HEAT-STABLE SALT REMOVING SYSTEM, CARBON DIOXIDE RECOVERING SYSTEM AND HEAT-STABLE SALT REMOVING METHOD
First Claim
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1. A heat-stable salt removing system comprising:
- a desulfurizing unit that causes a sulfur oxide contained in exhaust gas to be absorbed by at least part of an absorbing liquid circulating through a carbon dioxide recovering system, and that emits the exhaust gas from which the sulfur oxide is removed; and
an anion removing unit that removes an anion from the absorbing liquid obtained after the desulfurizing unit causes the sulfur oxide to be absorbed.
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Abstract
According to one embodiment, a heat-stable salt removing system comprises a desulfurizing unit that causes a sulfur oxide contained in exhaust gas to be absorbed by at least part of an absorbing liquid circulating through a carbon dioxide recovering system, and that emits the exhaust gas from which the sulfur oxide is removed, the absorbing liquid. A heat-stable salt removing system comprises an anion removing unit that removes an anion from the absorbing liquid obtained after the desulfurizing unit causes the sulfur oxide to be absorbed.
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Citations
12 Claims
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1. A heat-stable salt removing system comprising:
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a desulfurizing unit that causes a sulfur oxide contained in exhaust gas to be absorbed by at least part of an absorbing liquid circulating through a carbon dioxide recovering system, and that emits the exhaust gas from which the sulfur oxide is removed; and an anion removing unit that removes an anion from the absorbing liquid obtained after the desulfurizing unit causes the sulfur oxide to be absorbed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A carbon dioxide recovering system comprising:
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a desulfurizing unit that causes a sulfur oxide contained in exhaust gas to be absorbed by an absorbing liquid, and that emits the exhaust gas from which the sulfur oxide is removed; an absorbing tower that causes carbon dioxide contained in the exhaust gas emitted from the desulfurizing unit to be absorbed by an absorbing liquid, and that emits the absorbing liquid containing the carbon dioxide; a regenerating tower to which the absorbing liquid emitted from the absorbing tower is supplied, that removes carbon dioxide gas containing steam, from the absorbing liquid, and that regenerates and emits the absorbing liquid; an absorbing-liquid storing tank that stores the absorbing liquid emitted by the regenerating tower; and an anion removing unit that removes an anion from the absorbing liquid obtained after the desulfurizing unit causes the sulfur oxide to be absorbed, and that supplies the absorbing liquid after the anion removal, to the absorbing-liquid storing tank, wherein the desulfurizing unit acquires at least part of the absorbing liquid that is emitted from the absorbing-liquid storing tank and is supplied to the absorbing tower.
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12. A heat-stable salt removing method comprising:
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causing a sulfur oxide contained in an exhaust gas to be absorbed by at least part of an absorbing liquid, the absorbing liquid circulating through a carbon dioxide recovering system; and removing an anion from the absorbing liquid that absorbs the sulfur oxide.
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Specification