【Daily Question】Chemical Engineering Principles 340: Electrolyte Concentration (March 16)
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This post was last edited by Zaihui Kangqiao on 2016-3-21 at 15:13. The Chemical Engineering Theory section is now launching a \"One Question per Day\" activity to help everyone reinforce their basic knowledge in chemical engineering. Subsequent series such as \"Principles of Chemical Engineering\", \"Mass Transfer and Separation\", \"Thermodynamics in Chemical Engineering\", and \"Chemical Process Engineering\" will also be introduced. We hope for your active support! Wishing everyone a happy Christmas! Answers to the questions in the \"One Question per Day\" activity can be viewed directly, and the thread will be closed after 1 day ! To encourage continued participation from everyone this year! Participation earns 3 wealth points, with an additional 4 wealth points for correct answers~~~ Short answer question: In the production of hydrogen through water electrolysis, what are the effects of too high and too low electrolyte concentrations? Answer: An excessively high concentration of electrolyte increases power consumption and causes corrosion to the asbestos membrane; when it is too concentrated, crystals may precipitate, blocking the liquid and gas pathways and preventing the electrolyzer from operating properly. When the concentration of the electrolyte is too low, such as when the KOH concentration is below 20%, it increases power consumption, weakens the passivity of the metal, reduces gas purity, and accelerates equipment corrosion.
If the concentration is too high, it is no longer water electrolysis
An excessively high concentration of electrolyte increases power consumption and causes corrosion of the asbestos membrane; it may also lead to the formation of crystals that block the liquid and gas channels, preventing the electrolyzer from functioning properly. Too low an electrolyte concentration increases power consumption, weakens the passivity of the metal, reduces gas purity, and increases equipment corrosion.
A high temperature of the electrolyte causes the gases emitted to carry away large amounts of alkali and water vapor, thereby **increasing** corrosion of the equipment. If the electrolyte temperature is too low, it affects the circulation rate of the electrolyte, making it difficult to increase the current level, reducing the amount of gas produced, and increasing power consumption.
A high temperature of the electrolyte causes the gases emitted to carry away large amounts of alkali solution and water vapor, thereby **increasing** corrosion of the equipment； If the temperature of the electrolyte is too low, it affects the circulation rate of the electrolyte; it becomes difficult to increase the current, gas production decreases, and electricity consumption rises.
An excessively high concentration of the electrolyte increases power consumption and causes corrosion of the asbestos membrane; when it is too concentrated, crystals may precipitate, blocking the liquid and gas channels and preventing the electrolyzer from operating properly. When the concentration of the electrolyte is too low, such as when KOH is below 20%, it increases power consumption, weakens the passivity of the metal, reduces gas purity, and accelerates equipment corrosion.
In the production of hydrogen through water electrolysis, what are the effects of too high and too low electrolyte concentrations? Answer: Too high an electrolyte concentration increases power consumption and causes corrosion to the asbestos membrane; when it is too concentrated, crystals may form and block the pipes, preventing the electrolyzer from functioning properly. Too low an electrolyte concentration increases power consumption, reduces the purity of the metal, lowers the purity of the gas, and accelerates equipment corrosion.
A high temperature of the electrolyte causes the gases emitted to carry away large amounts of alkali solution and water vapor, thereby **increasing** corrosion of the equipment； If the temperature of the electrolyte is too low, it affects the circulation rate of the electrolyte; it is difficult to increase the current, gas production decreases, and energy consumption rises
An excessively high concentration of the electrolyte increases power consumption and causes corrosion of the asbestos membrane; when it is too concentrated, crystals may precipitate, blocking the liquid and gas channels and preventing the electrolyzer from operating properly. When the concentration of the electrolyte is too low, such as when the KOH concentration is below 20%, it increases power consumption, weakens the passivity of the metal, reduces gas purity, and accelerates equipment corrosion
When producing hydrogen through water electrolysis, what are the effects of too high and too low electrolyte concentrations? A high temperature of the electrolyte causes the gases emitted to carry away large amounts of alkali solution and water vapor, thereby **increasing** corrosion of the equipment ； If the temperature of the electrolyte is too low, it affects the circulation rate of the electrolyte; it becomes difficult to increase the current, gas production decreases, and electricity consumption rises.