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A comment on Launch HN: Phase Biolabs (YC W22) – Converting CO2 to Carbon-Neutral Chemicals. Parent comment

Re:Launch HN: Phase Biolabs (YC W22) – Converting CO2 to Car... by jp57 on Saturday March 05, 2022 @09:23AM (#30567824)
This ethanol is produced via fermentation, though. Just not fermentation of plant matter. The OP uses the word "fermentation" several times.

We don't normally think of the containers where wine or sour mash are fermented as bioreactors, but they are.

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Re:Launch HN: Phase Biolabs (YC W22) – Converting CO2 to Car... by wombatpm on Sunday March 06, 2022 @10:11PM (#30583820)
Right, but the source product is sugar a C6 compound, and the fermentation pathwasy removes carbon atoms. This process is building up from C1 so methanol is a possible side product. Or at least I bet that is the concern
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