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Technological process for IGCC gasifier chilling gas

A process flow and chilled gas technology, applied in gasification process, granular/powder fuel gasification, petroleum industry, etc., can solve the problem of weakening the cooling effect of chilled gas

Inactive Publication Date: 2021-06-15
HUANENG TIANJIN COAL GASIFICATION POWER CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Forced to increase the temperature of the compressor to cope with the impact of condensed water, which will weaken the cooling effect of the chilled air

Method used

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  • Technological process for IGCC gasifier chilling gas
  • Technological process for IGCC gasifier chilling gas

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0019] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] Please refer to Figure 1-2 , the embodiment of the present invention provides a kind of technological process of IGCC gasifier quenching gas, comprises the following steps; Wherein,

[0021] Step 1: leading the chilled air from the top of the scrubber to the inlet of the heat exchanger thr...

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Abstract

The invention discloses a technological process of IGCC gasifier chilling gas, and aims to solve the problem that the existing chilling gas is led out from the top of a washing tower and is naturally entrained with water. A liquid separation facility is included in synthesis gas pretreatment of a purification device, synthesis gas flows through a liquid separation tank after being cooled, entrained water vapor can be completely discharged, and then the synthesis gas flows to a hydrolyzer after heat exchange. The actual operation value of the outlet temperature of the synthesis gas side of the existing heat exchanger is about 105-110 DEG C, the requirement of a chilling gas compressor is completely met, the gas does not contain water vapor and cannot condense and separate water in a subsequent chilling gas pipeline, and the influence of condensed water on low-temperature sulfur corrosion of an impeller rotor and a volute of the compressor is eliminated.

Description

technical field [0001] The invention relates to the technical field of chilled gas flow, in particular to a process flow of chilled gas for an IGCC gasifier. Background technique [0002] The IGCC unit gasifier adopts the two-stage dry coal powder pressurized gasification technology with independent intellectual property rights of Huaneng Group, and uses the chemical reaction of the second-stage coal powder to chemically quench the high-temperature syngas in the first stage. Due to the lack of chemical quenching effect , it is necessary to introduce part of the physical cooling of chilled air. In the actual operation, it is found that the current chilled air compressor can just realize the high-load operation of the unit under the condition of full output, but the operation flexibility is poor, and the ability to deal with anti-interference is weak. Under the premise that the existing second-stage coal volume cannot continue to increase, it is necessary to consider improvin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/46C10J3/48C10J3/72
CPCC10J3/46C10J3/48C10J3/72C10J2300/093Y02E20/18
Inventor 吴平秦建明祁海鹏艾云涛王相平李志强付彬王超贾东升邢广华王瑞超
Owner HUANENG TIANJIN COAL GASIFICATION POWER CO LTD
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