Coal hydrogenation gasification system and method
A coal hydrogenation gasification and hydrogen technology, which is applied in the gasification process, granular/powdered fuel gasification, petroleum industry, etc., can solve the complex hydrogenation gasification process, affect the gasification efficiency, and the poor mixing effect of coal powder and hydrogen And other issues
Active Publication Date: 2021-07-06
ENN SCI & TECH DEV
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[0004] However, because the metal coil is limited by the high temperature, the hydrogen cannot reach the reaction temperature through indirect heat exchange. Therefore, in the prior art, after using the hydrogen heating furnace to indirectly heat the hydrogen, the hydrogen needs to be heated twice through other devices, resulting in The entire hydrogasification process is complicated; at the same time, in the existing gasifier, the mixing effect of pulverized coal and hydrogen is poor, which affects the gasification efficiency
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[0035] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.
[0036] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.
[0037] Coal hydrogasification is a process in which pulverized coal reacts with high-temperature and high-pressure hydrogen to undergo hydrocracking and hydrogasification to generate crude gas rich in methane, and to produce light coal tar and semi-coke. When coal hydrogasification is carried ou...
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The present disclosure relates to a coal hydrogenation gasification system and method. The coal hydrogenation gasification system includes a hydrogen combustion furnace and a nozzle structure; Preset temperature; the nozzle structure includes a hydrogen gas distribution chamber and at least one pulverized coal pipeline, the hydrogen gas distribution chamber communicates with the hydrogen combustion furnace, and at least two hydrogen jet ports are opened on the wall of the hydrogen gas distribution chamber, and the hydrogen gas jet ports are used for gasification The furnace is injected with hydrogen heated to a preset temperature; the pulverized coal pipeline is installed in the hydrogen distribution cavity, and is not connected with the hydrogen distribution cavity. The coal inlet of the pulverized coal pipeline extends to the outside of the hydrogen distribution cavity, and the pulverized coal pipeline The coal outlet of the gasification furnace is connected with the inner cavity of the gasifier, and is used to inject coal powder into the gasifier. The hydrogen jet port is inclined towards the axis of the coal outlet, so that the hydrogen can be directly heated to the reaction temperature, and the Mixing effect of pulverized coal and hydrogen.
Description
technical field [0001] The present disclosure relates to the technical field of coal hydrogenation gasification, in particular to a coal hydrogenation gasification system and method. Background technique [0002] Coal hydrogasification is a process in which pulverized coal reacts with high-temperature and high-pressure hydrogen to undergo hydrocracking and hydrogasification to generate crude gas rich in methane, and to produce light coal tar and semi-coke. [0003] When coal hydrogasification is carried out, the hydrogen needs to be heated first, and the hydrogen is heated to the reaction temperature, and then the hydrogen reacts with the coal powder. The existing technology mainly heats the hydrogen indirectly through the hydrogen heating furnace. The hydrogen heating furnace heats the hydrogen through the heat exchange of the metal coil. heating. [0004] However, because the metal coil is limited by the high temperature, the hydrogen cannot reach the reaction temperatur...
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IPC IPC(8): C10J3/48
CPCC10J3/48C10J2300/0966C10J2300/1606
Inventor 刘明汪国庆周三马志超方科学
Owner ENN SCI & TECH DEV