US 8,025,472 B2 · Catalyst loading system

Abstract

Particulate filling devices and methods are disclosed that use a loading system generally including a loading cart, a drive system, and a line assembly. The drive system generally includes a motor, a drive shaft, a driven shaft, a spool, a plurality of cable partitions, and a controller. Each line assembly generally includes cable sections, swivel connectors, one or more spring blocks and a weight.

Drawings

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Drawings

Claims16

Dependent claims

A particulate loading apparatus to be lowered and raised within a reactor tube in a reactor for filling the reactor tube with the particulate, comprising:

a loading cart configured to be positioned on a tube sheet of the reactor;
a drive system mounted on the loading cart including a variable speed means for driving the particulate loading apparatus into and out of the reactor tubes;
a line assembly attached to the drive system wherein the variable speed means is configured to vary the speed of the line assembly in accordance with a particulate loading rate into the reactor tubes;
a block portion connected to the line assembly;
and
a plurality of springs mounted on the block portion positioned consecutively to form a helix-pattern.

3 more elements

A particulate loading apparatus to be lowered and raised within a reactor tube of a reactor for filling the reactor tube with the particulate, comprising:

a loading cart configured to be positioned on a tube sheet of the reactor;
a drive system mounted on the loading cart, wherein the drive system comprises:
a variable speed means for driving the particulate loading apparatus into and out of the reactor tube;
a controller linked to the variable speed means for driving;
a drive shaft connected to the variable speed means for driving;
a driven shaft connected to the drive shaft;
a spool engaging the driven shaft;
and
a plurality of cable partitions mounted on the spool;
and
a plurality of line assemblies attached between a respective set of cable partitions, wherein the variable speed means is configured to vary the speed of the plurality of line assemblies in accordance with a particulate loading rate into the reactor tubes and wherein each of the plurality of line assemblies includes:
a plurality of block portions connected to the plurality of line assemblies, wherein each of the block portions has a plurality of holes through the block portion;
a plurality of springs mounted through each of the holes in the respective block portions;
a weight mounted in each of the plurality of line assemblies;
and
a plurality of cable sections connected in each of the plurality of line assemblies.

13 more elements

Dependencies are inferred from the claim text.

Description2,639 words

Summary379 words

#Not applicable.

Brief description of the drawings4 figures

#FIG. 1 is a schematic elevation view of one embodiment with a reactor tube shown in cross-section.

#FIG. 2 is a top schematic view of an embodiment of the drive system.

#FIG. 3 is an elevation view of one embodiment of a line assembly depicting one spring block without springs to as to better represent the holes through the block portion.

Detailed description2,186 words

#A loading system 10 (FIG. 1) may be used for loading catalyst (or other) particulate matter 12. The loading system 10 generally includes a loading cart 20, a drive system 30, and a line assembly 60. The loading cart 20 is positioned on a surface such as a tube sheet 14 and diverts/merges the catalyst particulate 12 into individual reactor tubes 16.

#The loading cart 20 could be any commercially available loading cart 20 which may be modified for mounting of the drive system 30. For the loading cart 20 shown, mounting brackets 22 connect to the loading cart 20 to the drive system 30. The line assembly 60 connects to the drive system 30.

#The drive system 30 (FIG. 2) generally includes a motor 32, a drive shaft 34, a driven shaft 36, a spool 38, a plurality of cable partitions 40, and a controller 50. The motor 32 connects and outputs to drive shaft 34. The drive shaft 34 is connected by a connector 42 to the driven shaft 36. The spool 38 engages and is mounted over the driven shaft 36. The plurality of cable partitions 40 (eleven shown in FIG. 2) are attached to the spool 38. The controller 50 is linked to the motor 32.

Facts

Application

11/756,961Filed 1 Jun 2007

Published

US 2008/0298932 A14 Dec 2008

Granted

27 Sep 2011

Term ends

16 Jan 2029

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 595 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification6 codes

B01J 8/002
Feeding of the particles in the reactor; Evacuation of the particles out of the reactor: with a moving instrument
B01J 8/003
Feeding of the particles in the reactor; Evacuation of the particles out of the reactor: in a downward flow
B01J 8/06
With stationary particles, e.g. in fixed beds: in tube reactors; the solid particles being arranged in tubes
B01J 2208/00752
Feeding or discharging of solids: feeding

Timeline

1 Jun 2007Application filedUS 11/756,961
19 Sep 2008Assigned to Catalyst Services, Inc.nunc pro tunc assignment
4 Dec 2008PublishedUS 2008/0298932 A1
27 Sep 2011GrantedUS 8,025,472 B2
28 Dec 2012Assigned to Bank of America, N.A.security agreement
10 Jan 2013Assigned to Clean Harbors Catalyst Technologies, LLCassignment of assignor's interest
1 Sep 2016Assigned to Clean Harbors Catalyst Services, LLCrelease of security interest
2 Sep 2016Assigned to Clean Harbors Catalyst Services, LLC (Fka Clean Harbors Catalyst Technologies, LLC, A Delaware Limited Liability Company Cat Tech, LLC, A Texas Limited Liability Company and Cat Tech, Inc., AS Texas Corporation)corrective assignment to correct the receiving party name previously recorded at reel: 039611 frame: 0794. assignor(s) hereby confirms the release of security interest.
9 Feb 2022Assigned to Clean Harbors Catalyst Services, LLCchange of name
10 Feb 2022Assigned to Jvic Catalyst Services, LLCchange of name
11 Feb 2022Assigned to Quanta Associates, L.P.assignment of assignor's interest
12 Oct 2026TodayWithin its term
16 Jan 2029Term endsEstimated, includes 595 days of adjustment

Catalyst loading system

Life of this patent

Catalyst loading system

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims16

Description2,639 words

Drawings

Classification6 codes

Life of this patent

Description2,639 words