Method for laboratory treatment of high-temperature h2s/co2 mixed tail gas

Abstract

The invention relates to a method for treating high-temperature mixed gas containing H2S / CO2 in laboratories. The method uses special equipment for treatment and comprises the following steps: reducing the pressure of test exhaust through a pressure-reducing valve, sending the gas into a condenser, and cooling; sending the cooled gas into a flow controller, regulating the flow of the gas, introducing the gas into a KMnO4 solution in a first tail gas absorption tank for hydrogen sulfide absorption treatment, at the same time starting ultrasonic action and reacting; then turning on a hydrogen sulfide detector and detecting; emitting the gas if the concentration of hydrogen sulfide reaches the standard; and if the concentration of hydrogen sulfide does not reach the standards, introducing the gas into a second tail gas absorption tank for treatment or introducing the gas into the first tail gas treatment tank for retreatment until the concentration of hydrogen sulfide reaches the standards, and emitting the gas. The concentration of hydrogen sulfide gas in the gas treated by the method is lower than the emission concentration prescribed in the national standard, the method high tail gas treatment efficiency, and the treated product has stable state; besides, the method has the advantages of safety and reliability.

Description

technical field [0001] The invention relates to a tail gas treatment device, in particular to a device for treating high-temperature H-containing gas in a laboratory. 2 S / CO 2 Method of mixing exhaust gas. Background technique [0002] Gas field is the abbreviation of natural gas field, which is an area rich in natural gas. Natural gas is flammable, explosive, and highly mobile. Therefore, natural gas development is the most risky link in the upstream business chain of the petroleum industry. Moreover, since highly toxic and highly corrosive hydrogen sulfide is rich in high-sulfur gas reservoirs, accompanied by a large amount of gas field water, corrosion problems are very prominent during the development process. Therefore, in order to analyze the corrosion characteristics of high-sulfur gas fields, the laboratory needs to conduct high-temperature and high-pressure H-containing 2 S / CO 2 The simulated corrosion test of the gas is used for the evaluation of material sele...

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Problems solved by technology

However, due to the H 2 S is a highly toxic gas, and the emission concentration stipulated by the national low-altitude emission standard is lower than 5ppm. Therefore, how to safely and efficiently process high-temperature and high-pressure H 2 S / CO 2 The hydrogen sulfide tail gas produced by the corrosion simulation test is a concern of the industry

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