A method and special equipment for removing hydrogen sulfide by supergravity liquid phase redox

Abstract

The present invention disclosed a method of removing hydrogen sulfide and its dedicated equipment for the oxidation and restoration of hydraulic liquid -phase hydraulic fluid.The desulfurization agent is in contact with the surface of the rotor's silk mesh; the sulfur -containing desulfurization agent enters the surface of the wire filler of the air in the regenerative hyper -gravity reactor; the sulfur -containing desulfurization agent is pumped into the storage tank after the regeneration, and the settlement is settled.When the sulfur gross grinding at the bottom of the storage tank is pumped into the vacuum filter, the sulfur sulfur is formed, and the filter liquid pump back into the storage tank.The process response time is short, the process efficiency is high, and the hydrogen sulfide removal effect is good; the scope of application is wide, the selectivity is high, and the safety performance is high.The process cycle time and stable operation.

Description

Technical field: [0001] The invention relates to a method for removing hydrogen sulfide and its special equipment, in particular to a method for removing hydrogen sulfide by supergravity liquid phase redox and its special equipment. Background technique: [0002] At present, the methods for removing hydrogen sulfide mainly include dry method and wet method, and the Claus process is currently the most widely used dry method, which has the following disadvantages: , Claus process requires raw material H 2 The S content is at least 30%, and the H 2 When the S content is less than 30%, the work cannot be started, and the adaptability of raw materials is narrow; , Claus process can only deal with acid gas; 1. The Claus reaction is a high-temperature reaction, and the reaction conditions are harsh; , Claus hydrogen sulfide removal rate can only reach 96-97%, and there are still 3-4% sulfur in the form of SO 2 After adding the tail gas hydrotreating device, although the re...

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Problems solved by technology

[0002] At present, the methods for removing hydrogen sulfide mainly include dry method and wet method, and the Claus process is currently the most widely used dry method, which has the following disadvantages: , Claus process requires raw material H 2 The S content is at least 30%, and the H 2 When the S content is less than 30%, the work cannot be started, and the adaptability of raw materials is narrow; , Claus process can only deal with acid gas; 1. The Claus reaction is a high-temperature reaction, and the reaction conditions are harsh; , Claus hydrogen sulfide removal rate can only reach 96-97%, and there are still 3-4% sulfur in the form of SO 2 After adding the tail gas hydrotreating device, although the removal rate can reach 99.7%, it still cannot meet the requirements of the new national emission standards; , The liquid sulfur produced by the Claus process contains hydrogen sulfide, which is prone to hydrogen sulfide poisoning during transportation and loading, resulting in the death of operators

, The equipment used in the Claus process is prone to sulfur blockage, resulting in shutdown, and may cause accidents such as burnout of the combustion furnace, burnout of the chimney, and acid gas leakage; the most widely used method for removing hydrogen sulfide by wet method is traditional Complex iron desulfurization process has the following disadvantages: , The desulfurization agent is unstable, it is easy to decompose in the solution and form a precipitate, resulting in poor desulfurization effect; , The desulfurizer is more serious to the equipment corrosion; 、The traditional wet chelated iron desulfurization process is not suitable for the treatment of a large amount of gas

1. The traditional process mainly uses tower equipment as the process device. This reaction tower has disadvantages such as low mass transfer efficiency, slow gas-liquid reaction, large equipment size, high cost, large resistance, and small operating flexibility; 1. The regeneration equipment and sulfur treatment equipment of the traditional process are huge, the overall investment of the process is large, and the economy is low;

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