Moving desorptive equipment for activated coke

Abstract

A flowing desorptive equipment for regenerating the activated coke which has adsorbed SO2 is composed of inlet storage cabin, inlet valve, inlet transition cabin, heating cabin with heating heat exchanger, reaction cabin, cooling cabin with cooling heat exchanger, outlet transition cabin and outlet valve in sequence. There is an insulating layer between the units above the outlet transition cabin. A heater is between the said two heat exchangers. Its advantages are simple structure, uniform reaction without dead corner, low flowing resistance, and low cost.

Description

1. Technical field: [0001] The invention relates to a device for regenerating and restoring active coke that has absorbed sulfur dioxide, and belongs to the technical field of manufacturing chemical equipment and air purification and environmental protection equipment. 2. Background technology: [0002] In the dry desulfurization and denitrification purification device using activated coke as a desulfurization agent and denitrification catalyst, the activated coke absorbs sulfur dioxide in the flue gas and stores it in the micropores of the activated coke in the form of sulfuric acid, and the activated coke gradually loses the sulfur dioxide. Therefore, it must be regenerated and restored before being put into use. [0003] The regeneration conditions and regeneration requirements of activated coke are: react for a certain period of time under the condition of a temperature of about 400 °C and an oxygen-free seal. As an industrial equipment, its process must be a continuous...

AI Technical Summary

Problems solved by technology

This kind of device is not only complicated in structure, but also extremely inconvenient for maintenance; moreover, the active coke is heated unevenly in the pipeline, the movement resistance is large, there is a moving dead angle, and the sealing of the axial material valve is not good

Activated coke begins to desorb at 150°C and above. In the heating section and cooling section, there is a desorption process of sulfur dioxide. Under this structure, the resistance of the desorbed gas to the reaction chamber is relatively large, and part of the sulfur dioxide gas will pass through. The inlet and outlet axial material valves discharge outwards, polluting the working environment

In addition, most of the current heating sources for activated coke desorption devices use natural gas combustion, coal gas combustion, electric heating, etc., and the energy released by cooling the activated coke is not recycled, resulting in high energy consumption and high operating costs

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