Entrained bed gasifier with integrated medium temperature plasma

A plasma and entrained bed technology, applied in gasification process, combustible gas purification, gasification device electrodes, etc., can solve problems such as high processing cost, achieve the effect of low hydrogen content change, and reduce electric power consumption

Inactive Publication Date: 2015-09-09
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In particular the tars and oils contained therein have to be separated from the crude gas, which entails particularly high processing costs

Method used

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  • Entrained bed gasifier with integrated medium temperature plasma
  • Entrained bed gasifier with integrated medium temperature plasma
  • Entrained bed gasifier with integrated medium temperature plasma

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] Three possible methodological implementations of the invention are enumerated.

[0049] according to figure 1 Variant shown:

[0050] with the help of figure 1 The method configuration according to the invention is explained in principle.

[0051] The structure according to the invention has two main components:

[0052] - gasification reactor (1),

[0053] - Plasma generators (2).

[0054] The conversion of biomass is carried out in the gasification generator (1) by means of the plasma generator (2) and the return moist synthesis gas is fed at a temperature between 800°C and 1500°C below the ash melting temperature, The input of biomass (eg sawdust) with an average particle size of less than 2 mm is done there via a screw conveyor. High calorie syngas is formed due to the endothermic water vapor reaction of the fuel. The hot raw gas flows from the gasification reactor ( 1 ) into the quench chamber ( 3 ) and is cooled there to a temperature of approximately 110° ...

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Abstract

A process for gasifying solid or liquid gasification materials, in particular biomass, at pressures in the range from atmospheric pressure to 10 MPa and at gasification temperatures in the range from 800° C. to 1500° C. to form a highly calorific synthesis gas. An endothermic steam gasification process proceeds in a gasification space of an entrained flow gasifier, and a plasma of intermediate temperature (typically <3500° C., preferably <2000° C.) introduces heat of reaction into the gasification space in such a quantity that the gasification temperature is kept below the ash softening temperature of 1500° C. Endothermic reactions, in particular reactions having a high activation energy, proceed at high rates at far lower gas temperatures than in the case of a thermal process. The gasification process, which does not require an oxygen plant, gives a crude gas which is free of hydrocarbons.

Description

technical field [0001] The invention relates to a method and a device for gasifying solid or liquid gasification substances into synthesis gas at a pressure between standard pressure and 10 MPa and at a temperature between 800° C. and 1500° C. [0002] The present invention furthermore relates to a method of using water vapor as the oxidizing agent at a temperature between 800 ° C and 1500 ° C and at a pressure between ambient pressure and 10 MPa (100 bar) and using a plasma generator to convert liquid Processes and entrained bed gasifiers for the gasification of high-calorie syngas from or solid fuels, especially biomass. Background technique [0003] Due to the ever-increasing share of renewable energies with fluctuating characteristics, such as photovoltaics or wind energy, in the world, new demands are placed on national energy supply systems. Energy from these sustainable sources can only be efficiently stored when demand is low and can either be fed into the energy su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/46C10J3/48C10J3/84C01B3/32
CPCC10J3/18C10K1/00C10J2200/12C10J2300/1823C10J3/466C10J2300/123C10J3/485C10J2300/1238C01B3/342C01B2203/0216C01B2203/0255C01B2203/0415C01B2203/049C01B2203/061C01B2203/062C01B2203/066C01B2203/0861C01B2203/0894C01B2203/84C10J2300/0916C10J2300/0976C10J2300/1603C10J2300/165C10J2300/1687C10J2300/1853C10J2300/1869C10J2300/1884C10J2300/1892C10K1/026C10K1/101Y02P20/129Y02P20/145C01B3/32C01B2203/02C01B2203/042C01B2203/0877C10J3/80C10J3/86C10J2200/09C10J2300/0959
Inventor T.哈默F.汉内曼D.克洛斯特曼A.特雷梅尔
Owner SIEMENS AG
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