Replaceable Adsorption Units for Nitrous Oxide Collection
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Solution Overview
Problem
Current systems for handling nitrous oxide in smaller healthcare settings, such as ambulances and private clinics, are not cost-effective or convenient due to their complexity and high operational costs, particularly when dealing with higher nitrous oxide levels during short treatments.
Innovation Solution
A system comprising a pool of mutually replaceable nitrous oxide adsorption units with docking arrangements for connecting to face masks and processing apparatus, equipped with sensors and a logging system to monitor and manage nitrous oxide collection and processing efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a common waste gas handling system is used for multiple rooms/patients, then nitrous oxide can be handled at larger health care units, but the system becomes complex and expensive for smaller units and minor treatments
Solution Approach 1:
The patent divides the waste gas handling system into separate, independent units - each room or treatment area has its own waste gas handling apparatus rather than sharing a common system. This segmentation allows smaller units to handle nitrous oxide effectively without requiring complex centralized infrastructure
Solution Approach 2:
The patent introduces an intermediary substance (absorbent material) that mediates between the nitrous oxide waste gas and the environment. The absorbent material captures nitrous oxide in a controlled manner, simplifying the overall system design by replacing complex catalytic or combustion systems with straightforward absorption technology
2Object-affected harmful factors
If exhalation air is diluted with ambient air before treatment, then nitrous oxide levels are reduced, but the volume of air to be treated increases significantly
Solution Approach 1:
The patent extracts nitrous oxide from exhalation air using absorbent material before the air is discharged or recirculated. This extraction approach removes the harmful substance directly without requiring dilution, thus avoiding the problem of increased air volume that would result from adding ambient air
3Object-generated harmful factors
If catalytic decomposition is used for nitrous oxide removal, then nitrous oxide can be broken down, but the system requires significant energy input and is costly to operate
Solution Approach 1:
The patent converts the harmful nitrous oxide into beneficial substances (nitrogen and oxygen) through absorption and subsequent decomposition of the absorbent material. This approach eliminates the need for high-energy catalytic decomposition systems while achieving the same beneficial outcome of converting nitrous oxide into harmless gases
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 system provides a cost-effective and convenient method for collecting and processing nitrous oxide, ensuring environmentally friendly disposal and efficient energy use, while supporting multiple treatments with minimal waste and high adsorbent regeneration capacity.
Implementation Method 1
A) an adsorption unit comprising a chamber containing an adsorbent material for adsorbing nitrous oxide from a gas stream which contains exhaled air
Implementation Method 2
B) a compression unit arranged downstream of the adsorption unit and adapted for compressing the nitrous oxide which is adsorbed in the adsorption unit
Implementation Method 3
C) a condensation unit arranged downstream of the compression unit and adapted for condensing the compressed nitrous oxide
Data Source
Figure 1~2b
Figure 3
Figure 4
AI summary
A system for collecting nitrous oxide in exhalation air and subsequently delivering the nitrous oxide to further processing which comprises a number of mutually replaceable adsorption units (201). Every unit has a nitrous oxide reversible adsorbent (213a) and: i) an inlet port (214a) and an outlet port (214b) for exhalation air, ii) an inlet port (215a) and an outlet port (215b) for desorbing gas, together with A) a docking arrangement (202) which is associated with adsorption of nitrous oxide and used for connecting a face mask (204) to the inlet port (214a), and B) a docking arrangement (203) which is associated with desorption of nitrous oxide and used for connecting the outlet port (215b) to further processing of nitrous oxide. Another aspect is an adsorption unit (201,301,401) unit as defined in the preceding paragraph which is capable of being regenerated by passing a desorbing gas through the adsorbent.