Impact flow washing device for purifying raw gas and purifying process

A washing device and crude gas technology, which is applied in combustible gas purification, combustible gas purification/transformation, gas dust removal, etc., can solve the problem of large space occupied by crude gas purification devices and processes, excessive ash content in chilled water, and low dust removal efficiency and other problems to achieve the effect of ensuring long-term stable operation, improving dust removal efficiency, and reducing dust accumulation

Active Publication Date: 2015-12-23
东方电气洁能科技成都有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a novel impinging flow washing device and purification process for crude gas purification to solve the technical proble

Method used

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  • Impact flow washing device for purifying raw gas and purifying process
  • Impact flow washing device for purifying raw gas and purifying process
  • Impact flow washing device for purifying raw gas and purifying process

Examples

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Embodiment Construction

[0036] Such as figure 1 As shown, an impinging stream scrubbing device for purification of crude gas includes an impinging stream scrubbing tower and a reduced-diameter accelerating tube 2 introduced into the tower from the lower side wall of the scrubbing tower shell 1. The upper side is provided with an impingement tower 8, a purification structure, a process condensate distributor 7 and a multilayer plate demister 6, and the side wall of the washing tower shell 1 is provided with a black water outlet N7 and an impinging tower black from bottom to top. Water outlet N5, chilled water outlet N4, washing water outlet N6, crude gas inlet N9, scrubber make-up water inlet N3, process condensate inlet N2 and purified synthesis gas outlet N1; the reduced diameter acceleration tube 2 penetrates into the scrubber through the crude gas inlet N9 In the tower shell 1, the installation position of the reduced-diameter acceleration tube 2 is higher than the chilled water outlet N4, the washi...

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Abstract

The invention discloses an impact flow washing device for purifying raw gas and a purifying process. An impact flow washing tower of the device is internally and sequentially provided with a gas-liquid impact tower, a tower plate, a process condensate water sprayer and a composite board demister from bottom to top. The process includes the steps of equally dividing raw gas containing ash and vapor into two streams, spraying a mixture of washing water and raw gas into a reducing acceleration pipe, forming coaxial impact in the impact tower through atomizing nozzles, conducting primary purification in the impact tower to remove most of ash in the raw gas, and making raw gas directly enter a washing tower after raw gas gets out of the impact tower to be secondarily purified. The impact flow dust removal technology and the washing tower are organically combined, and the dust removal efficiency is effectively improved while washing water consumption is lowered; the impact tower is placed in the washing tower, and the occupied space of the technological process is reduced; dark water in the impact tower and dark water in the washing tower are independent of each other, chilling water and washing water are cleaner, and therefore it is ensured that a gas gasifying system more efficiently and stably runs.

Description

technical field [0001] The invention relates to an impingement flow washing device and a purification process for purifying crude gas, and is especially suitable for washing and dust removal of crude gas in coal gasification process. Background technique [0002] Coal gasification technology uses coal or coal char as raw material, uses oxygen (air, oxygen-enriched or pure oxygen), water vapor or hydrogen as gasification agent, and converts the combustible part of coal or coal char through chemical reaction under high temperature conditions. The process of conversion to gaseous fuel. At present, the modern coal chemical industry with coal gasification technology as the "leader" is in a stage of vigorous development. [0003] After the crude gas produced by coal gasification, there are usually two processes of waste boiler process and chilling process to purify the crude gas. The crude gas in the waste boiler process first recovers heat through the waste heat boiler, then re...

Claims

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Application Information

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IPC IPC(8): C10K1/10C10K1/02C10K1/04C10J3/84B01D45/08C02F1/00
Inventor 徐莹璐王晓亮吴家桦赵庆陈慧杨纯
Owner 东方电气洁能科技成都有限公司
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