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:
Oct. 15, 1991
Filed:
Feb. 02, 1990
Luzian Skatulla, Mulheim/Ruhr, DE;
Hans-Jurgen Vollmer, Essen, DE;
Krupp Koppers GmbH, Essen, DE;
Abstract
A stripping column installation especially for separating starting materials with a high boiling point difference comprises a stripping column having a withdrawal plate and a column sump, and a circulating boiler connected with the stripping column and having a pipe bundle through which a sump product from the stripping column flows. The circulating boiler has an upper plate and a separating wall which separates a space above the upper plate into two chambers. One of the chambers has a connection for receiving the sump product from the stripping column, while the other of the chambers has a connection for discharging the sump product after heating in the boiler. The circulating boiler is located relative to the stripping column so that a height difference is produced between a liquid level on the withdrawal plate of the stripping column and the upper plate of the circulating boiler, the height difference having a value selected so that a total pressure of a liquid column at each point of a first portion of a pipe path in the circulating boiler lies above the vapor pressure of the sump product to be heated.