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Method and device for preventing coarse coal-gas from fluctuating in fixed bed type reactor

A reactor, fixed bed technology, applied in the field of gasification of heterogeneous raw material mixtures, can solve problems such as adverse effects on quality and complexity

Inactive Publication Date: 2005-07-20
SUSTEC SCHWARZE PUMPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is technically very complex, with adverse effects on quality due to the formation of gasification and pyrolysis gases at different places and times and only in subsequent plants is the homogenization of the raw gases possible

Method used

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  • Method and device for preventing coarse coal-gas from fluctuating in fixed bed type reactor

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Embodiment Construction

[0019] The present invention will be described in more detail by means of an embodiment in conjunction with FIG. 1 .

[0020] A guide plate 2 is provided above the discharge device in the pressure vessel 1, and its central opening is smaller than the diameter of the fixed disc 4 and the rotatable star discharge device 3 above it, and the blade design of the star discharge device In this way, the blades exert a radial force on the solid raw material when the star wheel is running, so that the raw material is forced into the cavity 7 . The stationary disk 4 and the walls of the cavity are forced to cool. The input of solid raw material 5 and blowing gas 6 is carried out at the top of the pressure vessel with a discharge device. The inner structure is designed in such a way that a forced flow of gas into the cavity is ensured through the outlet slot.

[0021] A solid raw material distributor is fixed on the top of the reactor. Diameters and angles are determined according to e...

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Abstract

Process for preventing crude gas fluctuations in fixed bed reactors comprises charging the reactor from a supply container placed under a reactor pressure with a charge consisting of solid carbon-containing waste materials mixed with carbon-containing fuels. The charge is guided on a discharge unit to form a natural material closure. The discharge is cooled and operated discontinuously or continuously operated. - An INDEPENDENT CLAIM is also included for a device for carrying out the process. Preferred Features: During operation of the discharge unit, the inhomogeneous solid mixture is removed through a gap of corresponding size between the inner wall of the supply container and cooled discharge unit.

Description

technical field [0001] The present invention relates to the gasification of a heterogeneous feedstock mixture comprising carbonaceous solid waste and carbonaceous solid fuel in a fixed bed reactor. The solid bed gasifier is intermittently loaded with the gasification feedstock. The gasification takes place as an autothermer process at a pressure of more than 20 bar. Background technique [0002] During operation in this mode of operation, pressure, flow and mass fluctuations occur in the continuously extracted raw gas. Raw gas fluctuations are influenced here, inter alia, by the critical process temperature, the process pressure, the chemical composition and particle size of the raw materials used, the heating rate as well as the flow through the lock and the frequency of the lock opening. In addition to physical processes, fluctuations are also caused by process-dependent raw gas compositions formed at different times, water vapor, pyrolysis gases, dry distillation gases ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10JC10J3/02C10J3/20C10J3/16C10J3/22C10J3/28C10J3/30C10J3/78
CPCC10J3/78Y02E20/18C10J2200/15C10J3/30
Inventor 赖因霍尔德·格伦瓦尔德赖因哈德·斯科多安德烈亚斯·约赫曼
Owner SUSTEC SCHWARZE PUMPE
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