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Pressure wave pulverizer for gasificatin applications

A pulverizer, pressure wave technology, applied in the direction of furnace, furnace type, hearth type furnace, etc., can solve the problems of pollutant discharge and low efficiency

Inactive Publication Date: 2012-07-11
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] While certain methods of drying solid feedstocks are known in the art, these methods may involve undesirable features such as inefficiency or emissions of pollutants

Method used

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  • Pressure wave pulverizer for gasificatin applications
  • Pressure wave pulverizer for gasificatin applications
  • Pressure wave pulverizer for gasificatin applications

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Embodiment Construction

[0060] Examples of embodiments incorporating one or more aspects of the invention are described and shown in the drawings. These illustrated examples are not intended to be limiting of the invention. For example, one or more aspects of the invention may be utilized in other embodiments and even other types of devices.

[0061] The present disclosure relates to gasification applications involving the conversion of carbonaceous materials, such as coal, petroleum, biofuels or biomass, to carbon monoxide and hydrogen by reacting raw materials with controlled amounts of oxygen and / or steam at high temperatures. The resulting gas mixture is a type of fuel known as synthesis gas or syngas, which can include varying amounts of carbon monoxide, methane and hydrogen. A carbonaceous substance refers to a substance consisting of, containing, or capable of producing carbon.

[0062] An exemplary integrated gasification combined cycle (IGCC) system may include a main air compressor, an ai...

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Abstract

The present invention relates to a pressure wave pulverizer for gasificatin applications. The gasification apparatus includes a pressure wave pulverizer and a gasifier. The pressure wave pulverizer includes a first gas flow generator and a passage with a pulverizer inlet, a pulverizer outlet, and a gas inlet. The pulverizer inlet is supplied with the solid feedstock. The passage includes a gas acceleration section. The gas flow generator is configured to draw high speed gas through the gas inlet so as to induce pressure waves in the gas acceleration section thereby drying the solid feedstock and disintegrating the solid feedstock into particles. The gasifier is in flow communication with the pulverizer outlet.

Description

technical field [0001] The present invention relates to apparatus and methods for drying solid feedstocks for gasification applications, and more particularly to the use of pressure wave pulverizers or a combination of pressure wave pulverizers and fluidized bed dryers to dry such solid feedstocks. material. Background technique [0002] In gas turbine engines, the gasification of solid feedstock and the subsequent combustion of hydrocarbon components from the feedstock is known. In the case of using coal as a feed, most gasification processes require relatively dry (low moisture content )coal. Since almost all commercially available coal contains some amount of water, there is a need to dry the coal in an efficient manner prior to gasification. [0003] While certain methods of drying solid feedstocks are known in the art, these methods may involve undesirable features such as inefficiency or emissions of pollutants. Therefore, there is a need for alternative means of d...

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Application Information

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IPC IPC(8): B02C19/06B02C23/02F26B3/08
CPCB02C19/18B02C23/10
Inventor S·C·拉塞尔A·阿瓦利亚诺
Owner GENERAL ELECTRIC CO
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