APPARATUS FOR PRODUCING DILUTE SULFURIC ACID AND METHOD FOR PRODUCING DILUTE SULFURIC ACID
A dilute sulfuric acid manufacturing apparatus 40 includes: a pipeline 42 or the like through which a raw material containing at least a sulfur component, a nitrogen component, and 40 to 80 wt.% or more of a water component are supplied; a PVSA 45d or the like that generates an oxygen-containing gas...
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| creator | KOYAMA, Naomichi KUSUDA, Hiromasa MIYAZAKI, Hitoshi HINAGA, Aoi NISHIDE, Tsutomu KAWAHATA, Satoshi ISHIDA, Yuichiro WATANABE, Shuhei MIZUNO, Yuta OKADA, Hideaki HASEBE, Yusuke |
| description | A dilute sulfuric acid manufacturing apparatus 40 includes: a pipeline 42 or the like through which a raw material containing at least a sulfur component, a nitrogen component, and 40 to 80 wt.% or more of a water component are supplied; a PVSA 45d or the like that generates an oxygen-containing gas having an oxygen concentration of 22 to 40 vol.%; a combustion furnace 51 that combusts the raw material with the oxygen-containing gas to generate a combustion gas containing sulfur oxide (SOx: here, 1 ≤ x < 3) and 10 vol.% or more of a water component; a exhaust heat boiler 52 that cools the combustion gas; a converter 61 that oxidizes the sulfur oxide (SOx) with a catalyst to generate a reaction gas containing sulfur trioxide (SO3); and a dilute sulfuric acid tower 71 that cools the reaction gas to generate dilute sulfuric acid, in which less than 90 wt.% of the dilute sulfuric acid is generated only from the water component of the raw material without adding water from at least the combustion furnace 51 to the dilute sulfuric acid tower 71. |
| format | Patent |
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| subjects | AMMONIA CHEMISTRY COMPOUNDS THEREOF CYANOGEN INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS |
| title | APPARATUS FOR PRODUCING DILUTE SULFURIC ACID AND METHOD FOR PRODUCING DILUTE SULFURIC ACID |
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