Fuel Additive Reducing Soot Formation via Iron Oxide and Nitrates
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Solution Overview
Problem
Existing fuel additives for solid fuel combustion often contain harmful substances like chlorine compounds, copper, and sulfur, leading to environmental pollution, excessive corrosion, and health risks due to increased emissions of toxic pollutants and reduced combustion efficiency.
Innovation Solution
A solid fuel additive composed of 30-60% triiron tetroxide (Fe3O4), 10-30% nitrates (such as potassium nitrate), 5-30% sodium percarbonate, and 10% anti-caking agents like powdered burnt clay, which reduces soot production and enhances combustion efficiency while being environmentally friendly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fuel additives contain chlorine compounds and copper, then combustion effectiveness is improved, but environmental pollution and toxic emissions increase
Solution Approach 1:
The invention changes the chemical composition parameters of the fuel additive by replacing harmful chlorine and copper compounds with environmentally friendly iron oxide and nitrate compounds, maintaining combustion effectiveness while eliminating toxic emissions
Solution Approach 2:
The invention extracts and removes harmful substances (chlorine compounds, copper) from the fuel additive composition, retaining only the essential catalytic components that promote combustion without environmental damage
2Productivity
If fuel additives contain chloride and sulphur compounds, then combustion efficiency is enhanced, but corrosion of boiler components increases
Solution Approach 1:
The invention changes the chemical composition by substituting corrosive chloride and sulphur compounds with non-corrosive iron oxide and nitrate compounds, maintaining combustion efficiency while protecting boiler components from corrosion
3Object-affected harmful factors
If fuel additives use iron oxide, then environmental safety is improved, but combustion effectiveness may be reduced
Solution Approach 1:
The invention creates a composite fuel additive material combining iron oxide with nitrate compounds and other auxiliary substances, where the synergistic interaction of components enhances combustion effectiveness while maintaining environmental safety
Solution Approach 2:
The invention optimizes the particle size, concentration, and physical-chemical parameters of iron oxide to maximize its catalytic activity for combustion while maintaining environmental compatibility
4Stability of the object's composition
If active ingredients are diluted with SiO2 or Al2O3, then additive stability is improved, but transport of catalytic components to boiler walls is hindered
Solution Approach 1:
The invention changes the physical parameters of the additive by using fine particle sizes and optimizing the ratio of active ingredients to extenders, ensuring both stability and effective transport of catalytic components to combustion zones
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 additive significantly decreases carbon black production, making it less toxic and more biodegradable, improving combustion efficiency, reducing chimney heat losses, and lowering emissions of nitrogen oxides, with carbon black produced being less harmful and easier to remove from heat exchangers.
Implementation Method 1
The soot combustion catalysts containing copper sulphate, sodium chloride and ammonium chloride are known from PL 207482 and PL 165406 patent description
Implementation Method 2
The fuel additive is decomposable in 485°C, forming a coating on the heat exchanger surface
Implementation Method 3
The fuel additive revealed in this invention decreases the fuel ignition temperature by 3-15°C, enhancing the combustion effectiveness
Implementation Method 4
making it less toxic and more biodegradable, improving combustion efficiency
Data Source
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AI summary
The invention concerns the ecological fuel additive, composed of triferric tetroxide, nitrates containing 30-60% in weight of triiron tetroxide (Fe3O4), 10-30% in weight of potassium nitrate(V) (KNO3), sodium nitrate (V) (NaNO3), ammonium nitrate(V) (NH4NO3), or mixture of the abovementioned nitrates(V), 5-30% in weight of sodium percarbonate (Na2CO3⋅1.5H2O2) and 10% in weight of anti-caking agent. Advantageously, the anti-caking agent is powdered burnt clay and Fe3O4 used for production of fuel additive is free from FeSO4. The solid fuel additive according to the invention is ecological thanks to this that the production of carbon black and toxic compounds present in carbon black is reduced.