The Ledger
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Finke: Brimstone's process can be carbon-negative even using dirty fuels
“The beauty of our process is that actually could be substantially lower carbon or even carbon negative under a wide range of energy sources, including the use of those dirtier fuels.”
Finke: Calcium silicate eliminates 60% of cement emissions immediately
“The calcium silicate rock, A, does not contain any CO two. So we eliminate 60% of the emissions just by using a different rock.”
Finke: Brimstone process yields magnesium waste that passively sequesters CO2
“It produces a magnesium-based waste product, and that magnesium-based waste product will passively sequester CO₂. Just sitting on the ground, it will react with CO₂ in the air to permanently sequester CO₂.”
Finke: Brimstone cement certified as chemically identical Ordinary Portland Cement
“So just this last July, we got a third party certification that we, the cement that we made passed the existing standard for ordinary Portland cement showing that it's chemically and physically identical to the conventionally produced product.”
Finke: Brimstone holds patents on producing Portland cement from silicate rock
“So the process is patented and the utilization of this rock to produce Portland cement is also patented. So another company would need to license or joint venture with us in order to make cement via this process.”
Finke: Hydrogen is made from fossil fuels because it is cheapest
“We don't make hydrogen by splitting water today. We make hydrogen a different way from a fossil fuel, actually. And we do that because it's the lowest cost way to make hydrogen.”
Finke: Cement accounts for about 90% of concrete's carbon emissions
“And just to clarify the cement and concrete, concrete is the building material, and cement is the binder, the glue. And about 90% of the emissions come from cement.”