Parallel Reactor Sampling via Antechamber Pressure Equalization
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Solution Overview
Problem
There is a need for methods to sample reaction vessel contents in parallel reactor systems that can operate effectively when the contents are pressurized, as existing technologies are inadequate for handling pressurized conditions.
Innovation Solution
A method involving a sampling system with a sampling needle, pump, and valve that forms a fluid-tight seal in an antechamber, allowing material to be introduced from pressurized reaction vessels into a sampling slug, which is then discharged into a target substrate, maintaining an inert gas atmosphere and controlling pressure to prevent contamination and corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sampling system is designed to handle pressurized reaction vessels, then sampling capability under pressure is improved, but device complexity increases due to the need for antechambers, sealing members, and port valves
Solution Approach 1:
The system is divided into distinct functional segments: reaction vessels for pressurized reactions, antechambers as intermediate pressure-equalization zones, port valves for controlled access, and sampling systems for analysis. This segmentation allows each component to be optimized for its specific function while managing the overall complexity of pressurized sampling.
Solution Approach 2:
Antechambers serve as intermediary chambers between the pressurized reaction vessels and the atmospheric sampling system. These intermediate zones allow pressure equalization and provide a controlled transition environment, enabling safe sampling without direct exposure to high pressure while maintaining system integrity.
2Device complexity
If existing sampling technologies are used, then device simplicity is maintained, but they fail to function effectively when reaction vessel contents are pressurized
Solution Approach 1:
The system dynamically changes pressure parameters by equalizing pressure between reaction vessels and antechambers before sampling. This parameter control allows the system to transition from high-pressure reaction conditions to atmospheric sampling conditions, enabling effective sampling that existing technologies cannot achieve under pressurized conditions.
3Speed
If sampling is performed directly from pressurized vessels, then sampling speed is improved, but contamination and corrosion risks increase
Solution Approach 1:
Antechambers and port valves act as intermediary barriers between pressurized reaction vessels and the sampling system. These intermediaries enable rapid sampling by pre-equalizing pressure and providing controlled access points, while simultaneously protecting the sampling system from contamination and corrosion by isolating it from direct contact with pressurized reactants.
Solution Approach 2:
The system maintains inert atmospheres in antechambers and sampling lines to prevent contamination of samples and protect system components from corrosion. This inert environment is established and maintained throughout the sampling process, allowing fast sampling while eliminating harmful chemical interactions.
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
Enables precise and accurate sampling of pressurized reaction vessel contents, preventing contamination and corrosion, and allowing for small sample volumes, improving the accuracy and precision of sample dispensing while maintaining an inert atmosphere.
Implementation Method 1
The sampling needle is lowered into an antechamber to form a substantially fluid-tight seal between the antechamber sealing member and the sampling needle
Implementation Method 2
Material from the reaction vessel is introduced into the sampling needle to form a sampling slug
Implementation Method 3
The port valve is closed after the tip of the sampling needle is positioned in the antechamber
Implementation Method 4
enables precise and accurate sampling of pressurized reaction vessel contents, controlling pressure to prevent contamination and corrosion
Data Source
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AI summary
Methods for sampling reactor contents in parallel reactor systems are disclosed. The methods may be used to sample reactor contents in non-atmospheric (e.g., pressurized) reaction vessels.