Gas-Stream Compound Absorption Above the Water Dew Point
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Solution Overview
Problem
Existing methods for removing components from gas streams are energy-intensive, costly, and inefficient, particularly for industrial and waste gas streams containing water vapor and other chemical compounds, leading to high condensation and increased wastewater discharge, with a need for methods that can produce valuable products like fertilizers for organic farming while reducing condensation and wastewater emissions.
Innovation Solution
A method involving a gas/liquid contactor process that absorbs targeted compounds into a liquid scrubbing solution, reducing condensation and concentrating the absorbed form of the compound, which can be used as a product or processed further, with optional additives to enhance absorption and minimize water vapor condensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional methods are used to remove components from gas streams, then removal efficiency is achieved, but energy consumption increases and condensation of water vapor occurs
Solution Approach 1:
The patent changes the temperature parameter of the gas stream during the absorption process. By maintaining the gas stream temperature above the dew point of water vapor, the method achieves effective removal of targeted compounds (like ammonia) while preventing condensation of water vapor, thus reducing energy consumption and avoiding wastewater generation
Solution Approach 2:
The patent introduces a liquid absorbent as an intermediary substance to facilitate the removal of targeted compounds from the gas stream. The absorbent selectively absorbs compounds like ammonia through mass transfer, enabling efficient separation without requiring energy-intensive condensation or combustion processes
2Measurement precision
If conventional removal methods are applied, then targeted compounds are removed, but wastewater discharge increases
Solution Approach 1:
By controlling the temperature parameter to remain above the dew point, the patent prevents water vapor condensation that would otherwise create wastewater. This parameter change transforms the process from one that generates wastewater to one that produces a reusable liquid stream
Solution Approach 2:
Instead of discarding the liquid stream containing absorbed compounds as wastewater, the patent recovers it as a usable product. The liquid stream can be directly applied as fertilizer or further processed, converting what would be waste into a valuable resource
3Productivity
If gas stream treatment is performed without pretreatment, then subsequent processing efficiency decreases
Solution Approach 1:
The patent performs preliminary absorption of targeted compounds (such as ammonia) from the gas stream before it enters subsequent processing or wastewater treatment systems. This pretreatment action removes substances that would otherwise interfere with or overload downstream processes, improving their efficiency and reducing their operational burden
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
The process effectively reduces the load on subsequent processing systems, such as wastewater treatment facilities, by minimizing condensation and concentrating the absorbed compound, allowing for the production of valuable products like fertilizers and reducing wastewater discharge and operational costs.
Implementation Method 1
A method involving a gas/liquid contactor process that absorbs targeted compounds into a liquid scrubbing solution
Implementation Method 2
reducing condensation and concentrating the absorbed form of the compound
Data Source
AI summary
The present invention describes methods for absorbing a targeted chemical compound from a gas stream into a scrubbing solution for various uses and with various benefits. Methods are described to produce a gas stream that can be further processed with operational benefits, such as through condensing and wastewater treatment with a lower load on the wastewater treatment system. Methods are described for adsorbing the targeted compound with reduced condensation of water from the gas stream. Methods are described for producing a liquid stream comprising an absorbed form of the targeted compound for use as a saleable product, such as adsorbing ammonia for the production of a fertilizer, wherein the concentration of the absorbed form may be increased through reduced condensation from the gas stream. Methods are described for producing a lower volume liquid waste stream from the absorption process through the use of reduced condensation of the gas stream.