Method and heating system for heating, in particular a building
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Solution Overview
Problem
Existing methods for using hydrogen peroxide as a long-term energy store for heating, such as those described in DE 37 27 630 C1, face issues with undesirable reactions and slow decomposition rates, necessitating frequent catalyst replacement or large reactor dimensions, which compromises efficiency and cost-effectiveness.
Innovation Solution
The use of manganese hydroxide as a freely movable catalyst in the heating water, combined with controlled decomposition and mixing, accelerates hydrogen peroxide decomposition while maintaining catalyst stability, allowing efficient and long-term energy storage and release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional catalysts (manganese dioxide or precious metals) are used in the decomposition reactor, then hydrogen peroxide decomposition can be accelerated, but undesirable reactions occur at the catalyst and decomposition rate is too slow, requiring frequent catalyst replacement or very large reactor dimensions
Solution Approach 1:
The patent changes the chemical composition parameter of the catalyst from conventional manganese dioxide or precious metals to manganese hydroxide (Mn(OH)2). This parameter change resolves the contradiction by providing a catalyst that maintains stability while achieving adequate decomposition rates, eliminating the need for frequent replacement or oversized reactors.
Solution Approach 2:
The patent employs manganese hydroxide as a composite catalyst material that combines the benefits of high decomposition activity with long-term stability. This composite material approach allows the catalyst to resist degradation and unwanted reactions while maintaining effective hydrogen peroxide decomposition.
2Productivity
If the reactor is dimensioned very large to ensure appropriate decomposition rate with conventional catalysts, then sufficient thermal energy can be released, but device complexity and cost increase
Solution Approach 1:
By changing the catalyst material parameter to manganese hydroxide, the patent achieves the required thermal energy release in a compact reactor size. The improved catalytic efficiency per unit volume allows significant reduction in reactor dimensions while maintaining adequate heat generation for heating applications.
3Productivity
If conventional catalysts are used, then some decomposition acceleration is achieved, but frequent catalyst replacement is necessary, increasing operational complexity and cost
Solution Approach 1:
The patent extends catalyst service life by changing the material composition to manganese hydroxide, which demonstrates superior resistance to degradation and deactivation. This single parameter change simultaneously maintains decomposition rate while extending operational duration from frequent replacement cycles to long-term stable operation.
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 enables fast and efficient hydrogen peroxide decomposition, maintaining catalyst integrity and reducing the need for frequent replacement, thus providing a cost-effective and reliable heating solution using renewable energy.
Implementation Method 1
the heating system heats heating water located in the heating chamber, which contains the hydrogen peroxide solution supplied from the storage unit, by catalytic exothermic decomposition of the hydrogen peroxide contained in the heating water with release of heat to the heating water
Implementation Method 2
catalytic exothermic decomposition of the hydrogen peroxide contained in the heating water with release of heat to the heating water
Data Source
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AI summary
The invention relates to a method and a heating system for heating, in particular a building, with energy that is previously stored in the form of hydrogen peroxide (H2O2) as a long-term chemical energy store. The heating system has a generation unit that generates the hydrogen peroxide from at least water and by means of supplied energy and provides it in an aqueous hydrogen peroxide solution containing water and the hydrogen peroxide dissolved in the water. The heating system also has a storage unit in which the heating system stores the provided hydrogen peroxide solution. The heating system feeds the hydrogen peroxide solution stored in the storage unit into a heating chamber of the heating system and heats the heating water by catalytic exothermic decomposition of the hydrogen peroxide contained in the heating water, releasing heat to the heating water.According to the invention, the heating water in the heating chamber contains manganese hydroxide (Mn(OH)2) which is freely movable in the heating water, in particular which can be swirled up in the heating water, and which accelerates the decomposition of the hydrogen peroxide.