Method of combusting a sulfur-containing carbonaceous material with ash treatment
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United States of America Patent
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Sep 1, 2020
Grant Date -
Jul 13, 2017
app pub date -
Jan 8, 2016
filing date -
Jan 8, 2016
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Abstract
A method of combusting a sulfur-containing carbonaceous material with ash treatment includes: feeding a feed containing the sulfur-containing carbonaceous material and limestone into a furnace; combusting the feed in the furnace so as to generate preliminary fly and bottom ashes; hydrating the preliminary fly and bottom ashes to form a hydrated material; recycling the hydrated materials into the furnace so as to generate secondary fly and bottom ashes; and reacting the secondary fly and bottom ashes with a sulfuric acid solution.
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