Palladium Catalyst Coating for Hydrogen Peroxide Production Efficiency
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Solution Overview
Problem
Existing methods for producing hydrogen peroxide, such as the anthraquinone process, are inefficient in terms of capital investment, energy usage, and solvent release, and there is room for improvement in production efficiency.
Innovation Solution
A palladium-containing composition comprising palladium particles coated with a compound having an O═X structure, where X is a phosphorus, sulfur, or carbon atom, is used as a catalyst in a direct production method where hydrogen reacts with oxygen to produce hydrogen peroxide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a precious metal colloidal solution is used in a direct production method where hydrogen reacts with oxygen, then hydrogen peroxide can be produced, but there is room for improvement in production efficiency
Solution Approach 1:
A coating agent comprising a compound with an O═X structure (where X is phosphorus, sulfur, or carbon) is introduced as an intermediary substance that coats the surface of palladium particles. This coating layer mediates between the palladium catalyst and the reaction environment, suppressing direct contact between palladium particles and hydrogen peroxide while maintaining catalytic activity for hydrogen-oxygen reaction.
Solution Approach 2:
The patent converts the harmful effect of palladium-catalyzed hydrogen peroxide decomposition into a beneficial outcome by using the coating agent to selectively prevent decomposition while preserving the desired catalytic reaction. The coating transforms the potentially harmful interaction into a controlled process that enhances production efficiency.
2Productivity
If the anthraquinone process is used for hydrogen peroxide production, then hydrogen peroxide can be produced, but capital investment and energy usage are high
Solution Approach 1:
The patent extracts and eliminates the complex multi-stage anthraquinone process steps (hydrogenation, air oxidation, extraction, purification, concentration) and replaces them with a simplified direct synthesis approach using coated palladium particles, thereby reducing energy consumption and process complexity.
Solution Approach 2:
The patent changes the fundamental reaction parameters from indirect multi-step anthraquinone methodology to direct hydrogen-oxygen reaction on coated palladium surface, altering the reaction pathway to achieve lower energy consumption and simpler operation.
3Productivity
If the anthraquinone process is used for hydrogen peroxide production, then hydrogen peroxide can be produced, but organic solvent is released into the air
Solution Approach 1:
The patent removes the organic solvent extraction step entirely from the production process by using direct synthesis on coated palladium particles, eliminating the source of organic solvent release into the air while maintaining hydrogen peroxide production capability.
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 use of the palladium-containing composition as a catalyst allows for the production of hydrogen peroxide with high efficiency by minimizing the contact between palladium particles and hydrogen peroxide, thereby suppressing decomposition and enhancing production rates.
Implementation Method 1
a coating agent that coats the surface of the palladium particles
Implementation Method 2
palladium particles can be converted to be hydrophobic due to the O═X structure of a coating agent
Implementation Method 3
the palladium-containing composition is used as a catalyst, for example, in a direct production method of hydrogen peroxide
Data Source
AI summary
It is desired to develop a method of producing hydrogen peroxide, which is capable of producing hydrogen peroxide with high production efficiency. According to the present invention, provided is a palladium-containing composition comprising palladium particles and a coating agent that coats the surface of the palladium particles, wherein a compound having an O═X structure (wherein X represents any of a phosphorus atom, a sulfur atom, and a carbon atom) is comprised as the coating agent.