Oxygen generation for medical use using electrolysis or water fracturing.

[Paul-R]

 

	With the mess India is in now thanks to the Coronavirus, mismanagement, a lack of ICU facilities and oxygen, I am wondering what can be suggested for a simple piece of kit to generate of the order of 10 litres per minute of oxygen. I checked out Patrick's Chapter 10, but being geared to cars, it is mainly projects generating hydroxy gas, which is not readly separatable. What do people suggest?

[stivep]

 I was in this field  20  years ago and I'm trying to  recall 
some simple methods - not asking for a lot of money.
http://www.madehow.com/Volume-4/Oxygen.html#:~:text=Oxygen%20can%20be%20produced%20from%20a%20number%20of,oxygen%20in%20the%20air%20back%20into%20carbon%20dioxide.

the picture below   is not closely related to  the link from  above
Wesley

[stivep]

 here is another method  but it  needs   energy..
in first    you may look at  unimportant to  hydrogen  production wasted  oxygen .
in second picture  you have   Water electrolysis
https://engineered.thyssenkrupp.com/en/green-hydrogen/

think of it   as:
many  industrial big  technologies  can  work as small portable one .
Before big farm was big  it was small.


Wesley

[lancaIV]

We see here that indian scientists and inventors are in search for -cheap and available- oxygen generator/concentrator solutions since 2020 ( by medical grade quality ! ):


https://www.google.com/search?q=low+cost+oxygen+generator&ei=plGEYPmeLYaSlwTJmJmgBA&oq=low+cost+oxygen+generator&gs_lcp=Cgdnd3Mtd2l6EAwyBAgAEBM6BwgAEEcQsAM6BwgAELADEEM6BggAEAcQHjoICAAQCBAHEB46CAgAEAgQDRAeOggIABAHEB4QE1Ci3QRYzfIEYPmCBWgBcAJ4AIABtAGIAYgHkgEDOS4xmAEAoAEBqgEHZ3dzLXdpesgBCsABAQ&sclient=gws-wiz&ved=0ahUKEwj5iZq3sJfwAhUGyYUKHUlMBkQQ4dUDCA4


https://indianexpress.com/article/north-east-india/tripura/tripura-goldsmith-builds-low-cost-oxygen-concentrator-to-help-covid-patients-7073896/

This was when her family learnt that an oxygen concentrator costs Rs 65,000. And renting an oxygen cylinder wasn't cheap either; it was Rs 1,500 per day.

https://www.thebetterindia.com/223536/iisc-scientist-india-covid-19-coronavirus-pandemic-oxygen-generator-ventilator-medical-device/

"There are oxygen generators available in the market, but each unit costs anywhere from Rs 40,000 to Rs 1 Lakh. I realised that by using readily available materials, we can make it at a fraction of the cost," Prof. Praveen Ramamurthy, one of the team members, tells The Better India (TBI). Their device costs less than Rs 10,000.


https://www.deccanherald.com/city/bengaluru-infrastructure/this-low-cost-oxygen-generator-could-help-save-covid-19-patients-in-rural-areas-828330.html


"This unit, which uses locally sourced items, can also supply 10 litres per minute. It will cost between Rs 10,000 to Rs 20,000. This includes all electronics, low-cost compressors and zeolite available in abundance. The plan is to transfer the open source design, free of cost, to manufacturers," Dr Ramamurthy said.



125 US$- 250 US$/10 000 - 20 000 Rupies per unit   ,   lease/renting option ?!






But not a new global problem, soon before Corona-Pandemia :


https://www.unicef.org/innovation/oxygen-concentrators


Every year, 4.2 million children suffering from severe pneumonia in low and middle-income countries urgently need oxygen to survive.


Adults with pneumonia global,with "medical" oxygen need ?




#02 : this used "(Parker Whatman) Balson 75-31 Hydrogen generator " is with 2021 production condition as new model(l) and by same output never to get under 1500 US$ fob factory !


                                                  model(l)  75-31/ 75-32 ?
http://www.triadscientific.com/en/products/nitrogen-generators-hydrogen-generators-zero-air/2673/parker-balston-whatman-hydrogen-generator-75-32/248648




Euphoria/Hysteria : https://translate.google.com/translate?sl=de&tl=en&u=https://www.startnext.com/diy-beatmungsgeraet

the idea : The aim is to develop a ventilator or an oxygen concentrator, to build corresponding prototypes and to share the designs as open source.


the great support !









Beside oxygen generator/concentrator also ventilator ,April 2021 development stage (me)  unknown :

https://translate.google.com/translate?sl=de&tl=en&u=https://healthcare-in-europe.com/de/news/forscher-entwickeln-beatmungsgeraete-zum-selbstbauen.html

https://translate.google.com/translate?sl=de&tl=en&u=https://www.heise.de/hintergrund/WirVsVirus-Beatmungsgeraet-im-Eigenbau-4690584.html


https://translate.google.com/translate?sl=de&tl=en&u=https://www.deutschlandfunkkultur.de/maker-szene-beatmungsgeraete-im-eigenbau.1264.de.html?dram:article_id%3D473529


professional legal replication model : https://www.oxicur.de/kur-5000 ION S



Oxygen concentrator
Dimensions: H 55 x W 21.5 x D 55 cm
Weight: approx. 21 kg
Operating voltage: 230 V / 50 Hz
Nominal current: 2.0 A
Flow: 0 - 5 l / min. stepless
Oxygen concentration:
0.1 - 3 l / min. 95 +/- 3 vol.% O2
- 4 l / min. 90 +/- 3 vol.% O2
- 5 l / min. 82 +/- 3 vol.% O2


Sound pressure level: 48 dB (A) according to ISO 3744
Outlet pressure: 300 - 350 mbar
according to DIN EN ISO 8359
Coarse filter: accessible from the front
Fine filter: 2-fold in the device
Microfilter: in the device
Bacteria filter: in the device


comparison : weight/liter per minute/%


https://www.aliexpress.com/item/1005001425171573.html?albagn=888888&&src=google&albch=search&acnt=479-062-3723&isdl=y&aff_short_key=UneMJZVf&albcp=12578137352&albag=122351024049&slnk=&trgt=dsa-52949609153&plac=&crea=507686942134&netw=g&device=c&mtctp=b&memo1=&albbt=Google_7_search&aff_platform=google&gclid=EAIaIQobChMIquvS89iX8AIVDrLVCh17XAV_EAAYBCAAEgLU_vD_BwE&gclsrc=aw.ds

5 lt/min

https://www.alibaba.com/product-detail/5lpm-home-oxygen-concentrator-mini-oxygen_62371708932.html?spm=a2700.7724857.0.0.55604c5aCcJVxX


250 US$ for a 10 lt/min 95% oxygen concentrator/generator is a good target !


https://www.youtube.com/watch?v=8fDJ30SG4NA     https://www.youtube.com/watch?v=2U1sdMwJ1gE


https://www.youtube.com/watch?v=kibjku2GYq0        https://www.youtube.com/watch?v=hJ9agj3yWJc

[stivep]

http://witcombe.sbc.edu/water/chemistryelectrolysis.html
Wesley