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High-temperature synthetic gas graded chilling device and method

A synthesis gas, high temperature technology, which is applied in the joint combustion mitigation, the manufacture of combustible gas, the petroleum industry, etc. Simple, efficient reduction, uniform flow field effect

Active Publication Date: 2013-05-22
SHANGHAI BOILER WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas quenching device of the Shell gasifier requires a large amount of quenching gas, and the power consumption of the syngas cycle compressor is large, so the chilling effect is not good

Method used

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  • High-temperature synthetic gas graded chilling device and method
  • High-temperature synthetic gas graded chilling device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]A dry powder gasifier with a daily processing capacity of 3,000 tons of coal has a gasification pressure of 4.0 MPa, the temperature at the inlet of the slagging chamber after gasification of the syngas is 1300°C, and the total gas flow out of the gasification chamber is 26,706 Nm3 / h. The total amount of chilled air is 31513Nm 3 / h, the chilling gas distribution ratio of the primary and secondary chilling chambers is 0.85:0.15, the primary chilling chamber is arranged with two layers of primary nozzles, each layer has 64 primary nozzles, and the axial and The included angle α=0° between the normal direction of the lower support plate, the included angle α=3° between the axial direction of the first-stage nozzle on the lower layer and the normal direction of the lower support plate, and a layer of second-stage nozzles arranged in the second-stage chilling chamber, and the second-stage The number of nozzles is 16, and the included angle between the axial direction of the s...

Embodiment 2

[0044] A dry powder gasifier with a daily processing capacity of 3,000 tons of coal, the gasification pressure is 4.0MPa, the inlet temperature of the slag collection chamber after gasification and synthesis gas is 1100°C, and the total amount of gasification synthesis gas is 27402Nm 3 / h. The total amount of chilled air is 28700Nm 3 / h, the distribution ratio of the primary and secondary cooling chambers is 0.8:0.2, the primary cooling chamber is arranged with two layers of primary nozzles, each layer has 48 primary nozzles, and the axial and lower support of the upper layer of primary nozzles The angle between the normal direction of the plate is α=0°, the angle between the axial direction of the first-stage nozzle on the lower layer and the normal direction of the lower support plate is α=3°, the second-stage quenching chamber is arranged with a layer of second-stage nozzles, and the number of second-stage nozzles is 16, and the included angle β between the axial direction...

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Abstract

The invention provides a high-temperature synthetic gas graded chilling device which comprises a shell, wherein the inner wall of the shell is provided with a primary chilling chamber formed by the shell, an upper support plate, the upper part of a lower support plate, and a partition plate; a secondary chilling chamber formed by the shell, the lower part of the lower support plate and the partition plate is arranged below the primary chilling chamber; the upper support plate is connected with a vaporizing chamber; and a high-temperature synthetic gas circulating channel is formed at the center in the shell. The invention also provides an application method of the high-temperature synthetic gas graded chilling device, which is implemented in a way that: part of chilling gas enters the primary chilling chamber through a primary chilling gas inlet, the rest of chilling gas enters the secondary chilling chamber through a secondary chilling gas inlet, and the two parts of chilling gas are respectively sprayed out by a primary sprayer and a secondary sprayer and mixed with high-temperature synthetic gas. The device provided by the invention can quickly, uniformly and efficiently lower the high-temperature synthetic gas to the temperature range required by the technique through graded chilling, has the characteristics of simple structure and low operating cost, and is convenient for maintenance.

Description

technical field [0001] The invention relates to a graded chilling device for cooling synthesis gas of a gasification furnace to a certain temperature range and a method for using the same, belonging to the technical field of industrial chilling devices. Background technique [0002] Integrated Coal Gasification Combined Cycle (hereinafter referred to as IGCC) is one of the cutting-edge technologies for global clean energy utilization. Compared with ordinary coal-fired power generation technology, its advantage is that it can use coal resources more efficiently and greatly Reduce emissions of combustion pollutants. The post-treatment of high-temperature flue gas can be divided into two processes: waste heat boiler and chilling. Depending on the follow-up process and products, different processing procedures are adopted. Among them, the chilling device used in the chilling process is the core equipment connected to the vaporization chamber. [0003] The chilling device curr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/82
CPCY02E20/18
Inventor 葛学利乌晓江张建文刘煜张艳伟
Owner SHANGHAI BOILER WORKS
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