In-Situ Morpholine Generation for Corrosion Control in Boiler Systems
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Solution Overview
Problem
The challenge is to control corrosion in aqueous heat transfer systems without the need to handle morpholine directly, as it has come under pressure for safety handling reasons and its stability under use conditions is important to maintain effectiveness.
Innovation Solution
A method involving the addition of a morpholine generating agent to the aqueous heat transfer system, which undergoes partial decomposition to form morpholine in situ, thereby controlling corrosion without the need to handle morpholine as a raw material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If morpholine is added directly to the aqueous heat transfer system for corrosion control, then corrosion control effectiveness is improved, but safety handling difficulties worsen
Solution Approach 1:
The patent applies preliminary action by adding a morpholine generating agent (such as morpholine sulfate, morpholine carbonate, or morpholine carbamate) to the feed water before it enters the boiler system. The morpholine is generated in-situ through thermal decomposition of the generating agent at boiler temperatures, eliminating the need to handle pure morpholine directly. This preliminary preparation step resolves the contradiction by ensuring corrosion control effectiveness while improving safety handling.
2Reliability
If morpholine is used for corrosion control, then pH control and acid neutralization are improved, but volatility control worsens due to potential decomposition
Solution Approach 1:
The patent applies parameter changes by utilizing the temperature-dependent decomposition characteristics of morpholine generating agents. At feed water temperatures, the generating agents remain stable and do not decompose. When the water reaches boiler temperatures (typically above 150°C), the generating agents thermally decompose to release morpholine. This parameter-based control resolves the contradiction by ensuring stability during transport and effective pH control when needed in the boiler system.
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 approach allows for effective corrosion control in aqueous heat transfer systems by generating morpholine in situ, thus avoiding the safety concerns associated with handling morpholine and ensuring stability and effectiveness.
Implementation Method 1
forming morpholine in situ by partial decomposition of the morpholine generating agent in the aqueous heat transfer system
Data Source
AI summary
The present disclosure describes methods of controlling corrosion in aqueous heat transfer systems, such as boiler systems. methods add a morpholine generating agent to the aqueous heat transfer system. methods form morpholine in situ by the partial decomposition of the morpholine generating agent in the aqueous heat transfer system.