#H2Safety
Some say any hydrogen in pipelines would not be safe.

That is true, if the pipeline is old and there is bad preventive maintenance. Just ask #MNenergy peeps in Minnesota, where a #NNGCompany pipeline explosion left hundreds without natural gas.
#hydrogen #H2 #safety via #PipelineandGas

#Hydrogen101 #Safety101 #H2Safety
RE: Clyde Hydrogen demo of integrated decoupled electrolyzer prototype.

⬇️Claim "Safety-no possibility of #hydrogen and #oxygen mixing"

UNTRUE: flow sheet shows O2 could travel with liquid mediator to catalytic hydrogen generator.
H2 + O2 = BAD

#Safety101 #H2Safety
How can a French factory reopen after an explosion kills 2 workers, without finding the cause of the blast?

Silicone plants often use hydrogen; unsafe #hydrogen levels can explode; 1 died in this plant in 2016 & a 2nd safety incident in 2025!!
#H2 #safety

#Hydrogen101 #H2Safety
💥Hydrogen explosion at Elkem silicone factory near Lyon, France seriously injures 4, 3 seriously. Plant's had safety problems, including 1 dead in 2016.

Might be similar to 2019 Illinois, US silicon hydride plant SiH explosion.
#H2 #hydrogen #safety

#Hydrogen101 #H2Safety
In Oman, Netherlands' H2-Fuel & HydroFlexx ↙️lie about their "new" powdered sodium borohydride hydrogen carrier:
-NaBH4→H2 not a new idea (ca. 1950s)
-High #hydrogen density-NO (lower than 700Bar gaseous #H2 )↘️
-Non-flammable-NO↘️↘️
-Non-toxic-NO↘️↘️

#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

#H2Safety
How can one say "suitable for use in practical alkaline water electrolysis"↙️ when at only 900hr the 1A/cm2 hydrogen crossover ↘️becomes 0.9% H2 in O2 #HTO, or 22.5% of the lower flammability limit #LFL for #H2 in #O2?
ISO-22734 requires shutdown at 2% H2, or 50% of the #LFL!

Hydrogen volume percent in oxygen at the anode.

#H2Safety
How can you say "suitable for use in practical alkaline water electrolysis"↙️ when at only 900hr the 1A/cm2 hydrogen crossover ↘️becomes 0.9% H2 in O2 #HTO, or 22.5% of the lower flammability limit #LFL for #H2 in #O2?
ISO-22734 requires shutdown at 2% H2, or 50% of the #LFL!

4/4
#H2Safety
More on a poor hydrogen electrolyzer #QRA paper that IGNORED control failures:
4️⃣In 2004 NASA had an electrolyzer explosion when their PC-based control system crashed! Luckily, nobody was injured. Human-safety says "use a proper emergency shutdown system #ESD"

3/4
#H2Safety
More on a peer-reviewed hydrogen electrolyzer #QRA paper that should not have been accepted:

3️⃣Why does a lab electrolyzer need to worry about freezing?? 99.99% of the time lab tests are in heated indoor spaces! #SMDH

2/4
#H2Safety
More on a poor hydrogen electrolyzer #QRA paper:

2️⃣Does not mention cross-cell OR overboard electrolyzer H2 leaks. Does not mention keeping H2 pressure slightly over O2 pressure, to avoid getting a flammable mix of H2 in a tank. People die from such explosions!

1/4
#HydrogenSafety #H2Safety
Here's a peer-reviewed hydrogen electrolyzer safety (Quantitative Risk Analysis) #QRA paper that should not have been accepted:
1️⃣Claims highest risk is #hydrogen leaks from H2-water separator. I've never heard of such events causing explosions/death!
A little thread🧵

Original post on mastodon.online

#Wasserstoff gilt als Hoffnungsträger für die #Dekarbonisierung, doch beim Transport durch bestehende #Erdgasleitungen gibt es #Sicherheitsrisiken.

Wasserstoff macht Stahl spröder, schwächt die #Bruchfestigkeit und durchdringt #Kunststoffe. Ein Bericht der EU zeigt, dass viele Fragen zur […]

SGS Enhances Safety in North America by Acquiring H2Safety Services SGS has solidified its commitment to safety in North America by acquiring H2Safety, known for its expertise in emergency management and operational safety.

