#HydrogenSafety #GasSafety101
🔥Follow-up on SK Energy's Ulsan, Korea refinery explosion: 2nd person dies.

🔥Follow-up #2: If the @h2_view story is true↙️, not just residual hydrogen leaked & exploded when the pipeline was opened, but the #H2 gas supply was not isolated! #SOP must include a double block-and-bleed! ↘️

#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
🔥 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
#H2Safety #HydrogenSafety
💥Hydrogen explosion in an engineering laboratory at the University of Tehran #UnivOfTehran . 1 dead; 4 injured.
Occurred when a hydrogen cylinder was being replaced.
Shows the need for training & standard operating procedures #SOP .
#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

#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

Thread by @KeithDPatch on Thread Reader App

@KeithDPatch: Hey Gexcon @GexconAS @GexconUK, hit me up the next time you have a hydrogen safety incident: Your 2024May22 blog on 2019 Gangneung🇰🇷 #H2 explosion (2 killed) ignores the root cause: electrolyzer operat...…

️ A breakthrough in hydrogen safety! The new organic semiconductor sensor detects leaks fast, affordably, and with incredible accuracy. Making hydrogen energy safer for homes, industries, and transportation! #HydrogenSafety #CleanEnergyTech #Innovation #RenewableEnergy #FutureTech https://www.bocvip.com/801374/%ef%b8%8f-a-breakthrough-in-hydrogen-safety-the-new-organic-semiconductor-sensor-detects-leaks-fast-affordably-and-with-incredible-accuracy-making-hydrogen-energy-safer-for-homes-industries-and/ #energy
️ A breakthrough in hydrogen safety! The new organic semiconductor sensor detects leaks fast, affordably, and with incredible accuracy. Making hydrogen energy safer for homes, industries, and transportation! #HydrogenSafety #CleanEnergyTech #Innovation #RenewableEnergy #FutureTech

️ A breakthrough in hydrogen safety! The new organic semiconductor sensor detects leaks fast, affordably, and with incredible accuracy. Making hydrogen energy safer for homes, industries, and transportation! #HydrogenSafety #CleanEnergyTech #Innovation #RenewableEnergy #FutureTechhttps://www.hydrogenfuelnews.com/a-new-era-of-hydrogen-safety/8569946/Posted by newsienow

BOCVIP

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