Technical characteristics of liquid sulfur trioxide production process
2020-03-20
liquid sulfur trioxideAlso known as sulfuric anhydride, is a colorless transparent oily liquid. As a strong oxidant,liquid sulfur trioxideIn addition to the production of high concentrations of fuming sulfuric acid, sodium alkylbenzene sulfonate, sulfonated lubricating oil to make white oil and biopharmaceuticals, it can also be used for sulfonation of organic compounds, sulfation, surfactants and ion exchange resins as reactants, and in the synthesis of sulfonamides, the production of dye intermediates and the refining of petroleum lubricating fractions also played an important role.
With the rapid development of economy,liquid sulfur trioxideThe use of will continue to expand, with broad market prospects. At present, due to the pressure of overcapacity and environmental protection, the sulfuric acid industry is struggling to operate. Most enterprises face losses, urgent need to develop sulfuric acid industryof downstream products. The production of liquid sulfur trioxide is a good choice. The technology is to add a set of nicotinic acid absorption tower to the dry suction section of traditional sulfuric acid production to produce 30% nicotinic acid, and then send the high concentration of nicotinic acid to the evaporator to be heated and evaporated into sulfur trioxide gas, and the gas is condensed into liquid sulfur trioxide product in the condenser.
liquid sulfur trioxideThe reason for the focus of attention is also due to the good technical characteristics of its production and processing. The heating medium of the evaporator is heated by the furnace gas of the conversion section of the original sulfuric acid system. The waste heat is reasonably used, saving a lot of energy. The sulfur oxide condenser is designed to use water as the cooling medium in the tube, use a falling film evaporator to evaporate fuming sulfuric acid, and use a two-layer upper tube plate falling film cooler to ensure safe operation, and high economic benefits are recognized by the market.
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