초록 ▼

A method of flue-gas cleaning comprising the separation of water-soluble substances from flue gases containing water vapor. The invention is characterized in that the flue gases are caused to be cooled by direct contact between flue gas and atomized water in two or more separation steps, where in a

A method of flue-gas cleaning comprising the separation of water-soluble substances from flue gases containing water vapor. The invention is characterized in that the flue gases are caused to be cooled by direct contact between flue gas and atomized water in two or more separation steps, where in a separation step (2) subsequent in the flow direction of the flue gases the flue gases are cooled by atomized water to a temperature, at which the water in the flue gases is condensed out, which water is collected and thereafter both recirculated for utilization in said subsequent separation step (2) and introduced into a separation step (1) prior in the flow direction of the flue gases. In said prior separation step the water is atomized and meets uncleaned flue gases, the water-soluble and potentially water-soluble substances of which thereby are solved in the atomized water. The water thus impurified is collected for further treatment.

대표청구항 ▼

A method of flue-gas cleaning, comprising the separation of water-soluble substances from flue gases containing water vapour, where the flue gases are caused to directly contact atomized water in two or more separation steps, characterized in that the water necessary for the method during operation

A method of flue-gas cleaning, comprising the separation of water-soluble substances from flue gases containing water vapour, where the flue gases are caused to directly contact atomized water in two or more separation steps, characterized in that the water necessary for the method during operation is extracted from the flue gases in a subsequent separation step in the flow direction of the flue gases, in which step the flue gases are cooled by atomized water to a temperature, at which the water in the flue gases in condensed out, which water is collected and thereafter both recirculated for being utilized in said subsequent separation step and introduced into a prior separation step in the flow direction of the flue gases, in which prior separation step the water is caused to be atomized and to meet uncleaned flue gases, the water soluble and potentially water soluble substances of which thereby are solved in the atomized water, and that the water thus impurified is discharged from said prior step and is collected to be further treated and wherein the water which is collected in said subsequent separation step and is recirculated, is cooled by a cooler, located, in the flow direction, after the vessel of the subsequent separation step but before introduction into said prior separation step.