Marine Fuel Desulfurization Control System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional desulfurization systems for marine engines are complex and costly, requiring separate facilities and significant manpower, making them impractical for existing ships to effectively reduce sulfur oxide emissions from high-sulfur-content marine fuel oil.
Innovation Solution
A pretreatment desulfurization control and monitoring system that injects a desulfurization agent mixed with fuel before combustion, using sensors to monitor and control the process, including a fuel injection amount sensor, RPM sensor, gas sensor, and water level sensor, with a control panel for real-time monitoring and automatic agent replenishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional post-treatment wet desulfurization system is used, then sulfur oxide removal capability is maintained, but device complexity and installation cost increase significantly
Solution Approach 1:
The invention applies preliminary action by mixing the desulfurization agent with the fuel before combustion occurs in the engine. This pre-treatment approach prevents sulfur oxides from being generated in the first place, rather than treating them after combustion. The agent is injected into the fuel supply line and mixed thoroughly before the fuel reaches the engine, enabling desulfurization to occur during the fuel preparation stage rather than requiring complex post-combustion treatment systems.
Solution Approach 2:
The invention extracts the desulfurization function from the complex post-treatment system and integrates it directly into the fuel supply system. By removing sulfur compounds from the fuel before combustion through chemical reaction with the desulfurization agent, the system eliminates the need for separate scrubbers, washing water systems, and sludge treatment facilities that characterize conventional wet desulfurization systems.
2Object-generated harmful factors
If conventional wet desulfurization system with purification process is implemented, then sulfur oxide emissions are reduced, but loss of substance increases due to sludge generation
Solution Approach 1:
The invention converts the harmful sulfur compounds in the fuel into beneficial products through chemical reaction with the desulfurization agent. The sulfur compounds react to form solid particles that can be easily removed from the fuel supply system, transforming the problematic sulfur content into a manageable byproduct rather than generating large amounts of sludge through water-based purification processes.
3Object-generated harmful factors
If conventional desulfurization system is installed on existing ships, then sulfur oxide removal is achieved, but ease of operation deteriorates due to manpower requirements
Solution Approach 1:
The invention implements self-service by designing an automatic injection system that controls the desulfurization agent dosage based on fuel consumption. The system uses sensors to monitor fuel flow and automatically adjusts the agent injection rate, eliminating the need for manual intervention in dosing calculations and adjustments. The mixed ratio is maintained automatically through the injection pump control system, allowing the system to operate autonomously without requiring specialized operator knowledge or continuous monitoring.
4Reliability
If separate desulfurization facility is constructed, then sulfur oxide removal capability is improved, but ease of manufacture worsens due to installation complexity
Solution Approach 1:
The invention merges the desulfurization function with the existing fuel supply system by integrating the agent injection point into the fuel line. Rather than constructing a separate desulfurization facility, the system combines multiple functions (fuel delivery and desulfurization) into a single integrated process. The injection pump and mixing mechanism are installed within the existing fuel supply infrastructure, eliminating the need for separate buildings, piping systems, and equipment installations required by conventional wet desulfurization systems.
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 system effectively reduces sulfur oxide emissions in real-time, simplifying installation and operation, allowing for easy application to existing ships without additional desulfurization facilities, and improving desulfurization efficiency.
Implementation Method 1
a pretreatment desulfurization method of mixing a combustible material and a pretreatment desulfurization agent and burning the mixture
Implementation Method 2
a fuel injection amount sensor installed on a fuel supply line connected between a fuel tank and a marine engine and configured to detect an injection amount of fuel
Data Source
AI summary
The present invention includes a fuel injection amount sensor for detecting an injection amount of oil, a pretreatment desulfurization agent injection amount sensor for detecting an injection amount of a pretreatment desulfurization agent, and a control panel for controlling and monitoring the injection amount of the pretreatment desulfurization agent so that the predetermined desulfurization agent is mixed with the fuel in a predetermined mixing ratio. The fuel injection amount sensor is disposed on a fuel supply line between a fuel tank and a marine engine, and the pretreatment desulfurization agent injection amount sensor is disposed between a downstream fuel supply line installed downstream of the fuel injection amount sensor and a pretreatment desulfurization agent tank.