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Coal reformer furnace gas purification system

A furnace gas purification and reformer technology, which is applied in the direction of combustible gas purification, combustible gas purification/transformation, gasification process, etc., and can solve the problem of not considering the risk of filter clogging

Active Publication Date: 2018-05-04
CHENGDU INTERMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese invention patent application document with the publication number CN103961954A discloses a filter element (filter element) regeneration method, which adopts the method of passing oxygen-poor gas into the high-temperature gas filter device to burn the combustible dust attached to the filter element to realize the regeneration of the filter element purpose, but this method only involves the regeneration of the filter element, and does not consider how to fundamentally reduce the risk of filter element clogging

Method used

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  • Coal reformer furnace gas purification system
  • Coal reformer furnace gas purification system
  • Coal reformer furnace gas purification system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Such as figure 1 As shown, the coal conversion furnace gas purification system includes a coal conversion furnace 100 and a high-temperature gas filter device 300 for filtering and purifying the furnace gas output from the outlet of the coal conversion furnace 100. In this system, the furnace gas of the coal conversion furnace 100 The part from the gas outlet to the high-temperature gas filter device 300 as a whole constitutes a downward trend in the temperature of the furnace gas from the output of the coal conversion furnace 100 to the filter element 310 of the high-temperature gas filter device 300 . Furnace gas heating and heat preservation flow path whose fluctuation range is kept within the range of no more than 80°C. Specifically, a pre-dust removal device 200 is provided between the coal conversion furnace 100 and the high-temperature gas filter device 300, the furnace gas outlet of the coal conversion furnace 100 communicates with the gas inlet to be de-dusted ...

Embodiment 2

[0072] Embodiment 2 adopts the same coal reformer furnace gas purification system and working method as Embodiment 1, but the difference lies in the temperature control of the furnace gas 700 output from the coal reformer 100 outlet to the high-temperature gas filter device 300 filtered gas outlet process superior. According to the test, the average furnace gas temperature at the inlet of the pre-dust removal device 200 is 512°C, the average temperature of the gas at the outlet of the pre-dust removal device 200 is 526°C, and the average furnace gas temperature at the inlet of the high-temperature gas filter device 300 is 512°C. The gas temperature is 528°C, and the average furnace gas temperature at the filtered gas outlet of the high-temperature gas filtering device 300 is 540°C, from the time when the furnace gas is generated by the coal conversion furnace 100 until the furnace gas is output from the filtered gas outlet of the high-temperature gas filtering device 300. The ...

Embodiment 3

[0074] Such as figure 2 As shown, a pre-dust removal device 200 is provided between the coal conversion furnace 100 and the high-temperature gas filter device 300, the furnace gas outlet of the coal conversion furnace 100 communicates with the gas inlet of the pre-dust removal device 200, and the dust-removed gas of the pre-dust removal device 200 The outlet communicates with the gas inlet to be filtered of the high-temperature gas filter device 300, and the coal conversion furnace 100 and the pre-dust removal device 200 and between the pre-dust removal device 200 and the high-temperature gas filter device 300 are respectively connected through relatively long pipelines. In this system, a furnace gas heating device 500 is provided at the front end of the high-temperature gas filtering device 300 to be filtered. The heated gas outlet of the device 500 is connected with the unfiltered gas inlet of the high temperature gas filtering device 300 . Wherein, the furnace gas heating...

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Abstract

The invention discloses a novel a furnace gas purifying system of a coal conversion furnace, aiming at carrying out gas-solid separation and purification on the furnace gas of the coal conversion furnace. The novel system comprises the coal conversion furnace and a high-temperature gas filter device, wherein the high-temperature gas filter device is used for filtering and purifying the furnace gas output from the outlet of the coal conversion furnace. A part of the novel system from the furnace gas outlet of the coal conversion furnace to the high-temperature gas filter device integrally forms a furnace gas heating heat-preserving flow path, and the furnace gas heating heat-preserving flow path can particularly keep the downward fluctuation amplitude of furnace gas temperature within a range less than or equal to 80 DEG C in the process starting from that the furnace gas is output from the outlet of the coal conversion furnace till the furnace gas passes through a filter element of the high-temperature gas filter device. The novel system disclosed by the invention can preferably prevent the adverse effects of the physical instability and chemical instability of the furnace gas of the coal conversion furnace on the purifying process of the furnace gas and especially on the high-temperature filtering purifying process of the furnace gas, thereby fundamentally prolonging the usage time of the filter element before the filter element is blocked.

Description

technical field [0001] The invention relates to a coal reformer gas purification technology, in particular to a coal reformer gas purification method and a coal reformer gas purification system. The so-called "coal reformer gas" especially includes coal gasification furnace gas and coal carbonization furnace gas. Background technique [0002] Restricted by the physical and chemical properties of the coal reformer gas itself, under the existing technical conditions, in order to achieve clean and efficient utilization of the gas products generated by coal conversion, the feasible method is to adopt high-temperature heating of the coal reformer gas. Purification technical route. At present, there are limited means to achieve high-temperature purification of gas, mainly including mechanical dust removal, electric dust removal and high-temperature gas filtration and dust removal. Mechanical dust removal methods (such as gravity dust collectors, cyclone dust collectors) have low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/84C10K1/02
CPCC10J3/84C10J2300/1603C10K1/024
Inventor 高麟汪涛樊彬
Owner CHENGDU INTERMENT TECH