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:
May. 26, 1998
Filed:
Oct. 23, 1996
Brian J Kelly, Corona, CA (US);
Peter F Roueche, Longview, TX (US);
Uop, Des Plaines, IL (US);
Abstract
A prior art quench-type, direct contact, heat exchanger device used especially between catalyst beds in a reactor vessel, is modified to include a liquid-liquid pre-mixing baffle upstream of a gas-liquid heat exchange section. The pre-mixing reduces the fluid non-homogeneity experienced by current quench type heat exchangers in certain applications. The baffle not only pre-mixes non-homogeneous fluid stream portions, but provides a pair of liquid streams which impinge within the prior art heat exchange device. The pre-mixing and impingement improves the heat transfer process within the prior art device. The relatively low velocity liquid flowrate upon which the baffle operates minimizes any added pressure loss. The pre-mixing baffles also provide some acceleration and increased contact with the quench gas stream to further improve heat transfer with only a moderate effect upon the overall pressure drop across the device. The upstream baffle avoids downstream product liquid deviations caused by radial and lateral input liquid non-homogeneities while minimizing any added pressure loss.