US 12,447,417 B2
Column for thermal treatment of a mixture of compounds having a tendency to polymerization
Ulrich Hammon, Ludwigshafen am Rhein (DE); and Lukas Schulz, Ludwigshafen am Rhein (DE)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 18/284,313
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Mar. 17, 2022, PCT No. PCT/EP2022/057036
§ 371(c)(1), (2) Date Sep. 27, 2023,
PCT Pub. No. WO2022/207349, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 21166189 (EP), filed on Mar. 31, 2021.
Prior Publication US 2024/0157269 A1, May 16, 2024
Int. Cl. B01D 3/32 (2006.01)
CPC B01D 3/328 (2013.01) 15 Claims
OG exemplary drawing
 
1. A column for a thermal treatment of a mixture of compounds having a tendency to polymerization, wherein the column comprises
a cylindrical, vertical column body which forms a column cavity,
at least one mass transfer tray which is disposed in the column cavity and comprises passage orifices, and at least one opening which is surrounded by a rim of the mass transfer tray,
wherein
the mass transfer tray comprises at least one rising tube which is connected to the rim of the mass transfer tray in a gas-tight manner and which comprises
an inlet opening which is located at or below the at least one mass transfer tray, and
an outlet opening which is located above the at least one mass transfer tray, and
at least one lateral opening which is located above the mass transfer tray in a vertical direction close to an upper surface of the mass transfer tray, said rising tube is adapted to form a fountain by atomization of a liquid fraction of the mixture of compounds from the mass transfer tray that enters through at least one lateral opening into the rising tube by a rise of a gas phase of the mixture of compounds flowing from the inlet opening through the rising tube to the outlet opening where the fountain is sprayed into a part of the column located above the mass transfer tray to a spot of the inner surface of the column where polymerization is likely to occur, wherein a pressure difference of trays is exploited as driving force for the spray generation.