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 improving flow distribution of one or more streams in a process vessel comprising:
passing the one or more streams through an upstream processing zone and a downstream processing zone within the process vessel, the upstream processing zone and downstream processing zone each containing one or more beds of processing materials; and
passing the one or more streams through a redistribution treating zone located between the upstream processing zone and downstream processing zone,
wherein the redistribution treating zone has a depth of four feet or less and contains treating elements,
and wherein the redistribution treating zone mitigates stream channeling of the streams exiting the upstream processing zone and affects lateral redistribution of the flow of the one or more streams within the downstream processing zone,
and wherein the treating elements have more than one opening passing therethrough,
and wherein the treating elements have asperities formed on the surfaces thereof, the asperities comprising one or more of flutes, fins and struts,
and wherein the treating elements have one or more open cells which form a plurality of interconnected fluid flow pathways within and through each treating element,
and wherein the treating elements are up to 100 times the size of the individual processing materials within the process vessel.
2. The method of claim 1 , wherein no space between the upstream processing zone and the redistribution treating zone is consumed by a structure internal to the process vessel.
3. The method of claim 1 , wherein the redistribution treating zone is directly adjacent to the upstream processing zone, and wherein the processing materials in the upstream processing zone are sized such that at least some of the processing materials can migrate into the redistribution treating zone to create a combo-zone having both processing zone functionality and treating zone functionality.
4. A vessel for treating one or more process streams, the vessel comprising:
an upstream processing zone containing one or more beds of processing materials;
a downstream processing zone containing one or more beds of processing materials; and
a redistribution zone located between the upstream processing zone and the downstream processing zone, the redistribution zone containing a plurality of treating elements capable of facilitating flow distribution of the one or more process streams,
wherein the redistribution treating zone has a depth of four feet or less,
and wherein the redistribution treating zone mitigates stream channeling of the streams exiting the upstream processing zone and affects lateral redistribution of the flow of the one or more streams within the downstream processing zone,
and wherein the treating elements have more than one opening passing therethrough,
and wherein the treating elements have asperities formed on the surfaces thereof, the asperities comprising one or more of flutes, fins and struts,
and wherein the treating elements have one or more open cells which form a plurality of interconnected fluid flow pathways within and through each treating element,
and wherein the treating elements are up to 100 times the size of the individual processing materials within the process vessel.
5. The vessel of claim 4 , wherein no space between the upstream processing zone and the redistribution treating zone is consumed by a structure internal to the process vessel.
6. The vessel of claim 4 , wherein the redistribution treating zone is directly adjacent to the upstream processing zone, and wherein the processing materials in the upstream processing zone are sized such that at least some of the processing materials can migrate into the redistribution treating zone to create a combo-zone having both processing zone functionality and treating zone functionality.
7. A method of improving flow distribution of one or more streams in a process vessel comprising:
passing the one or more streams through an upstream processing zone and a downstream processing zone within the process vessel, the upstream processing zone and downstream processing zone each containing one or more beds of processing materials; and
passing the one or more streams through a redistribution treating zone located between the upstream processing zone and downstream processing zone,
wherein the redistribution treating zone has a depth of four feet or less and contains treating elements,
and wherein the redistribution treating zone mitigates stream channeling of the streams exiting the upstream processing zone and affects lateral redistribution of the flow of the one or more streams within the downstream processing zone,
and wherein the treating elements have a reticulated structure,
and wherein the treating elements are up to 100 times the size of the individual processing materials within the process vessel,
wherein no space between the upstream processing zone and the redistribution treating zone is consumed by a structure internal to the process vessel.
8. The method of claim 7 , wherein the redistribution treating zone is directly adjacent to the upstream processing zone, and wherein the processing materials in the upstream processing zone are sized such that at least some of the processing materials can migrate into the redistribution treating zone to create a combo-zone having both processing zone functionality and treating zone functionality.
9. The method of claim 8 , wherein the processing materials from the upstream processing zone that migrate into the redistribution treating zone comingle with the treating elements of the redistribution treating zone and occupy at least 20% of the volume of that portion of the layer of treating materials contained in the redistribution treating zone into which the solid processing material elements have migrated.
10. A vessel for treating one or more process streams, the vessel comprising:
an upstream processing zone containing one or more beds of processing materials;
a downstream processing zone containing one or more beds of processing materials; and
a redistribution zone located between the upstream processing zone and the downstream processing zone, the redistribution zone containing a plurality of treating elements capable of facilitating flow distribution of the one or more process streams,
wherein the redistribution treating zone has a depth of four feet or less,
and wherein the redistribution treating zone mitigates stream channeling of the streams exiting the upstream processing zone and affects lateral redistribution of the flow of the one or more streams within the downstream processing zone,
and wherein the treating elements have a reticulated structure,
and wherein the treating elements are up to 100 times the size of the individual processing materials within the process vessel,
and wherein no space between the upstream processing zone and the redistribution treating zone is consumed by a structure internal to the process vessel.
11. The vessel of claim 10 , wherein the redistribution treating zone is directly adjacent to the upstream processing zone, and wherein the processing materials in the upstream processing zone are sized such that at least some of the processing materials can migrate into the redistribution treating zone to create a combo-zone having both processing zone functionality and treating zone functionality.
12. The vessel of claim 11 , wherein the processing materials from the upstream processing zone that migrate into the redistribution treating zone comingle with the treating elements of the redistribution treating zone and occupy at least 20% of the volume of that portion of the layer of treating materials contained in the redistribution treating zone into which the solid processing material elements have migrated.
13. The method of claim 7 , wherein no space between the upstream processing zone and the downstream processing zone is consumed by a structured engineered device internal to the process vessel.
14. The vessel of claim 10 , wherein no space between the upstream processing zone and the downstream processing zone is consumed by a structured engineered device internal to the process vessel.