Bed Vessel Treating Elements for Stream Redistribution Across Beds
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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 risky conventional structured engineering devices for flow redistribution.
Innovation Solution
The implementation of redistribution treating zones with treating materials, such as form-fit materials and randomly-packed treating elements, to facilitate the dispersion of streams across processing zones, allowing solid processing material elements to migrate and commingle, creating a combo-zone that enhances stream distribution and interaction with processing materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional structured engineering devices are installed for flow redistribution, then stream flow distribution is improved, but device complexity and cost increase
Solution Approach 1:
The patent employs porous treating elements with controlled pore structures to facilitate stream distribution. These porous materials naturally create flow paths and distribute streams without requiring complex structured engineering devices, thus improving ease of operation while reducing device complexity
Solution Approach 2:
The patent uses composite treating elements that combine multiple materials with different properties to achieve both structural integrity and effective flow distribution. This composite approach replaces complex single-function devices with integrated multi-functional elements, reducing overall device complexity while maintaining operational effectiveness
2Ease of operation
If conventional structured engineering devices are installed for flow redistribution, then stream flow distribution is improved, but space consumption increases
Solution Approach 1:
Porous treating elements provide high surface area and flow distribution capability within compact volumes. The porous structure allows streams to be distributed effectively without requiring large device footprints, thus improving stream flow distribution while minimizing space consumption
Solution Approach 2:
The treating elements are designed to be packed densely within the bed vessel, with smaller elements nested within the void spaces of larger elements. This nesting arrangement maximizes the use of available space, providing effective flow distribution without increasing overall device volume
3Ease of operation
If conventional structured engineering devices are installed for flow redistribution, then stream flow distribution is improved, but operational reliability decreases due to hot spots and damage risks
Solution Approach 1:
The porous structure of the treating elements promotes uniform stream distribution and prevents channeling, which eliminates hot spots and reduces thermal stress on the vessel and internals. This improves operational reliability by preventing damage while maintaining effective flow distribution
Solution Approach 2:
The treating elements are designed with specific physical and chemical parameters optimized for the process conditions, including temperature and pressure ranges. This parameter optimization ensures stable operation and prevents degradation or failure, thereby improving reliability while maintaining flow distribution effectiveness
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution improves bed vessel performance and profitability by increasing contact between streams and processing materials, reducing the need for costly devices, minimizing space consumption, and avoiding operational risks, while maintaining effective stream flow redistribution.
Implementation Method 1
utilize suitable materials to promote flow distribution for streams entering bed vessels. The purpose of such distribution is to subdivide the streams into rivulets which improve stream contact with bed vessel processing materials
Implementation Method 2
allowing solid processing material elements to migrate and commingle, creating a combo-zone that enhances stream distribution and interaction with processing materials
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.