Rotating Packed Bed Absorber with Hydraulic Drive
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Solution Overview
Problem
Conventional rotating packed bed technologies for removing impurities from gas streams are energy-intensive and require complex equipment, often resulting in poor separation efficiency.
Innovation Solution
The method involves a rotating packed bed absorber with rotatable packing rings, where a liquid solution absorbs impurities from a feed gas stream, and the pressure-reduced impurity-rich liquid solution has its energy recovered to power the system, allowing for efficient separation and reduced energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional rotating packed bed technology is used to remove impurities from gas streams, then separation function is achieved, but energy consumption is high
Solution Approach 1:
The system uses the pressure energy of the liquid solution itself to drive the rotation of the packed bed. The high-pressure liquid solution enters the rotating packed bed and its pressure drop drives the rotation, eliminating the need for external motors and significantly reducing energy consumption while maintaining effective separation.
Solution Approach 2:
The invention utilizes hydraulic principles by using the pressurized liquid solution flow to generate mechanical rotation. The pressure-driven flow through the rotating packed bed creates torque that rotates the packing, converting hydraulic energy directly into mechanical motion for the separation process.
2Device complexity
If conventional rotating packed bed technology is used, then separation is achieved, but equipment complexity is high
Solution Approach 1:
The invention extracts and eliminates the complex motor drive system, bearings, and external power transmission components from conventional rotating packed beds. By using pressure-driven rotation, only the essential rotating packed bed structure and distribution system remain, significantly simplifying equipment while maintaining separation performance.
Solution Approach 2:
The invention replaces the mechanical motor-driven rotation system with a pressure-driven hydraulic rotation system. This substitution eliminates complex mechanical components such as motors, couplings, and bearings, reducing equipment complexity while achieving the same rotational function necessary for effective separation.
3Loss of energy
If pressure reducing device is added to recover energy, then energy recovery is improved, but device complexity increases
Solution Approach 1:
The invention merges the pressure reducing device with the existing liquid distribution system of the rotating packed bed. The pressure reduction and energy recovery functions are integrated into the liquid delivery mechanism, allowing energy recovery without adding separate complex systems. The pressure-reduced liquid continues to serve its absorption function while driving rotation.
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 approach achieves effective impurity removal with reduced energy usage and simpler equipment, enhancing separation efficiency and operational safety while being applicable to various industrial processes.
Implementation Method 1
contacting occurs under conditions such that the liquid solution absorbs impurity to produce an impurity-rich liquid solution
Implementation Method 2
The pressure of the impurity-rich liquid solution is reduced. At least a portion of any energy produced is recovered.
Data Source
AI summary
The present invention relates to a method and system for removing an impurity from a feed gas stream. Various embodiments include, for example, using a rotating packed bed, a pressure reducing device such as a turbine and/or control valve, a regenerator, and novel internal seal designs and liquid distributors. Advantageously, at least a portion of any energy produced is recycled for use in the process or elsewhere.