Membrane Gas Seperation: Difference between revisions
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**Gaseous Ammonia Purification | **Gaseous Ammonia Purification | ||
**Carbon Dioxide Scrubbing | **Carbon Dioxide Scrubbing | ||
**Removal of Water Vapor from Gas Streams (Membrane Dryer) | |||
*May require a [[Cascade]] approach, but can be more compact than other methods | *May require a [[Cascade]] approach, but can be more compact than other methods | ||
*Also can have a high throughput | *Also can have a high throughput | ||
Latest revision as of 02:29, 22 April 2020
Basics
- Seperation of various gasses via semi-permeable membranes
- Can be used for many applications, main OSE ones are:
- Air Seperation
- Hydrogen Purification
- Methane Purification
- Gaseous Ammonia Purification
- Carbon Dioxide Scrubbing
- Removal of Water Vapor from Gas Streams (Membrane Dryer)
- May require a Cascade approach, but can be more compact than other methods
- Also can have a high throughput
- Main challenge is membrane sourcing
Diffusion Rates Chart
- Need chart of the "Diffusion Constant ( D ) of various gasses
- Supposedly Fick's laws of diffusion is used for this? need maths person
Membrane Chart
- Somehow determine diffusion rates of various gasses through various materials (probably much existing research on this)
- Hydrogen diffuses easily through many materials, to the point it makes storage problematic, simple plastic sheeting in a cascade may work?