Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Gold/Mining/Energy : Green Hydrogen -- Ignore unavailable to you. Want to Upgrade?

To: Gib Bogle who wrote (186)	4/3/2021 11:28:42 PM
From: A.J. Mullen	2 Recommendations Recommended By Eric Ron Read Replies (1) \| Respond to of 2050

It's more than useful for steel making. It's essential to avoid associated CO2 emissions - 8% of the total anthropogenic CO2 at this time. Steel is made by reducing iron-ore, iron oxide. Currently this is achieved by heating the ore with coke - from coal. The carbon strips the oxygen to leave iron and CO2 is released to the atmosphere. If hydrogen is used, it takes the oxygen from the iron and water is produced in place of CO2. The podcast was railing against electrolyzers, which split the water, producing hydrogen and oxygen. It is "green hydrogen." It costs more than that from gas, oil or coal. It won't be used by industry without a carrot or stick, or some combination of the two. You say most H2 is used where it's made. I'd say, it's made where it's used. The world's biggest electrolyzer being built in Linde is going inside an oil refinery. The electricity is coming from wind turbines elsewhere. The podcasters made a useful point: if hydrogen is used to store electricity then the electrolyzers that make it would only run when electricity generation exceeds consumption. They would be idle when consumption exceeded generation. That's when the previously stored hydrogen would be used. That will make the economics more difficult, but it does not apply to substituting current used of "dirty H2" Iron and Steel furnaces, oil refineries, and fertilizer production are 24/7 operations.