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.

Date of Patent:
Feb. 14, 1995

Filed:

Mar. 17, 1993
Applicant:
Inventors:

Edward K Liu, Houston, TX (US);

John C Strickland, Houston, TX (US);

Ting Y Chan, Houston, TX (US);

Assignee:

Texaco Inc., White Plains, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208157 ; 208153 ; 208158 ;
Abstract

In an ebullated bed process the feedstock conduit is provided with at least 50 psi (4.4 atm) head in excess of a liquid-vapor separation pressure. The excess head is used in combination with an eductor to recycle a reactor effluent liquid. The expanded catalyst bed is thereby maintained at 110 vol % to vol % of a settled catalyst volume. A separate pump to expand (ebullate) the catalyst bed is not required.


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