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System for the conversion of coal to a gas of specified composition

A specific, gaseous technology for converting coal into a gas with a specific composition, which can solve problems affecting the efficiency of engine operation

Inactive Publication Date: 2008-10-01
PLASCOENERGY IP HLDG SL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition to affecting engine operating efficiency, deviations in gas characteristics can even have a negative impact on engine operation

Method used

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  • System for the conversion of coal to a gas of specified composition
  • System for the conversion of coal to a gas of specified composition
  • System for the conversion of coal to a gas of specified composition

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Effect test

Embodiment

[0298] [275] Generally, the system of the present invention is used by transferring coal together with heat from a source such as a plasma heat source 15, heated air, or any other heat source that may be suitable, into the gasification reaction vessel 14, where the raw material is Apply sufficient heating to cause the gasification reaction to occur.

[0299] [276] The heating of coal results in the removal of any residual moisture and evaporation of any volatile components, thus providing a partially oxidized char product. Further heating of the partially oxidized carbon product allows the carbon to be completely converted into its gaseous component, leaving the cinder by-product, which can then be further heated and converted into slag.

[0300] [277] Additional oxygen can be injected into the gasification reaction vessel to start or accelerate the exothermic reaction that produces carbon monoxide, carbon dioxide, and carbon particles. The exothermic reaction, together with the h...

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Abstract

The present invention provides a coal gasification system with an integrated control subsystem. The system generally comprises, in various combinations, a gasification reactor vessel (or converter) having one or more processing zones and one or more plasma heat sources, a solid residue handling subsystem, a gas quality conditioning subsystem, as well as an integrated control subsystem for managing the overall energetics of the conversion of coal to energy and maintaining all aspects of the gasification processes at an optimal set point The gasification system may also optionally comprise a heat recovery subsystem and / or a product gas regulating subsystem.

Description

Invention field [0001] [01] The present invention relates to the gasification of coal, and in particular to a method and device for converting coal into a gas with a specific composition. Background of the invention [0002] [02] Different grades of coal can be used as the main raw material for gasification. This includes low-grade, high-sulfur coal, which is not suitable for use in coal-fired generators because it produces emissions with high sulfur content. The waste coal particles and pulverized coal remaining after coal mining, storage, and washing are also useful for gasification. Coal can usually be gasified with oxygen and steam to produce so-called "synthetic gas" containing carbon monoxide, hydrogen, carbon dioxide, gaseous sulfides and particles. The gasification step is usually carried out at a temperature ranging from about 650°C to 1200°C, at or atmospheric pressure, or more usually at a high pressure from about 20 to about 100 atmospheres. [0003] [03] There are se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/18C10J3/16C10J3/08C10J3/28C10J3/86
CPCC10J2300/1671C10J2300/165C10J2300/1621C10J3/005C10J2300/1659C10J3/723C10J3/18C10J2300/0959C10J3/463C10J2300/093C10J2300/1238C10J2300/1869F23G2204/201C10J2300/06C10J2300/1646C10J3/16C10J2300/1693C10J2300/1675C10J2300/1884C10J3/721Y02E20/18C10J2300/1618C10J2300/0973C10J2300/1687C10K1/004C10K1/024C10K1/122C10K1/143C10K1/32Y02E20/16Y02P20/129C10J3/08C10J3/28
Inventor 安德里亚·茨安格瑞斯肯尼思·C.·坎贝尔D.·迈克尔·菲斯比克·里
Owner PLASCOENERGY IP HLDG SL
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