#hydrogensafety — Public Fediverse posts

#HydrogenSafety
As @tixhonjm.bsky.social says, a single picture is very powerful.↙️

This screen grab↘️ shows the root cause of the 23May2019 Gangneung, South Korea #hydrogen explosion that killed 2: O2 pressure > H2 pressure, so any electrolyzer leak was #O2 into #H2.
Anything over 6% O2 in the H2 storage tank is enough to enable an explosion!

#Safety101 #HydrogenSafety #Hydrogen101
Korea Minister of Employment and Labor Kim Young-hoon issued an emergency directive on the 17th (the same day as the most-recent accident) regarding the #H2 explosion.
It is actually the 2nd #hydrogen pipeline accident this year!
Korea needs to establish a culture of hydrogen safety ASAP!

#Safety101 #HydrogenSafety #Hydrogen101
Korea Minister of Employment and Labor Kim Young-hoon issued an emergency directive on the 17th (the same day as the most-recent accident) regarding the #H2 explosion.
It is actually the 2nd #hydrogen pipeline accident this year!
Korea needs to establish a culture of hydrogen safety ASAP!

#Safety101 #HydrogenSafety #Hydrogen101
Korea Minister of Employment and Labor Kim Young-hoon issued an emergency directive on the 17th (the same day as the most-recent accident) regarding the #H2 explosion.
It is actually the 2nd #hydrogen pipeline accident this year!
Korea needs to establish a culture of hydrogen safety ASAP!

#Safety101 #HydrogenSafety #Hydrogen101
🔥 Fire at hydrogen production unit in SK Energy Ulsan, Korea refinery injures 5. ↙️
↘️ Likely root cause: failure to follow standard operating procedure #SOP & purge residual hydrogen gas from pipeline before opening the line. Released gas cloud exploded.
#hydrogen #H2

#Safety101 #HydrogenSafety #Hydrogen101
🔥 Fire at hydrogen production unit in SK Energy Ulsan, Korea refinery injures 5. ↙️
↘️ Likely root cause: failure to follow standard operating procedure #SOP & purge residual hydrogen gas from pipeline before opening the line. Released gas cloud exploded.
#hydrogen #H2

#Safety101 #HydrogenSafety #Hydrogen101
🔥 Fire at hydrogen production unit in SK Energy Ulsan, Korea refinery injures 5. ↙️
↘️ Likely root cause: failure to follow standard operating procedure #SOP & purge residual hydrogen gas from pipeline before opening the line. Released gas cloud exploded.
#hydrogen #H2

#hydrogen101 #HydrogenSafety
Shoot a Type IV carbon-fiber fuel cell electric vehicle #FCEV hydrogen storage tank with a small caliber bullet and it bounces off. A .50-caliber bullet makes a hole but no fire as the #hydrogen is released.⬇️
Try that with a battery pack.
#H2 #fuelcell

#Electrolysis101
Eliseo (Lee) Curcio provided on LinkedIn what appears to be an AI-generated summary of the Arup (2022) Scottish Government "Assessment of electrolyzers: report".↙️

My LinkedIn comment https://bit.ly/40pJZIU critiques two of these views↘️ :

1⃣"Thermolysis" (requires 2,500°C, not 2,000°C!) is not "Electrolysis"
2⃣"Membrane-less Electrolysis" is intrinsically unsafe & not allowed by international safety standard ISO 22734
#HydrogenSafety

#Electrolysis101
Eliseo (Lee) Curcio provided on LinkedIn what appears to be an AI-generated summary of the Arup (2022) Scottish Government "Assessment of electrolyzers: report".↙️

My LinkedIn comment https://bit.ly/40pJZIU critiques two of these views↘️ :

1⃣"Thermolysis" (requires 2,500°C, not 2,000°C!) is not "Electrolysis"
2⃣"Membrane-less Electrolysis" is intrinsically unsafe & not allowed by international safety standard ISO 22734
#HydrogenSafety

#Electrolysis101
Eliseo (Lee) Curcio provided on LinkedIn what appears to be an AI-generated summary of the Arup (2022) Scottish Government "Assessment of electrolyzers: report".↙️

My LinkedIn comment https://bit.ly/40pJZIU critiques two of these views↘️ :

1⃣"Thermolysis" (requires 2,500°C, not 2,000°C!) is not "Electrolysis"
2⃣"Membrane-less Electrolysis" is intrinsically unsafe & not allowed by international safety standard ISO 22734
#HydrogenSafety

#HydrogenSafety #Hydrogen101
🎆 🔥 2025Mar31 Korea Supreme Court: +10B won US$6.8MM damages award for 2019 Gangneung hydrogen explosion, which killed 2 injured 6
1) No oxygen monitor on #hydrogen gas produced by electrolyzer
2) Unqualified incompetent company was in charge!

Conclusion: use qualified people who know #H2 safety

My 2024 post with more technical details:

https://bit.ly/3E1v5jR

#H2safety #electrolysis

1/2 #HydrogenSafety
I hope Supercritical Solutions Ltd #SSL told Shell Ventures #Shell & Toyota Ventures #Toyota that #SSL electrolyzers produce flammable🔥 hydrogen-oxygen gas mixes!

Granted patent GB2605761 has 0 data.

But WIPO pending app ⬇️ WO2024061976A3 by #SSL shows:

- 22% H2 in anode O2 (5.5x above 4% lower flammability limit #LFL)🔥
- 11-12% O2 in cathode H2 (2x below 6% upper flammability limit #UFL)🔥

I need to let UK HSE Solutions know #SSL is totally unsafe!
#hydrogen #H2 #safety