Chilling transformation and purification device for high-temperature gasification product and technological method adopting chilling transformation and purification device

Abstract

The invention discloses a chilling transformation and purification device for a high-temperature gasification product and a technological method adopting the chilling transformation and purification device. The chilling transformation and purification device comprises a chilling transformation chamber and a washing and deslagging chamber, wherein the chilling transformation chamber and the washing and deslagging chamber are coaxial, multiple types of chilling rings are arranged in the chilling transformation chamber in a layered manner, the washing and deslagging chamber is provided with a central descending pipe, an annular ascending channel, a bottom slag removing port and an upper synthesis gas outlet, and the chilling transformation and purification device is mainly used for cooling, transformation and purification treatment of the gasification product of an entrained flow bed. The chilling transformation and purification device for the high-temperature gasification product and the technological method have the characteristics of stable and reliable operation, easiness in large-scale enlargement, environment protection, energy conservation and the like.

Description

technical field [0001] The invention relates to a high-temperature gasification product chilling shift purification device and a process method thereof, and belongs to the technical field of energy clean utilization. Background technique [0002] Entrained bed gasification technology is the leading technology of modern coal chemical technology and one of the core technologies of integrated gasification combined cycle power generation (IGCC for short). It is mainly responsible for converting carbon-containing solid fuels such as coal into carbon monoxide and hydrogen. Syngas mission. The entrained bed gasification process is carried out under high temperature and high pressure conditions, and the gasification products are accompanied by a large amount of fly ash and slag in addition to carbon monoxide and hydrogen. Because most of the entrained bed gasification process adopts high-temperature liquid slag discharge, whether it is liquid feeding method or dry powder feeding me...

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Problems solved by technology

The above two physical process-based methods do not adjust the components in the synthesis gas, and the effective gas flow rate in the synthesis gas is basically unchanged. Therefore, a large and complex synthesis gas conversion system needs to be installed in the follow-up process to make the carbon monoxide flow according to the process requirements. Quantity reacts with water vapor to convert into hydrogen

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