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 vessel for treating a process stream, the vessel comprising:
a first processing zone containing a plurality of randomly packed processing materials;
a second processing zone containing a plurality of randomly packed processing materials; and
a redistribution zone located between the first processing zone and the second processing zone, the redistribution zone comprising a mix of both processing materials and treating elements, the treating elements having one or more openings formed therein or therethrough,
wherein the redistribution zone is directly adjacent to the first processing zone, and wherein the processing materials in the first processing zone are sized such that at least some of the processing materials can migrate into the redistribution zone to create a combo-zone having both processing zone functionality and treating zone functionality,
and wherein the processing materials comprise catalyst and the treating elements comprise a material other than the catalyst of the processing materials,
and wherein the treating materials are larger in size than the processing materials, and wherein the depth of the redistribution zone is less than the depth of the first processing zone and less than the depth of the second processing zone.
2. The vessel of claim 1 , wherein the treating elements comprise reticulated elements.
3. The vessel of claim 1 , wherein the treating elements are randomly packed within the vessel.
4. The vessel of claim 1 , wherein the elements have one or more openings which allow fluid to flow into or through the internal body of the element.
5. The vessel of claim 1 , wherein the treating elements are capable of mitigating stream channeling of the process stream as it passes from the first processing zone and increases lateral distribution of the flow of the process stream as it passes to the second processing zone.
6. The vessel of claim 1 , wherein the redistribution zone is located adjacent to both the first processing zone and the second processing zone.