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A comment on Launch HN: Remora (YC W21) – Carbon capture for semi trucks. Parent comment

Re:Launch HN: Remora (YC W21) – Carbon capture for semi trucks by oppositelock on Wednesday March 10, 2021 @12:41PM (#26413874)
It certainly does. The O2 comes from the air and is heavier than carbon. The carbon comes from the fuel, which is its main content by weight.

1 kg of carbon from fuel + 1.75 kg of O2 from aith = 2.75 kg of CO2.

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Re:Launch HN: Remora (YC W21) – Carbon capture for semi trucks by hinkley on Wednesday March 10, 2021 @08:22PM (#26418953)
Meanwhile the hydrogen in a hydrocarbon is somewhere in the range of 1/7th of the weight, so the fact that it all goes up the exhaust pipe in the form of water doesn't really subtract all that much weight from the input.

There's more energy in the hydrogen bonds, not the carbon-carbon bonds, right? Just adds insult to injury, if you ask me.

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