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Systems for preheating feedstock

A heating system and raw material technology, applied in the direction of heating to dry solid materials, heating devices, drying solid materials, etc., can solve problems such as blockage, difficult gasification, and reduced fluidity

Inactive Publication Date: 2014-02-12
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, low-quality coal and biofuels may have high moisture content and thus be difficult to gasify
In some instances, biofuels such as cornstalks and switchgrass can contain so much water that gasification of the fuel is extremely inefficient
Additionally, higher moisture in the fuel reduces fluidity and leads to frequent clogging during handling and shipping
Possible damage includes fouling dust collectors and bridging fuel nozzles
Unfortunately, moisture removal can be difficult and cost prohibitive

Method used

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  • Systems for preheating feedstock
  • Systems for preheating feedstock
  • Systems for preheating feedstock

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Embodiment Construction

[0013] One or more specific embodiments of the invention are described below. In an effort to briefly describe these embodiments, not all features of an actual implementation may be described in the specification. It should be understood that when developing any such actual implementation in any engineering or design project, a number of implementation-specific decisions should be made in order to achieve the developer's specific goals, such as whether to comply with system related and business-related limitations, which may vary from implementation to implementation. In addition, it should be understood that such developments might be complex and time consuming, yet would nevertheless have been conventionally designed, constructed and fabricated in any event to those of ordinary skill having the benefit of this disclosure.

[0014] When introducing elements of various embodiments of the invention, "a," "an," "the," and "said" are intended to mean that there are one or more o...

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Abstract

Systems for preheating feedstock are provided. The system includes at least one energy source disposed in a gasification plant and configured to provide an energy, and a feedstock supply configured to deliver a solid feedstock. The system further includes a feed bin disposed downstream of the feedstock supply, wherein the feed bin is configured to receive the solid feedstock and to provide a dry feedstock. The system additionally includes a gasifier disposed downstream from the feed bin, wherein the gasifier is configured to produce a syngas from the dry feedstock. The system further includes a heating system configured to use the energy to heat the solid feedstock directly, heat the solid feedstock indirectly, or a combination thereof, to remove moisture from the solid feedstock in the feed bin.

Description

technical field [0001] The invention disclosed in this specification relates to raw material processing. Specifically, the disclosed embodiments of the present invention relate to feedstock preheating. Background technique [0002] Fossil fuels such as coal or oil can be used to produce electricity, chemicals, synthetic fuels, or for a variety of other applications. In some applications, fossil fuels can be gasified. Gasification involves the incomplete combustion of carbonaceous fuels with limited oxygen at extremely high temperatures to produce synthesis gas (e.g., fuels containing carbon monoxide and hydrogen), which can result in higher efficiencies and lower emissions than fuels in their pristine state Things are cleaner. [0003] Different carbonaceous fuels can be successfully gasified to varying degrees. That is, lower moisture content values ​​generally indicate that the fuel can burn more easily and gasify more efficiently. The moisture content value of a mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/80
CPCC10J2300/169Y02E20/16F26B3/08Y02E20/18C10J3/30F26B2200/02C10J2300/0976F26B23/10C10J2300/0909C10K1/003C10J3/506F01K23/068C10J2300/1693C10J2300/1678C10J2300/1653C10J2300/0959Y02P20/129
Inventor S.R.米什拉A.马宗达
Owner GENERAL ELECTRIC CO