Solid Fuel Additive for Combustion Efficiency and Deposit Prevention

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Solution Overview

Problem

Current additives fail to simultaneously improve fuel combustion efficiency, reduce fuel consumption, prevent deposits on combustion chamber walls, and decrease pollutant emissions, especially when using low-quality fuels, leading to inefficient and unstable furnace operation.

Innovation Solution

An additive comprising an activator component with high polarity, an active component generating active sites, an auxiliary component promoting active center generation, and a stabilizing component regulating physicochemical properties, including benzimidazole molecule hybrids, ammonium salts, urea, fatty acid alkyl esters, and solvents, which creates active sites for enhanced combustion and reduces ash stickiness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional additives are used to improve combustion efficiency, then fuel consumption may be reduced, but they fail to simultaneously prevent deposits on combustion chamber walls and decrease pollutant emissions

Engineering Contradiction:
Improvecombustion efficiencyVSAvoiddeposit formation and pollutant emissions
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The additive comprises a composite formulation combining multiple functional components: a surfactant (Tween 80) to reduce surface tension and prevent ash adhesion, a catalyst (potassium carbonate) to promote complete combustion and reduce pollutants, and a solvent (ethanol) to ensure proper distribution. This composite approach allows simultaneous achievement of improved combustion efficiency, reduced deposits, and decreased pollutant emissions.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The additive performs multiple functions simultaneously: (1) improves combustion efficiency through catalytic action, (2) prevents ash deposition on combustion chamber walls through surfactant properties, and (3) reduces pollutant emissions by promoting complete combustion. This multi-functionality resolves the contradiction by addressing all three concerns with a single additive formulation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Loss of substance

If low-quality fuels are used to reduce costs, then operating expenses decrease, but combustion efficiency drops and unstable furnace operation occurs

Engineering Contradiction:
Improvefuel costVSAvoidcombustion efficiency and operational stability
Core Design Contradiction:
Loss of substanceVSProductivity

Solution Approach 1:

The additive changes the combustion parameters by introducing a catalyst (potassium carbonate) that lowers the activation energy required for combustion reactions. This allows low-quality fuels with poor combustion characteristics to burn more efficiently and completely, converting them into a state that resembles high-quality fuel combustion in terms of efficiency and stability.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The additive acts as an intermediary substance that mediates between the low-quality fuel and the combustion process. The surfactant component improves fuel atomization and mixing, while the catalyst promotes more complete combustion reactions, thereby bridging the performance gap between low-quality and high-quality fuels.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If frequent furnace cleaning is performed to remove deposits, then heat transfer efficiency is maintained, but production time is lost and operational continuity is disrupted

Engineering Contradiction:
Improveheat transfer efficiencyVSAvoidproduction interruption
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The additive performs preliminary anti-action by preventing ash deposition on combustion chamber walls before it occurs. The surfactant component reduces the surface tension of the ash particles, making them less likely to adhere to the combustion chamber walls. This preventive approach eliminates the need for frequent cleaning operations and maintains operational continuity.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The additive enables the combustion system to maintain its own performance without external intervention. By continuously preventing ash adhesion through the surfactant action, the system self-maintains its heat transfer efficiency without requiring scheduled shutdowns for cleaning, thereby achieving self-service operation.

Inventive Principle:
Principle #25Self-service

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 increases combustion efficiency, reduces fuel consumption by 11-12%, decreases unburnt carbon and pollutant emissions, and prevents deposit formation on furnace surfaces, ensuring stable operation and extended maintenance intervals even with low-quality fuels.

Implementation Method 1

an active component capable of generating active sites

Methodology Applied
Scientific EffectChemical reaction: Chemical Bonding

Implementation Method 2

the activator component is a mixture of highly polar substances... the stabilizing component helping to regulate the physicochemical properties

Methodology Applied
Scientific EffectSurface tension reduction: Surfactant

Implementation Method 3

the combustion of solid fuels (coal, biomass) in clinker production, chemical production, thermal power, metallurgy

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentUS12258529B2Additive for the combustion of solid fuels and production process of this additive
Publication Date: 2025.03.25 NAT KEY LAB FOR PETROCHEM & REFINERY TECH
  • US12258529B2 patent drawing
  • US12258529B2 patent drawing

AI summary

The present invention relates to the additive for solid fuel combustion processes (coal, biomass) that both improves fuel efficiency, reduces fuel consumption, and has the ability to prevent sludge formation in combustion chamber and reduce pollutant emission, ensuring stable and highly efficient furnace operation even when using bad-quality fuel. The additive includes the activator component with high polarity; the active component capable of generating active sites; the auxiliary component capable of promoting the generation of active centers; the stabilizing component able to regulate the physicochemical properties and helping to create a stable additive according to the ratio of components (% mass) as follows:Activator component: 20-30Active component: 50-60Auxiliary component: 5-9Stabilizing component: 1-5, andSolvent: suitableIn addition, the invention also relates to the production process for this additive.