SU1255176A1 - Method of extracting components from gas mixture - Google Patents

Description

112551

This invention relates to methods for extracting components from a gas mixture and may find application in the chemical industry.

The purpose of the invention is to reduce energy consumption in the processes accompanying the release of heat.

Example 1. To a monohydrate tower of a 800 ton / day (42 t / h) sulfuric acid system, 136,000 gases containing 7.5% by volume of SO and having a temperature of 120 C are fed. Absorbent consisting of 3.4 is fed into the tower. t / h of water and 546 t / h of drying acid (93%) and paraffin in the amount of 690 t / h at 50 s. When used during the absorption of 14.5 million kcal / h of heat, a mixture of sulfuric acid (98%) and paraffin is obtained at the outlet of the tower at. After separation, the paraffin is mixed with water to cool it to 50 ° C, separate it from the water and return to the hydrophobic tower.

The paraffin cooling process is carried out in direct contact mixers without the use of deficient steels. Energy consumption for steam supply Compiler G. Vinokurova Editor S. Patrusheva Tehred L. Serdyukova Proofreader V. Butt ha

Order 4741/6 Circulation 663 Subscription VNIIPI USSR State Committee.

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

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finanza and drying acid are 215 kW and reduced by 2.5 times,

Example2. A mixture of 36 t / h of water and 690 t / h of paraffin at 50 ° C is fed to the monohydrate tower of a sulfuric acid system with a capacity of 1000 tons / day, working on sulfur. The amount of gas, its concentration and temperature correspond to example 1. The resulting acid (42 t / h) and paraffin at 80 ° C are separated, the paraffin is cooled upon direct contact with water and returned to the process head.

In conventional refrigerators, the water temperature does not exceed 40 ° C.

. EXAMPLE 3 To obtain ammonia water with a concentration of 10% by weight NHg, 5,000 gases containing 40% by volume NH and having a temperature of 40 ° C and a pressure of 3 kg / cm are supplied. With the necessary degree of absorption of 99.5%, absorption (packed-type absorber) simultaneously serves 17,910 m / h of water and 78,000 kg / h of light industrial oil. In the heat gap during the reaction, NHj and 1064000 kcal / h, the final temperature of the outgoing liquid mixture is 40 ° C.

Claims (1)

METHOD FOR REMOVING COMPONENTS FROM A GAS MIXTURE, comprising treating a gas mixture with a washing liquid, adding organic heat carrier inert to the gas mixture inert to the gas mixture, and separating the heat carrier from the washing liquid, characterized in that, in order to reduce energy consumption in the processes accompanied by heat, the addition of coolant is carried out before processing the gas mixture, and its separation immediately after processing. _s in ω