasification method
  • A high-yield oil slag gasifier and coal gasification method

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Embodiment 1

[0029] refer to figure 1 , The present invention provides a high-yield slag gasifier, which includes a furnace body 1, a slag pool 3 at the bottom of the furnace body, and the furnace body includes a combustion zone, a gasification zone and a carbonization zone from bottom to top.

[0030] The distance from the slag pool of the furnace body to the crude gas outlet at the top is 14 meters, and the height-to-diameter ratio of the furnace body is 2.0.

[0031] The inventors have found that the smaller the coal particle size, the more uniform it is, for this reason, all the tar and volatile matter in the coal are more likely to be separated out. Under the premise of satisfying the gasification performance of the gasifier, the smaller and more uniform the particle size of the incoming coal, the better, which can increase the yield of liquid by-products of the coal type. In this embodiment, coal with a particle size of 6-50 mm is used.

[0032] Coal enters the furnace body 1 from ...

Embodiment 2

[0039] The distance from the slag pool of the furnace body to the crude gas outlet at the top is 16 meters, and the height-to-diameter ratio of the furnace body is 2.3. Compared with the existing Lurgi furnace or slag gasifier, and Example 1, the feed coal and gas residence time and the contact time of the present invention are longer, and the coal gas fully heats the coal particles and drives out the light oil contained therein. Components, including coal tar and volatiles. Reduce the content of coal tar and volatile matter entrained by coal particles after dry distillation, increase the output of crude gas and the content of tar in it, thereby increasing the output of liquid by-products. At the same time, the temperature of the discharged gas is still kept within a reasonable range, so as to avoid the ability of the crude gas to entrain liquid by-products to be too low due to the low temperature.

[0040] The bottom combustion zone temperature is 2000°C. All the others ref...

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Abstract

In order to solve the problem that the entrained bed gasification technology and some other coal gasification technologies have no liquid by-products and the oil production rate of the fixed bed Lurgi furnace gasification and slag gasification technology is low, the present invention provides a high oil yield slag gas Coal is fed into the slag gasifier from the top of the slag gasifier, and burnt at the bottom of the slag gasifier to form slag and crude gas; separate tar and oil components, and phenolic components. The invention improves the quality-based comprehensive utilization of coal, fully utilizes the gas-solid countercurrent flow principle of fixed-bed coal gasification, firstly pyrolyzes and dry-distills the coal upper layer coal, extracts light and volatile components in coal, and obtains coal tar, coal gas and coke , and then gasify the coke slag to produce coal gas, so in the same equipment, the oil and light components in coal of different chemical processes can be efficiently utilized, such as tar, oil, phenol, ammonia, naphtha, etc. can be obtained A variety of high value-added by-products.

Description

technical field [0001] The invention relates to a coal gasification furnace, in particular to a slag gasification furnace with high oil yield and a coal gasification method with high oil yield. Background technique [0002] In addition to being used for power generation and cooling, coal is also a major chemical raw material. China is short of petroleum and relatively rich in coal resources. Among the total reserves in the census, there is a huge amount of coal reserves that can be used for oil refining. If the oil from coal is extracted, Not only can artificial petroleum be obtained, but also high value-added industrial raw materials and high-quality fuels can be obtained. However, at present, very little coal is actually used for oil refining. [0003] In order to further improve the utilization efficiency of coal and the energy utilization efficiency of coal, reduce the consumption of water resources in the process of coal utilization, and reduce environmental pollution, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/60C10J3/20C10J3/72
CPCC10J3/20C10J3/60C10J3/721C10J2300/093
Inventor 傅敏燕丁烙勇
Owner SHANGHAI ZEMAG MINDAC MACHINERY EQUIP
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