B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
23/360
B01D 47/05 (2006.01) B01D 53/00 (2006.01) B01D 53/26 (2006.01) B01D 53/34 (2006.01) B01D 53/50 (2006.01)
Patent
CA 1298693
(57)Abstract The present invention relates to a process for causing gaseous trace element particles to pass from a flowing hot gas into a dust by means of water. According to the inven- tion, a mixture of the hot gas and water drops is caused to flow substantially up- wards at such a velocity that the water drops remain in the gas flow and for a period long enough for most of the mass of the water drops to evaporate in order to cool the gas and to increase its relative humidity. After the gases have reached their wet temperature they are brought into a turbulent state in order to cause the dust particles and the water drops which have decreased through evaporation to im- pinge against each other in order to pro- duce in the aqueous film which covers the dust particles an exothermal ion reaction between the gaseous water-soluble trace element particles and the dust particles. Thereafter the mixture is caused to flow further in order to evaporate the remaining water by means of the heat of reaction so that a dry end product is obtained.
566357
Hamala Sirpa
Heikkila Matti
Kenakkala Timo
Kokkonen Kari
Laine Jouko
Hamala Sirpa
Heikkila Matti
Kenakkala Timo
Kokkonen Kari
Laine Jouko
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