FIELD: various technological processes.
SUBSTANCE: invention relates to packed contact devices used in heat and mass exchange processes in counterflow packed columns. First of all, this relates to processes of interaction in a “liquid-liquid” system (liquid extraction) and to processes where “gas-liquid” interaction takes place (rectification, absorption, distillation, heat exchange in scrubbers by mixing). Invention can be used in oil and gas processing, petrochemical, gas chemical and other industries. Packing for mass exchange devices, in which flat and to be corrugated sheets are perforated in the form of hexagon with width a and height h, where a<h, wherein the angle at the top of the notch β varies from 60° to 90°. On corrugated expanded metal sheets there are zones without punching or with overlapped punching. Adjacent corrugated sheets are symmetrical to each other relative to the flat sheet between them. Phases are fed into the apparatus by one of the following methods: for “liquid-liquid” systems, when the density of the disperse phase is less than the density of the continuous phase, the dispersed phase is introduced into the lower part of the packing, and the solid phase is introduced into the upper part of the packing; for “liquid-liquid” systems, with density of the disperse phase greater than the density of the continuous phase, the dispersed phase is introduced into the upper part of the packing, and the solid phase is introduced into the lower part of the packing; for “gas-liquid” systems, liquid phase is introduced into the upper part of the packing, and the gas phase is introduced into the lower part of the packing.
EFFECT: proposed invention for mass exchange apparatuses makes it possible to increase path of drops of dispersed phase and time of their stay in packing and, as a result, to increase coefficients of heat and mass transfer, as well as intensify the process of renewing the contact surface of the phases, which will increase the efficiency of fractionation, including with non-wettability of the packing material by the dispersed phase.
4 cl, 12 dwg
