Patent ID: 8518157

Claim:
A reflow soldering system containing a process gas and a purification system for purifying the gas comprising: a receptacle comprising at least a first and a second section, wherein each of the at least first and second sections comprise: a bed of packing, a cooler configured to cool a temperature of a liquid fluid in the receptacle and the bed of packing, and an electrostatic filter or a mechanical filter; an arrangement comprising at least one splay nozzle or at least one drop dispenser, wherein the arrangement is configured to: feed the liquid fluid from above and onto each of the beds of packing, and moisten each of the beds of packing with the liquid fluid, wherein the liquid fluid flows through each of the beds of packing in a first direction; a gas feed configured to feed the process gas from above and into the receptacle, wherein: the process gas flows through each of the moistened beds of packing in the first direction, and the process gas is brought into contact with the liquid fluid; a gas outlet configured to discharge the process gas from the receptacle after flowing through the beds of packing in the first direction; and a catchment receptacle configured to receive the liquid fluid at the lower end of the receptacle.