Fischer-Tropsch Fuel Silicon Reduction

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Solution Overview

Problem

Fuel compositions containing silicon-based additives can degrade catalyst efficiency in catalytically driven systems and impair fuel atomization and combustion in diesel engines, leading to reduced engine performance and efficiency.

Innovation Solution

A Fischer-Tropsch derived fuel is used to reduce silicon levels in fuel compositions, replacing silicon-containing antifoaming additives and maintaining or improving antifoaming properties, thereby minimizing catalyst degradation and silicon deposits in fuel combustion systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If silicon-based additives are included in fuel compositions to enhance performance, then fuel properties are improved, but catalyst efficiency degrades and silicon deposits accumulate

Engineering Contradiction:
Improvefuel performanceVSAvoidcatalyst degradation
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and removes silicon-based additives from the fuel composition to eliminate the harmful effect of catalyst degradation and silicon deposit accumulation, while maintaining fuel performance through alternative additive formulations that are catalyst-compatible

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces intermediary substances (alternative additives without silicon) that mediate between the need for fuel performance enhancement and the requirement to protect catalyst systems, providing the benefits of additive inclusion without the harmful silicon content

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If silicon-containing additives are used in fuel, then fuel composition is stabilized, but fuel atomization and combustion performance are impaired

Engineering Contradiction:
Improvefuel composition stabilityVSAvoidcombustion efficiency
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The patent changes the chemical composition parameters by replacing silicon-containing compounds with alternative additives that provide composition stability without interfering with fuel atomization and combustion processes, thereby resolving the contradiction between stability and combustion efficiency

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS7737311B2Fuel compositions
Publication Date: 2010.06.15 SHELL USA INC

AI summary

Use of a Fischer-Tropsch derived fuel in a fuel composition is disclosed, for the purpose of reducing catalyst degradation in a catalytically driven or catalyst containing system which is running on, or is to be run on, the composition or its products, wherein the Fischer-Tropsch derived fuel is used to reduce the level of silicon in the fuel composition, such as by reducing the concentration of silicon-containing antifoaming additive(s) in the fuel composition. It may also be used to reduce loss of efficiency of fuel atomization and/or combustion, and/or to reduce build up of silicon deposits, in a fuel consuming system which is running on, or is to be run on, the fuel composition.