Entrained flow bed gasifier

A gasification device and entrained bed technology, applied in the field of coal gasification, can solve the problems of large entrainment of semi-coke, excessive entrainment of semi-coke, and difficulty in dust removal, so as to prolong reaction time, increase particle residence time, and reduce solids The effect of particle entrainment

Active Publication Date: 2015-03-04
ENN SCI & TECH DEV
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Problems solved by technology

[0003] At present, the gasifier used in coal hydrogasification technology generally has the technical problem of excessive semi-coke entrainment in the product gas
This is because after coal powder and hydrogen undergo hydrogenation gasification reaction in the gasifier to generate gas, the generated gas has upward power during the upward process and the gas volume is relatively large, resulting in semi-coke with low density, etc. Solid particles are entrapped in the gas and rise together with the gas, so that the entrainment of semi-coke in the product gas at the outlet of the gasifier is relatively large, and it also causes great difficulties in the dust removal treatment of the subsequent system

Method used

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] like Figure 1-3 As shown, the embodiment of the present invention provides an entrained-bed gasification device, including a furnace body 5, on which a hydrogen nozzle 2 is obliquely arranged, and the vertical axis of the hydrogen gas nozzle 2 and the furnace body 5 has a first angle α, and The horizontal central axis has a second included angle β; the lower part of the furnace body 5 is provided with a conical solid collection pool 6 .

[0023] In the entrained-bed gasification device provided ...

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Abstract

The embodiment of the invention provides an entrained flow bed gasifier, belonging to the technical field of coal gasification. The entrained flow bed gasifier can effectively separate the solid particles from the generated gas phase in the gasification furnace and greatly lower the semicoke entrainment quantity of the product gas. The entrained flow bed gasifier comprises a furnace body, wherein the furnace body is obliquely provided with a hydrogen gas nozzle; the hydrogen gas nozzle and the vertical axis of the furnace body form a first included angle alpha; and the hydrogen gas nozzle and the horizontal central axis form a second included angle beta. The lower part of the furnace body is provided with a conical solid collecting tank. The entrained flow bed gasifier can be used for coal hydrogenation gasification reaction.

Description

technical field [0001] The invention relates to the technical field of coal gasification, in particular to an entrained bed gasification device. Background technique [0002] The one-step natural gas preparation technology was developed in the 1980s to prepare natural gas, which mainly includes coal catalytic gasification and hydrogenation gasification, that is, coal hydrogenation gasification technology. This technology refers to the reaction of coal and hydrogen at high temperature (800-1000°C) and high pressure (3-7MPa) to generate methane-rich gas and light tar. It has the characteristics of simple process, high thermal efficiency, and low pollution, so it has become a common technology for preparing natural gas in the prior art. [0003] At present, the gasifier used in coal hydrogasification technology generally has the technical problem of excessive semi-coke entrainment in the product gas. This is because after coal powder and hydrogen undergo hydrogenation gasific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/84
CPCC10L3/08C10L2290/04
Inventor 汪国庆聂永广马志超周三方科学刘明马丽荣
Owner ENN SCI & TECH DEV
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