Method for dry desulfurizing flue gases

Details Method for dry desulfurizing flue gases Method for dry desulfurizing flue gases

1996-09-05

1997-09-16

Straub, Gary P.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106762, 42324401, 42324407, B01D 5350

Patent

active

056675828

ABSTRACT:
The present invention relates to a method for dry desulfurizing flue gases from rotary cement kilns, for which additives suitable for binding SO.sub.2, such as quick lime and/or dry calcium hydroxide, are supplied to the kiln, the additive being introduced into a flue gas-carrying zone at the kiln head at a injection angle of 2.degree. to 12.degree. to the axis of the kiln and at an injection velocity of 20 to 80 m/sec.

REFERENCES:
patent: 3589920 (1971-06-01), Ostberg et al.
patent: 4286993 (1981-09-01), Lovichi et al.
patent: 4708855 (1987-11-01), Morrison
patent: 4891194 (1990-01-01), Kubisa et al.
patent: 5137704 (1992-08-01), Eschenburg
"Chemical Engineers' Handbook" By Perry et al.; 5th edition; McGraw Hill Co. 1973 pp. 20-36 to 20-40 (no month).

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