A sulfur trioxide production increase operation control optimization device
A sulfur trioxide, operation control technology, applied in inorganic chemistry, sulfur compounds, chemical instruments and methods, etc., can solve the problems of inability to meet market needs, inability to increase production, corrosion, etc., to reduce the production of 98 acid and prolong the service life. , the effect of simple construction and operation
Active Publication Date: 2020-04-07
ANHUI HUAERTAI CHEM IND
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Problems solved by technology
[0002] The sulfur trioxide plant in the sulfuric acid workshop has a current shift output of 25 tons, which cannot meet market demand
The current technology used is to evaporate and condense 109% oleum into sulfur trioxide. However, the back acid concentration of the oleum evaporator is not less than 104.5%. degree of corrosion
Therefore, the output of 109% oleum is constant, and the output of sulfur trioxide cannot be improved (109% oleum is 40% oleum, 104.5 oleum is 20% oleum)
Method used
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Embodiment 1
[0017] Example 1, a sulfur trioxide production increase operation control optimization device, including the first fuming sulfuric acid tower 1, the first circulating acid tank 2, the first circulating acid cooler 14, the first finished product cooler 13, the second fuming Sulfuric acid tower 3, second circulating acid tank 4, second circulating acid cooler 12, oleum underground tank 6, oleum preheater 9, sulfur trioxide condenser 15 and oleum evaporator 8, described The outlet of the first circulating acid cooler 14 is connected with the outlet of the second circulating acid cooler 12 through the first connecting pipe 11, and the return outlet of the oleum preheater 9 is connected with the fuming sulfuric acid through the second connecting pipe 5. The underground tank 6 is connected, and the underground tank 6 for fuming sulfuric acid is connected with the first product cooler 13 through the third connecting pipe 10, and the underground tank 6 for fuming sulfuric acid is provi...
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The invention discloses an operation control optimization device capable of achieving yield increase of sulfur trioxide. The device comprises a first niacin tower, a first circulation acid tank, a first circulation acid cooler, a first finished product cooler, a second nicotinate tower, a second circulation acid tank, a second circulation acid cooler, a niacin underground tank, a niacin preheater,a sulfur trioxide condenser and a niacin evaporator, and the device has the characteristics that the outlet of the first circulation acid cooler is connected with the outlet of the second circulationacid cooler through a first connecting pipe, a reflux outlet of the niacin preheater is connected with the niacin underground tank through a second connecting pipe, the niacin underground tank is connected with the first finished product cooler through a third connecting pipe, and an adding pipe is arranged on the niacin underground tank. The device has simple operation design, high and comprehensive practicability and easy promotion and application.
Description
Technical field: [0001] The invention relates to the technical field of sulfur trioxide production, in particular to a sulfur trioxide production increasing operation control optimization device. Background technique: [0002] The sulfur trioxide plant in the sulfuric acid workshop has a current shift production of 25 tons, which cannot meet market demand. The current technology used is to evaporate and condense 109% oleum into sulfur trioxide. However, the back acid concentration of the oleum evaporator is not less than 104.5%. degree of corrosion. Therefore 109% oleum class output is certain, and the output of sulfur trioxide just can't improve (109% oleum is 40% oleum, and 104.5 oleum is 20% oleum). Invention content: [0003] The existing technology is difficult to meet people's needs. In order to solve the above-mentioned existing problems, the present invention proposes a sulfur trioxide production increase operation control optimization device. [0004] In order ...
Claims
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IPC IPC(8): C01B17/74
CPCC01B17/74
Inventor 徐根松张先兵
Owner ANHUI HUAERTAI CHEM IND