CHON World

 by Ian Page. http://www.eng.cam.ac.uk/news/ cambridge-engineers-invent- world-s-first-zero-emissions- cement Cement without CO2 production seems impossible. After all the basic chemistry of cement production is  CaCO3+ red Heat=> CaO + CO2 It's hard to capture the Co2 because of the process conditions.

By Ian Page From Nature 605 19 May 22 470. Chemical reactions are often a mixture of potential parallel reactions, and potential serial reactions. Chemists play with temperature, flow rate, pressure, proportions etc. to persuade just the one reaction they want to happen.