The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2019
Filed:
Dec. 16, 2016
Basf SE, Ludwigshafen am Rhein, DE;
Ulrich Hammon, Mannheim, DE;
Thomas Walter, Hassloch, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
The present invention relates to a column () for thermal treatment of fluid mixtures, having a cylindrical, vertically aligned column body () which forms a column cavity (), having a sequence of vertically spaced-apart dual-flow mass transfer trays () which are mounted in the column cavity () and which have orifices for passage of liquid and gas in countercurrent, and having at least one gas entry orifice () disposed below the lowermost of the sequence of dual-flow mass transfer trays (). It is a characteristic feature of the column of the invention that a gas distribution tray () which is disposed between the lowermost of the sequence of dual-flow mass transfer trays () and the gas entry orifice () has orifices () for vertical passage of gas which can be introduced into the column cavity () via the gas entry orifice (), the orifices () being formed so as to bring about equal gas distribution over the column cross section. The invention further relates to a process for thermal treatment of fluid mixtures in such a column ().