Hydrogencarbonate Production Using Dual Exhaust Gas pH Control
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Solution Overview
Problem
Existing methods struggle to efficiently produce hydrogencarbonate due to pH fluctuations in the reaction solution, leading to either excessive carbonate production or reduced hydrogencarbonate formation, depending on the pH level.
Innovation Solution
A hydrogencarbonate producing system that includes a removing device to eliminate acidic substances, a hydrogencarbonate producing device, and a pH sensor to control the introduction of exhaust gases, maintaining the reaction solution's pH within a target range using a controller to adjust the ratio of untreated and treated exhaust gases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pH of the reaction solution is increased to promote hydrogencarbonate production, then hydrogencarbonate formation is improved, but carbonate is more likely to be produced instead
Solution Approach 1:
The system continuously monitors the pH of the reaction solution using a pH sensor and adjusts the introduction amounts of first and second exhaust gases based on the detected pH value. This closed-loop feedback control ensures the pH is maintained within the target range (6.5-10.5), optimizing hydrogencarbonate production while preventing carbonate formation.
Solution Approach 2:
The system dynamically adjusts the pH parameter of the reaction solution by controlling the introduction amounts of exhaust gases with different characteristics (first exhaust gas containing acidic substances and CO2, second exhaust gas with acidic substances removed). This parameter control enables precise regulation of the chemical reaction to favor hydrogencarbonate production.
2Manufacturing precision
If the pH of the reaction solution is decreased to prevent carbonate production, then product composition is improved, but hydrogencarbonate production efficiency is reduced
Solution Approach 1:
The pH sensor continuously monitors the reaction solution pH and provides feedback to the controller, which adjusts exhaust gas introduction amounts to maintain pH within the optimal range (6.5-10.5). This prevents the pH from dropping too low, thereby maintaining high hydrogencarbonate production efficiency while ensuring product composition control.
Solution Approach 2:
The system dynamically adjusts the introduction amounts of first and second exhaust gases based on real-time pH measurements. This dynamic control allows the system to adapt to changing conditions and maintain optimal pH levels for hydrogencarbonate production, preventing both excessive alkalinity and acidity.
3Manufacturing precision
If acidic substances are removed from exhaust gas before reaction, then product purity is improved, but CO2 availability for hydrogencarbonate production is reduced
Solution Approach 1:
The exhaust gas treatment is segmented into two separate streams: first exhaust gas that retains acidic substances and CO2, and second exhaust gas from which acidic substances have been removed. Both streams are introduced into the hydrogencarbonate producing device in controlled amounts, allowing the system to utilize CO2 from both sources while managing the impact of acidic substances through pH control.
Solution Approach 2:
The hydrogencarbonate producing device serves multiple functions by receiving both treated and untreated exhaust gases. It simultaneously utilizes CO2 from both streams for hydrogencarbonate production while the pH control system manages the presence of acidic substances, effectively handling diverse gas compositions through a single integrated process.
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 system effectively maintains the reaction solution's pH within an optimal range, ensuring efficient production of hydrogencarbonate by balancing the introduction of untreated and treated exhaust gases, thereby enhancing production efficiency.
Implementation Method 1
a pH sensor that detects pH of the reaction solution
Implementation Method 2
a removing device that removes acidic substances in a first exhaust gas to produce second exhaust gas
Implementation Method 3
a hydrogencarbonate producing device that reacts carbon dioxide in at least one of the first exhaust gas and the second exhaust gas with an alkaline earth compound in a reaction solution to produce hydrogencarbonate
Data Source
AI summary
A hydrogencarbonate generation system according to the present disclosure includes a removing device that removes acidic substances in a first exhaust gas to generate a second exhaust gas, a hydrogencarbonate producing device that reacts carbon dioxide in at least one of the first exhaust gas and the second exhaust gas with an alkaline earth compound in a reaction solution to produce hydrogencarbonate, and a pH sensor that detects the pH of the reaction solution. An introduction amount of the first exhaust gas and an introduction amount of the second exhaust gas that are to be introduced into the hydrogencarbonate producing device are controlled to maintain the pH of the reaction solution detected by the pH sensor within a predetermined target pH range.