SGS Enhances Safety in North America by Acquiring H2Safety Services #Canada #Calgary #SGS #emergency_management #H2Safety

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

Conclusion: use qualified people who know #H2 safety
#H2safety

🧵2/2 #Hydrogen101 #H2Safety
My view from 6890mi away: untrained workers "blew the pipe" with hydrogen, rather than compressed air!
(🟥circle shows SS screening to catch debris at pipe outlet)
#H2 + air = boom + fire!
🟧 shows burnt paint, 🟩shows unharmed paint.
#hydrogen #fuelcell #SMDH

🧵1/2 #Hydrogen101 #H2Safety
Lotte SK Eneroot industrial hydrogen explosion in Ulsan, Korea sends 2 to hospital with 2nd degree burns via @hydrogeninsight.

energynews.biz reports explosion was triggered by a #hydrogen leak while cleaning a pipe by injecting #H2!
#SMDH

#Hydrogen101 #H2Safety
Hydrogen fuel cell lab explosion in Yongin, Korea sends 5 to hospital with minor injuries via @rachelparkes.bsky.social

My view from 6899mi away: plastic tubing (🟧below) was used for #hydrogen gas & failed. 🟥circle shows the melted end of a tube!
#H2 #fuelcell Link below

#Hydrogen101 #H2Safety
Why is Supercritical Solutions Ltd #SSL @supercritical.bsky.social allowed to develop a totally unsafe membrane-free #hydrogen production device?

4 ways #SSL fails @isostandards ISO 22734:
1)No insulating membrane
2)Membrane is porous
3)O2 in #H2
4)H2 in #O2
#safety

#Hydrogen101 #H2Safety
#SeeSomethingSaySomething
I just filed a complaint with the UK Health and Safety Executive #HSE regarding the totally unsafe Clean Power Hydrogen #CleanPowerH2 #CPH2 technology.

People have been killed & maimed with such mixed #H2 - #O2 processes!
#hydrogen #HHO #Brownsgas

Electrolysis Explosions in California By LA Fire Department Photo On August 9, 2011, an apparent hydrogen/oxygen explosion occurred at the alternative energy firm Rainbow of Hope in the Sylmar section of Los Angeles. Timothy A. Larson, 42...

🧵4/4
#H2Safety
Here's the link about the 2011Aug09 hydrogen/oxygen #HHO explosion💥 in Los Angeles: 2 maimed, a third injured:

bit.ly/MXZFsw

This 2011 accident occurred 14 months after another💥that killed one!
And they had a smaller 💥 in 2008!
#H2 #O2 #HHO #Brownsgas #oxyhydrogen #hydroxygas

🧵3/4
#Hydrogen101 #H2Safety
Lower flammability limit #LFL for H2 in O2 is 4%.
#HHO is 67% H2 (16.75x higher!) & quite explosive!
#H2 #O2 #HHO #Brownsgas #oxyhydrogen #hydroxygas

🧵2/4
#Hydrogen101 #H2Safety
💥BOOM! due to the explosive stoichiometric mixture of hydrogen/oxygen, also called HHO, Brown's gas, oxyhydrogen or hydroxy gas.

@lafd.bsky.social photos show what can happen when a speck of rust (or catalyst from the electrodes) ignites the hazardous mixture.

🧵1/4
#Hydrogen101 #H2Safety
UK Health and Safety Executive #HSE :

Why is Clean Power Hydrogen #CleanPowerH2 allowed to sell a totally unsafe membrane-free #hydrogen production device?

@isostandards ISO 22734 requires:
-Membrane between #H2 & #O2
-Operation below hydrogen's #LFL

Otherwise...

#Hydrogen101 #H2Safety
Rhino HySafe blast door for 🇬🇧hydrogen compressor project over-states pressure capabilities: 0.4barg↙️

EU's HyResponder ↘️ H2 facts:
-Deflagration pressures can reach 8atm/8.1barg
-Detonation P can reach 1.56MPa/15.6barg

#H2 #hydrogen #safety #compressors

#hydrogen101 #safety101
Naysayers warn that hydrogen leaks are explosive—but the same is true for any flammable gas, including natural gas in your kitchen. A spark from static electricity is enough to ignite!⚡️
Via @gunsnrosesgirl3 @alsamahi on Twitter
#hydrogen #H2 #safety #H2safety #energy