Device and method for absorbing free sulfur trioxide in fuming sulfuric acid through concentrated sulfuric acid
A technology of fuming sulfuric acid and sulfur trioxide, applied in chemical instruments and methods, sulfur compounds, inorganic chemistry, etc., can solve problems such as adverse effects of equipment and catalysts, smoke from exhaust chimneys, blockage of degassing pipes, etc., to improve comprehensive Utilization rate, high absorption efficiency, effect of reducing environmental pollution
Active Publication Date: 2017-02-01
JINCHUAN GROUP LIMITED
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Abstract
The invention discloses a device and method for absorbing free sulfur trioxide in fuming sulfuric acid through concentrated sulfuric acid. The device comprises a concentrated sulfuric acid absorption tower, a circulation groove, an arch channel, an overflow pipe, a circulation acid pump, an exhaust suction fan and a degassing and low-altitude exhaust pipe. The concentrated sulfuric acid absorption tower integrates the functions of acid separation, foam catching, liquid sealing and overflowing, it is ensured that sufficient SO3 gas is sufficiently absorbed and does not escape, and concentrated sulfuric acid is recycled; an automatic water supplementing device ensures the best SO3 absorption effect of the concentrated sulfuric acid; the circulation acid pump is adopted as liquid power equipment, the concentrated sulfuric acid is conveyed to a degassing tower acid distributing device, and after uniform distribution is performed through a packing layer, sufficient reverse flow contact of gas and liquid phases is achieved; the exhaust suction fan is adopted as gas power equipment, free SO3 gas escaping from a 104.5% fuming sulfuric acid storage tank, an acid containing device and an underground tank are sucked into the absorption tower to be sufficiently absorbed, gas reaching the standard is exhausted out, and the sulfur resource comprehensive utilization rate is increased.
Application Domain
Sulfur compounds
Technology Topic
ChemistryAbsorption effect +8
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