Charles C Hager

US Patent:

43123880, Jan 26, 1982

Filed:

Feb 12, 1980

Appl. No.:

6/120817

Inventors:

Charles C. Hager - Crestwood KY
Warner Long - Louisville KY
George T. Hempenstall - Middletown KY

International Classification:

B65B 104

US Classification:

141 1

Abstract:

A dust control apparatus in the form of a hood is disclosed for minimizing or eliminating the evolution of dust when loading dust laden solid discrete particles from a large container to a series of small containers. The apparatus is designed specifically for unloading spent catalysts from catalytic vessels into a series of drums without evolution of voluminous clouds of dust. The apparatus and method are designed to be portable so that expensive and sophisticated installations are not required in instances where the vessels are infrequently unloaded. The dust control hood makes use of the angle of repose of the solid discrete particles to be transferred in such manner that the drums do not overfill. Simultaneously air is drawn across the hood and the dust is collected in a suitable filter at a distance away from the loading area. Provision is also made for separation and collection of dust from pyrophoric materials utilizing an inert gas rather than air as the carrier medium.

US Patent:

41608062, Jul 10, 1979

Filed:

May 9, 1977

Appl. No.:

5/795121

Inventors:

Warner D. Long - Louisville KY
Charles C. Hager - Crestwood KY
George T. Hempenstall - Middletown KY

International Classification:

B01J 802
B01J 3712
F25D 1500

US Classification:

422223

Abstract:

A mobile catalyst treatment unit and process of operating same involves a closed gas processing loop supported on a normally mobile carrier such as a flat truck bed or trailer which is connectable with the inlet and outlet of a catalytic reactor. The normal process gas is cut off from the catalytic reactor so as to isolate the catalyst and to place the gas processing loop into communication with the reactor. Thereafter, the catalytic reactor can be purged of reducing gases and then treated with an oxidizing gas to burn off carbonaceous materials from the catalyst surface, in the process known as regeneration, or the catalyst can be treated with a reducing gas in the process known as reduction, or the catalyst can be heated for startup purposes, or cooled down for purposes of unloading or other mechanical work on the reactor or treated with other treatment gases such as hydrogen sulfide for sulfiding and the like. The advantage of the equipment and the process is that the catalyst can be treated without the entire plant being in operation. Accordingly, the catalytic reactor is in condition to go directly on stream, thus reducing down time and increasing the production time.