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Seth Miller
Aug 6, 20232 min read
Synthetic Methane: Green Idealism versus Economic Reality
Synthetic methane is an emotionally appealing idea that has never made a lot of economic sense. The appeal is simple: Recapitulate...
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Seth Miller
Jul 17, 20233 min read
How crazy is this? Integrating DAC with power plant carbon capture
There is a fascinating new preprint out from MIT and the carbon capture startup 8 Rivers, "Optimization of a combined power plant CO2...
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Seth Miller
Jul 9, 20232 min read
How crazy is this?: Direct air capture from buildings
So here is a cute little idea: Integrate direct air capture (DAC) into the HVAC system of a building, both to capture carbon and to...
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Seth Miller
Jun 26, 20232 min read
Solid amine sorbents are limited by amine lifetime
Amines make excellent sorbents for carbon dioxide because they are rich in electrons, and therefore are ready to react with the...
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Seth Miller
May 29, 20233 min read
Frontier and JP Morgan are charmed by bio-oil
In the last two weeks Charm Industrial has inked two huge commitments for its process of capturing and storing carbon by converting waste...
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Seth Miller
Apr 30, 20232 min read
Biomass for green hydrogen
In the quest for renewable energy sources, hydrogen is emerging as the energy carrier of the future. Today we make hydrogen cheaply from...
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Seth Miller
Mar 12, 20233 min read
Solutions exist to incentivize tree planting, but we don't quite care enough yet.
Planting trees is a well-known method for mitigating climate change. The raw cost of planting trees is relatively low, estimated at $10...
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Seth Miller
Feb 20, 20233 min read
DAC using mining tailings
The ultimate fate of CO2 in the air is to be turned to rock. It just takes a long, long time. Volcanic rock is quite basic. Calcium and...
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Seth Miller
Jan 15, 20231 min read
Carbon capture use
I am not a huge fan of the U in CCUS, because the synthesis of synthetic chemicals from CO2 is expensive. Whether the CO2 comes from...
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Seth Miller
Jan 8, 20232 min read
DAC costs depend on the weather
In principle. direct air capture (DAC) can be placed anywhere in the world. For carbon storage, ideally a DAC plant is placed near...
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