“According to the United States Department of Agriculture, the country produced nearly 91 billion eggs in 2006. That equates to about 455,000 tons of shell per year that could potentially be used in hydrogen production.”
Sorry, but unless our Fascist/Stalinist nanny-state advocates are going to pass laws that mandate separate days of the week and separate containers for everyone to “recycle” all eggshells, used commercially or individually, eggshells cannot ever “potentially be used in hydrogen production”. That claim is laughable. They will have to find another source of, or means to make, Calcium Carbonate - maybe it will even do a better job than eggshells.
EGGSACKLEY!..............
Most eggshells are discarded by industry, not households, so if this process captures them at a lower cost than landfill the industrial egg users will benefit. This is not unlike the companies that collect wast oil from restaurants and recycle it into fuel.
All the same, this article doesn’t have enough detail to determine whether the process is worthwhile.