Renewable Diesel-Biodiesel Fuel Detergents to Reduce Filter Blocking
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Solution Overview
Problem
The use of blends of renewable diesel and biodiesel in fuel compositions leads to increased filter blocking tendencies due to the formation of particulates, particularly during storage, which can cause engine starting issues and power loss, especially with modern fuel injection systems that operate at high temperatures and pressures.
Innovation Solution
Incorporating at least one nitrogen-containing detergent, such as quaternary ammonium salts or Mannich reaction products, into the fuel composition to reduce filter blocking by improving the flow characteristics and preventing particulate accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blends of renewable diesel and biodiesel are used to reduce emissions and improve engine performance, then environmental performance and engine efficiency are improved, but filter blocking tendency increases due to particulate formation during storage
Solution Approach 1:
A nitrogen-containing detergent acts as an intermediary substance that mediates between the biodiesel component and the filter. This detergent prevents direct contact between particulates and the filter surface, reducing filter blocking while allowing the beneficial engine performance effects of biodiesel blends to continue.
Solution Approach 2:
The invention changes the chemical parameter of the fuel composition by adding nitrogen-containing detergent compounds. This parameter change modifies the surface properties and flow characteristics of the fuel, preventing particulate accumulation on filters while maintaining the environmental and performance benefits of the biodiesel blend.
2Reliability
If fuel filter pore sizes are decreased to protect the injection system from particulates, then injection system protection is improved, but filter blocking occurs more readily during storage
Solution Approach 1:
The nitrogen-containing detergent performs preliminary anti-action by preventing particulate formation and accumulation before they can reach and block the filter. This proactive approach allows the use of finer pore size filters for injection system protection without suffering from increased filter blocking during storage.
Solution Approach 2:
The detergent serves as a protective intermediary between the fuel particulates and the filter medium. It creates a protective layer or chemical barrier that prevents direct adhesion of particulates to the filter surface, enabling finer pore sizes without compromising filter performance.
3Ease of operation
If nitrogen-containing detergents are added to reduce filter blocking, then filterability is improved, but fuel composition complexity increases
Solution Approach 1:
The invention introduces nitrogen-containing detergent compounds as a new parameter in the fuel composition. These compounds are specifically designed to modify the fuel's interaction with filters, improving filterability while the controlled addition of these parameters maintains overall composition manageability.
Solution Approach 2:
The fuel composition becomes a composite material system combining traditional fuel components with nitrogen-containing detergent additives. This composite approach leverages the specific properties of the detergent compounds to improve filterability while integrating them into the existing fuel matrix in a controlled manner.
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 addition of nitrogen-containing detergents significantly reduces the filter blocking tendency, enhancing fuel delivery to the engine and preventing engine shutdowns, as demonstrated by improved performance in filterability tests like the Canadian Cold Soak Filter Blocking Tendency test.
Implementation Method 1
The present invention relates to the use of at least one nitrogen-containing detergent to reduce the filter blocking tendency of a fuel composition
Data Source
AI summary
At least one nitrogen-containing detergent to reduce the filter blocking tendency of a fuel composition having a tendency to block filters. The fuel composition includes a renewable diesel component and a biodiesel component.