High-temperature crude synthesis gas chilling device

A crude synthesis gas and chilling technology, which is applied in the manufacture of combustible gas, climate sustainability, petroleum industry, etc., can solve the problems of high power consumption of synthesis gas cycle compression, poor chilling effect, and large chilled gas volume, etc. To achieve the effect of shortened residence time, simple structure and high chilling efficiency

Active Publication Date: 2011-08-03
WISON ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant proposed a synthesis gas preparation and heat recovery method in the patent CN200710175473.5. In the method, the high-temperature synthesis gas and the slag droplets carried by it need to be quenched to the temperature range required by the process. The applicant In patents CN200910047706, CN201020567950, CN201020607955, and CN201020607531, a new coal gasification equipment is proposed, which is used to realize coal-to-synthesis gas, partial quenching of syngas and first-stage heat recovery in the method described in patent CN200710175473.5 Steps, in the aforementioned five patents, it is necessary to chill the high-temperature crude syng

Method used

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  • High-temperature crude synthesis gas chilling device
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  • High-temperature crude synthesis gas chilling device

Examples

Experimental program
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Example Embodiment

[0025] Example 1

[0026] Such as figure 1 As shown, a chiller 1 for high-temperature crude syngas includes a gas flow channel 2 of the chiller 1 and an atomizing nozzle 3 installed on the side wall of the gas flow channel 2. The gas flow channel 2 is used to connect to a gasification furnace The reaction chamber 4 and the cooling chamber 5 provide a mixing space for the chilling medium and the high-temperature crude synthesis gas; the atomizing nozzle 3 can be a single-channel pressure nozzle 9 or a dual-channel gas-liquid two-phase nozzle 10, single-channel pressure type The structure of nozzle 9 or dual-channel gas-liquid two-phase nozzle 10 is as follows: image 3 , Figure 4 As shown, the single-channel pressure nozzle 9 used in this embodiment is evenly distributed on the side wall of the gas flow channel 2. The gas flow channel 2 can be a water-cooled wall 6 or a refractory and wear-resistant lining 7 or both Combination form, the shape is cylindrical or conical or a combi...

Example Embodiment

[0027] Example 2

[0028] The atomization nozzle 3 in Example 1 adopts a dual-channel gas-liquid two-phase nozzle 10, the chilled water inlet manifold 8 adds a gas-phase channel, the gas-phase channel takes compressed synthesis gas, and the central flow path of the gas-liquid two-phase nozzle 10 takes compressed synthesis gas. The annulus is chilled water. The chilled water is sheared and broken by a high-speed airflow, and sprayed into the gas flow channel 2 through atomization. The rest of the structure is the same as the first embodiment.

Example Embodiment

[0029] Example 3

[0030] A high-temperature crude synthesis gas quenching device, the quenching device is provided with a gas flow channel, an atomizing nozzle installed on the side wall of the gas flow channel, and the gas flow channel is used to connect the reaction chamber and the cooling chamber of the gasification furnace and provide stimulation The mixing space of cold medium and high-temperature crude synthesis gas. The atomizing nozzle is a dual-channel gas-liquid two-phase nozzle. One channel is a liquid-phase channel and the other channel is a gas-phase channel. The liquid phase is water, and the gas phase can be water vapor, Syngas or inert gas. The atomizing nozzles are evenly distributed on the side wall of the gas flow channel, and are used to evenly spray the quenching medium into the high-temperature crude synthesis gas to quench the high-temperature crude synthesis gas to a specific temperature range. The gas flow channel is composed of water-cooled walls and re...

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Abstract

The invention relates to a high-temperature crude synthesis gas chilling device, which comprises a gas flow channel of a chiller and an atomizing nozzle arranged on the side wall of the gas flow channel, wherein the gas flow channel is connected with a reaction chamber and a cooling chamber of a gasification furnace and provides a mixing space for a chilling medium and high-temperature crude synthesis gas; the atomizing nozzle is a single-flow-channel pressure nozzle or a double-flow-channel gas-liquid two-phase nozzle, and is partitioned into 1-20 layers; each layer is uniformly distributed on the circumference and is used for uniformly spraying the chilling medium into the high-temperature crude synthesis gas and chilling the synthesis gas to be in a specific temperature range; the gas flow channel is a water cooled-wall or a fire-resistant and wear-resistant liner or the combination of the water-cooled wall and the fire-resistant and wear-resistant liner; and the gas flow channel has a cylindrical structure or a conical structure or the combination of the cylindrical structure and the conical structure. The chilling device has the advantages of high chilling efficiency, large gas-liquid contact area, high chilling rate, small dosage of the chilling medium, mature manufacturing technology, high reliability and capability of reducing the consumption and the discharge of cleaning black water, and relates to an environmentally-friendly and-energy saving technology.

Description

technical field [0001] The invention relates to a quenching device, in particular to a high-temperature crude synthesis gas quenching device for quenching high-temperature crude synthesis gas and molten slag at the outlet of a reaction chamber of a gasifier to a specific temperature range. Background technique [0002] The coal gasification reaction of the entrained bed gasifier is usually carried out at a high temperature of 1200-1700 ° C. The high-temperature crude synthesis gas generated by the reaction needs to be cooled to a specific temperature before it can enter the subsequent equipment for dust removal, heat recovery, washing and other production operations. Different types of gasifiers have different cooling methods for high-temperature crude syngas according to process requirements, and the cooling equipment varies widely. A typical GE coal-water slurry gasifier uses a quenching ring and a water bath to excite high-temperature crude syngas. The Shell pulverized co...

Claims

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Application Information

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IPC IPC(8): C10J3/84
CPCY02P20/10
Inventor ZHAO BINGGUOLI BAOYOUZOU YONGSHENGFANG BANGYU
Owner WISON ENG
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