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:
Nov. 10, 1992
Filed:
Jan. 24, 1990
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
K.T.I. Group B.V., Zoetermeer, NL;
Abstract
A stream of process gas is indirectly heated in an elongated reaction chamber (1) with a longitudinal axis, a first end (12) and a second end (13) and defined by an outside shell (2) and a thermally conductive inner wall (4). The inner wall defines at least one recess or cavity (3) which extends substantially between the first and second end of the chamber and parallel to the longitudinal axis thereof. A process feed line (6) and a product-gas discharge line (7) are provided at opposite ends (12, 13) of the chamber. A heat conductive and heat resistant barrier (8) which defines an interior space extends coaxially with the recess or cavity (3) substantially along the entire length of the inner wall (4) and forms an annular space (9) therewith. A hot flue gas feed line (10) and a flue gas discharge line (11) is provided at one end (13) of the chamber. The hot gas feed line (10) leads directly into the interior space of the barrier (8) and the annular space (9) is in fluid communication with the interior space of the barrier (8) at the end (12) of the chamber which is opposite to the location of the hot flue gas feed line (10).