Method and arrangement for separating contaminants from liquids or vapors

An assembly for purification of liquids or vapors at an evaporation plant having at least one evaporator vessel or condenser equipped with a vapor duct, wherein the assembly comprises:

• generating vapor in an evaporator vessel of the at least one evaporator vessel and ducting the vapor from the evaporator vessel to a vapor duct connected to the evaporation vessel;
• a device for spraying or distributing a liquid into vapor flowing through the vapor duct or onto wall surfaces in the vapor duct;
• a drain in or adjacent the vapor duct for separating a mixture liquid formed by mixing the liquid and vapor in the vapor duct, and
• a coupling for the vapor duct downstream of the drain and connecting a vapor discharge end of the vapor duct to a second one of the at least one evaporator vessel or condenser.

A method to purify fluids in an evaporation plant including a vapor duct, the method comprising:

• generating vapor in an evaporation vessel and ducting the vapor to an inlet to the vapor duct, wherein the vapor duct is connected to the evaporation vessel;
• injecting a liquid into the vapor flowing through the vapor duct;
• as the vapor and injected liquid interact in the vapor duct, contaminates from the vapor or injected liquid are transferred to a resulting mixture liquid or mixture vapor;
• separating in the vapor duct the mixture liquid from the mixture vapor in the vapor duct, and
• after separating the mixture liquid, transporting the mixture vapor from the vapor duct to a vapor treatment device in the evaporation plant.

A method for purification of liquids or vapors at an evaporation plant, the method comprising:

• introducing vapor from an evaporator vessel in the evaporation plant to a vapor duct, wherein the vapor duct is connected to the evaporator vessel;
• spraying or distributing a liquid into the vapor flowing through the vapor duct or onto wall surfaces in the vapor duct;
• separating in the vapor duct contaminates from at least one of the liquid or the vapor by transferring the contaminates between the liquid and the vapor to form in the vapor duct a mixture liquid and a mixture vapor;
• separating the mixture liquid and the mixture vapor, and
• after separating the mixture liquid, transporting the mixture vapor to a vapor treatment device in the evaporation plant.