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:
Jul. 07, 1992
Filed:
Sep. 18, 1987
Applicant:
Inventor:
Thomas S Dewitz, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ; B01J / ;
U.S. Cl.
CPC ...
406 93 ; 406 90 ; 48 6 / ;
Abstract
The suspension density and mass flow rate of a particular solids and gas mixture transported to a reactor is controlled by using a radiation source and detector. The suspension density is measured and compared to a preselected value. The result is converted to a control signal which may be used to control venting from the vessel, and/or the amount of aeration gas supplied to the lower portion of the vessel, in order to maintain the suspension density at the preselected value and provide a constant mass flow rate.