B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 20/22 (2006.01) B01D 53/02 (2006.01) B01D 53/48 (2006.01) C10L 5/44 (2006.01) C10L 9/10 (2006.01)
Patent
CA 2634742
Sulfur emissions from combustion of coal and other fuels are reduced by using sugar beet lime as a sorbent during the coal burning process. In various embodiments, the sugar beet lime is added onto the coal before combustion, along with the coal into the furnace, is injected directly into the fire coal, or is added into the flue gases downstream of the furnace. The relatively high calcium content of the sugar beet lime leads to efficient sulfur capture at suitably low treat levels. Excess ash is avoided in the process.
L'invention concerne des émissions de soufre de la combustion de charbon et d'autres carburants qui sont réduites par l'utilisation de chaux de betterave sucrière comme sorbant pendant le procédé de combustion de charbon. Dans divers modes de réalisation, la chaux de betterave sucrière est ajoutée sur le charbon avant la combustion, conjointement avec le charbon dans le fourneau, et est injectée directement dans le charbon de combustion, ou est ajoutée dans les gaz d'évacuation en aval du fourneau. La teneur relativement élevée en calcium de la chaux de betterave sucrière conduit à une capture efficace de soufre à des niveaux de traitement suffisamment faibles. Un excès de cendres est évité dans le procédé.
Comrie Douglas C.
Gowling Lafleur Henderson Llp
LandOfFree
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