Use of treating elements to facilitate flow in vessels
A method for facilitating the distribution of the flow of one or more streams within a bed vessel is provided. Disposed within the bed vessel are internal materials and structures including multiple operating zones. One type of operating zone can be a processing zone composed of one or more beds of solid processing material. Another type of operating zone can be a treating zone. Treating zones can facilitate the distribution of the one or more streams fed to processing zones. The distribution can facilitate contact between the feed streams and the processing materials contained in the processing zones.
1. A method of loading a process vessel comprising:
loading a downstream zone of processing materials into the process vessel;
loading a zone of treating elements into the process vessel above the downstream zone of processing materials; and
loading an upstream zone of processing materials into the process vessel above the zone of treating elements,
wherein the upstream zone of processing materials is loaded such that it is adjacent to the zone of treating elements,
and wherein there is no physical device disposed between the upstream zone of processing materials and the zone of treating elements in the process vessel,
and wherein there is no physical device disposed between the downstream zone of processing materials and the zone of treating elements in the process vessel,
and wherein at least some of the processing elements from the upstream zone are capable of migrating into, and commingling with, treating elements in a section of the zone of treating elements adjacent the upstream zone to form a combination zone having processing and treating functionality.
and wherein the processing materials comprise catalyst and the treating elements comprise a material other than the catalyst of the processing materials.
2. The method of claim 1 , further comprising loading a pre-mixed zone of treating elements and processing elements into the process vessel prior to loading the upstream zone of processing materials.
3. The method of claim 1 , further comprising loading, upstream of the upstream zone of processing materials, a bed zone of materials into the process vessel.
4. The method of claim 3 , wherein the bed zone comprises one or more of filtration materials, treating elements and processing materials.
5. The method of claim 3 , wherein the bed zone comprises one or more materials capable of mitigating undesired species in a process stream prior to the process stream entering the first processing zone.
6. The method of claim 3 , wherein the bed zone comprises one or more materials capable of facilitating distribution of a process stream across a cross section of the upstream processing zone.
7. The method of claim 6 , wherein the process stream comprises a liquid stream, a vapor stream, a combination of a liquid stream and a vapor stream, or a mixture of a liquid stream and a vapor stream.
8. The method of claim 4 , wherein the processing materials and treating elements are sequentially loaded into the process vessel, and wherein the sequential loading into the process vessel facilitates the migration of processing materials into the redistribution zone within the process vessel and facilitates commingling of the processing materials and treating elements during process operations.
9. The method of claim 8 , wherein the sequential loading into the process vessel comprises partial loading of a portion of the treating elements into the redistribution zone, followed by partial loading of the processing materials, followed by additional partial loading of the treating elements, followed by loading of processing materials.
10. The method of claim 8 , wherein commingling of the processing materials and treating elements in the redistribution zone is initially achieved prior to process operations without the need for any of the processing materials to migrate into the redistribution zone during process operations.
11. The method of claim 8 , wherein the zone of treating elements is loaded such that it comprises individual, packed treating elements along its entire height and is directly adjacent to both the upstream zone of processing materials and the downstream zone of processing materials.
12. A method of loading a process vessel comprising:
loading a downstream zone of processing materials into the process vessel;
loading a combo-zone into the process vessel above the downstream zone of processing materials, wherein the combo-zone comprises a mix of processing materials and treating elements; and
loading an upstream zone of processing materials into the process vessel above the combo-zone,
wherein the upstream zone of processing materials is loaded such that it is adjacent to the combo-zone,
and wherein the processing materials comprise catalyst and the treating elements comprise a material other than the catalyst of the processing materials.
13. The method of claim 12 , wherein prior to loading the combo-zone into the vessel, a zone of treating materials is loaded into the process vessel above the downstream zone of processing materials, and wherein the combo-zone is loaded into the vessel above and adjacent to the zone of treating materials.
14. A method of sequentially loading a process vessel comprising:
loading treating materials into the process vessel;
loading processing materials into the process vessel above the treating materials;
loading additional treating materials into the process vessel above the processing materials; and
loading additional processing materials into the process vessel above the additional treating materials,
wherein the sequential loading of the materials into the process vessel facilitates migration of materials between zones within the process vessel and facilitates commingling of the materials in a combo-zone during process operations,
and wherein the treating materials are randomly packed in the process vessel and wherein a liquid stream passing through the treating materials is capable of passing around and through the treating materials,
and wherein the treating materials are larger in size than the processing materials, and wherein the depth of the zone of treating materials loaded between the processing materials is less than the depth of the prior loaded zone of processing materials.
15. The method of claim 14 , wherein commingling of the treating materials and the processing materials is initially achieved prior to process operations without the need for any of the materials to migrate during process operations.
16. The method of claim 14 , wherein at least some of the processing materials and treating materials are mixed during loading.
17. The method of claim 14 , wherein the entire depth of the redistribution zone contains a mix of treating materials and processing materials, such that the redistribution zone comprises a combo-zone throughout its entire depth having both processing zone functionality and treating zone functionality.
18. The method of claim 14 , wherein the depth of the zone of treating materials loaded between the processing materials is less than the depth of both the prior loaded zone of processing materials and the later loaded zone of processing materials.
19. The method of claim 14 , wherein when the process vessel is in operation, a plurality of channeled liquid streams exit the upstream processing zone, and wherein the treating materials facilitate redistribution of the channeled liquid streams, and wherein the redistributed streams enter the downstream processing zone as laterally dispersed streams such that there is improved contact between the laterally dispersed streams and the processing materials in the downstream processing zone.
20. The method of claim 14 , wherein the treating materials and the processing materials comprise different materials.