Compact and cheap and abundant CO2 capture from the air. Upgraded.

David Judbarovski, 87, systems engineering, Israel. judbarovski@gmail.com, judbarovski.blogspot.com. Abstract. CO2 + 3 H2 = 2 H2O + CH2 (abbreviation of Hydrocarbon fuel) Compact and cheap and abundant CO2 capture from the air. Upgraded Disclosure. (1) 2KOH (aq) + natural air (400 gram CO2 /m3) continuously enter in a reactor & mixer = K2CO3 (aq) + H2O. Here KOH is used to solve design problems of direct CO2 capture from the air. (2) K2CO3 + H2O + continuously CaO (aq) = CaCO3 (sediment in growing quantity) + recycled and continuously return back 2KOH + H2O. (3) CaCO3 + 2NH3 = N2 + 3 H2 + CaO (recycled) + CO2 (target product). Here 2NH3 = N2 +3 H2 is reversible reaction, serves as a catalyst, reducing temperature of CaCO3 decomposition from 850 C down to 375 C. Because all reagents used here are circular and practically free, the target product of CO2 is breakthrough cheap too.

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