Integration installation for producing synthesis gas from coal with high volatile constituent

Abstract

This invention discloses an integrated apparatus for producing synthesis gas from high-volatile coal. The apparatus is composed of an upper drying and retorting section, a middle conversion and gasification section, and a lower liquid slag discharge section. The upper drying and retorting unit comprises: a sealed coal container set at the top, a pyrolysis coal gas outlet at the upper part, and a synthesis gas outlet at the middle part. The conversion section has a pyrolysis coal gas inlet at the bottom, and is connected with the retorting section and the gasification unit at the top and bottom, respectively. The conversion and gasification section has refractory lining inner wall and water jacket outer wall, and the water jacket comprises: a cooling water inlet, a cooling water outlet, and a liquid / solid slag discharge structure. The slag discharge section comprises: an upper slag discharge port, a middle slag-quenching chamber and a lower sealed slag hopper. The apparatus integrates pyrolysis, gasification and pyrolysis coal gas conversion to produce synthesis gas, and has such advantages as high resource utility, little pollution, and high profit.

Description

technical field [0001] The invention relates to a device for producing synthetic gas with high volatile coal as raw material, in particular to a production synthesis that integrates pyrolysis gas production, gasification gas production and pyrolysis gas conversion gas production with high volatile coal as raw material. An integrated device for gas. Background technique [0002] The existing gasifier types at home and abroad are mainly divided into three categories: fixed bed gasifier, fluidized bed gasifier and entrained bed gasifier. Each of these three types of gasifiers has its advantages and disadvantages. [0003] Lurgi and two-stage furnaces use fixed-bed gasification technology. The two-stage furnace is a complete gasification device that uses lump coal as raw material and concentrates bituminous coal dry distillation and gasification in the same gasifier under normal pressure. It actually adds a dry distillation section on the top of the general water gas furnace ...

AI Technical Summary

Problems solved by technology

[0016] (2) The inherent complexity of pressurized gasification, frequent equipment maintenance

[0017] (3) Tar, oil, fatty acid, unsaturated hydrocarbon, phenol, ammonia, etc. produced in the coal gasification process complicate gas purification and wastewater treatment

CN2513997Y technology cannot recover valuable coal tar chemical products

The analysis shows that there is no low-investment technology suitable for high-volatility and weak-viscosity lump coal-to-synthesis gas (for the synthesis of alcohol ethers)

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