Method for enhancing novel wet purification effects of semi-water gas

Abstract

Disclosed is a method for enhancing novel wet purification effects of semi-water gas. The method includes that catalyst is enhanced through hydrogen peroxide in a purification absorption tower, capacity of a desulfuration solution that removes flowing sulfides such as inorganic sulfur dioxide, organic carbonyl sulfide and mercaptan in the semi-water gas can be improved, and product sulphur is recycled for acid manufacturing. Devices that are involved in the method mainly comprises a purification tower, a liquid separating device and a solid-liquid separating device, the liquid separating device is composed of a barren liquor pump, a liquid separator and a purification liquid storing tank, the solid-liquid separating device mainly comprises a liquid rich pump, an automatic pressure filter and a conveyor, the purification tower is provided with an air inlet and an air outlet, the purification tower mainly comprises an air distributor, a liquid distributor and a sprayer from bottom to top, hydrogen peroxide is communicated with a regeneration barren liquor tank through a metering pump, and the catalyst is added according to a proportion. By means of the method for enhancing novel wet purification effects of the semi-water gas, effects of removing inorganic sulfur and organic sulfur in the semi-water gas are good, the method is not affected by limit of sulfide content in the semi-water gas of an inlet, byproduct sulphur is recycled, secondary pollution is prevented, the process is simple, and operation is simple and easy.

Description

technical field [0001] The invention belongs to the technical field of coal chemical production, and relates to a method for enhancing the effect of a new type of wet purification of semi-water gas, in particular to a method for purifying semi-water gas with high concentration of hydrogen sulfide and organic sulfur. This patent also relates to a device for implementing the method. Background technique [0002] In the field of coal chemical production, especially coal-to-semi-water gas production of synthetic ammonia, methanol, natural gas and other enterprises, due to the different types of raw coal used, the raw gas will contain varying amounts of harmful sulfides. These sulfides are seriously harmful to production, and all kinds of catalysts used in downstream production must be removed first to ensure the stability of subsequent production. It is generally required to control the content of hydrogen sulfide in the purified semi-water gas to be below 0.07g / Nm3, and it is ...

AI Technical Summary

Problems solved by technology

The wet process mainly includes the ammonia method, the improved ADA method, the PDS method, and the 888 method. These purification methods have disadvantages such as high catalyst consumption, increased tower blockage resistance, and regular discharge of purified waste liquid. The control conditions are harsh, and the design temperature, pressure, etc. , Oxygen supplementation and other control issues

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