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Double column distillation in air separation

Double column distillation in air separation
The operation is the same as the non-conventional external compression process and is relatively simple. The nitrogen compressor has an inlet pressure of 5kPa and the outlet pressure is configured according to the user's pressure requirements. Air positive flow expansion is used and the liquid product can be increased appropriately.
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Jul 30, 2021
Torrential rainfall hit Henan a few days ago and has inflicted heavy casualties and property losses. In the rainfall, Zhengzhou and Xinxiang were suff
May 09, 2021
On May 6, the conference of DEAR Air Separation celebrated May 1st International Labor Day and the provincial “May 1st” advanced Model Recognition Con
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New material industry is a new field with vitality and development potential in chemical industry. New chemical materials refer to the advanced materials with excellent performance and function emerging or developing in the field of chemical industry. They are knowledge intensive and technology intensive materials with high technology content and high value. In the fine chemical industry, advantageous enterprises are actively building intelligent digital workshops, accelerating the application of intelligent logistics management technology and unit in the production process, and promoting digital control, real-time monitoring of status information and adaptive control. DEAR air separation can provide customers with intelligent air separation unit and overall operation services, help customers develop rapidly in the industry, and constantly improve the construction of intelligent detection and supervision system, so that customers can reach a new level of intelligent management of air s
Large air separation plant KDON (Ar)-18000/36000-600 solution for chemical industry
Chemical industry has the characteristics of large scale, long industrial chain and so on. It is the basic industry and an important part of Chinese national economy. In recent years, environmental protection has been paid more and more attention, and the green development of chemical industry is also very important. In addition, the chemical industry in the industrial integration, scientific and technological innovation is also in constant efforts to advance. DEAR air separation helps the chemical industry to transform and upgrade to be environmental-friendly. DEAR’s large-scale air separation plant KDON (Ar) - 18000 / 36000-600 can use ultra-low pressure discharge energy-saving air separation technology patent, which can reduce the energy consumption of equipment operation by 5% - 15% and save a lot of production costs.
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At present, the crude argon condensing column process is used in the double column process. The rigid connection between the main stream process and the argon extraction process is artistic both in design and operation. If there is a slight difference, it will be a thousand miles away. Secondly, to achieve the oxygen content index, the number of theoretical plates is 200, which has reached the limit of the project. ...
Nov 23, 2021
In the operation, the methods to improve the oxygen extraction rate are as follows: when the potential of upper column distillation is allowed, all the expanded air is sent to the upper column as far as possible; When the oxygen purity reaches the standard or meets the needs of users, increase the amount of oxygen taken out; Try to improve the average nitrogen purity or reduce the oxygen content of sewage nitrogen; As far as possible ...
Nov 22, 2021
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