Bed Vessel Treating Zones for Stream Redistribution
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Solution Overview
Problem
Bed vessels in the process industry face challenges with inadequate stream flow distribution, leading to channeling and inefficient utilization of processing internals, resulting in reduced productivity and profitability, and require costly and complex conventional devices for flow redistribution.
Innovation Solution
The implementation of redistribution treating zones within bed vessels, which contain treating materials that facilitate the dispersion of streams across processing zones, allowing solid processing material elements to commingle and enhance stream distribution without the need for physical barriers or complex equipment, thereby improving contact with processing materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional devices are used for flow redistribution, then stream distribution is improved, but device complexity and cost increase
Solution Approach 1:
The bed vessel internals perform dual functions: they conduct processing operations and simultaneously redistribute streams. The solids processing material elements themselves act as the redistribution mechanism, eliminating the need for separate redistribution devices. This self-service approach resolves the contradiction by making the existing internals serve both purposes without adding complexity.
Solution Approach 2:
The bed vessel internals are designed to perform multiple functions: processing operations and stream redistribution. By making the internals universal components that handle both tasks, the patent eliminates the need for separate redistribution devices, thereby reducing device complexity while maintaining reliable stream distribution.
2Reliability
If conventional devices are used for flow redistribution, then stream distribution is improved, but space consumption increases
Solution Approach 1:
The existing bed vessel internals serve dual purposes as both processing media and redistribution elements. By utilizing the space already occupied by processing materials for redistribution functions, no additional space is consumed, resolving the contradiction between achieving good stream distribution and minimizing space usage.
Solution Approach 2:
The patent merges the stream redistribution function with the processing internals. Instead of adding separate redistribution devices that would consume additional space, the redistribution capability is integrated into the existing internals, thereby maintaining stream distribution effectiveness without increasing volume consumption.
3Device complexity
If stream flow channeling occurs, then device simplicity is maintained, but productivity decreases
Solution Approach 1:
The bed vessel internals automatically perform stream redistribution as part of their processing function, preventing channeling without requiring additional complex devices. This self-service mechanism maintains device simplicity while eliminating productivity losses from channeling through the inherent redistribution capability of the internals.
Data Source
AI summary
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.