Renewables-2017

Closed-loop H20 thermolysis. Ca(OH)2 = CaO + H2O circular. May 03, 2026 (1) Ca(OH)2 = CaO + H2O, dH = 109 kJ /mol, dS = 144 J/mol * K. T decomp. = 350 C - 600 C (390 -476 C prefered). (2) CaO + H2O + k * (H2O = H2 + 0.5 O2) + Ca(OH)2. T > (k * 242 - 109) / (54 * k + 144). If k= 0.8, T > 180 C. The H2 product cost (OPEX) is 242 kJ * 10^6 /3600 /2 kWh * USD 0.004 /kWh = USD 160 /ton H2. References. [1] References. 2021 Annual Meeting. (397e) Cheap Energy is a Key to Competitive Artificial Fuels. https://www.aiche.org/conferences-events. [2] Submitted on April 07, 2026 to AIChE-2026 annual conference.

Drastically land saving technologies to provide all mankind needs in energy and food. May 02, 2026 About 500,000 km2 of lands are enough to substitute global fossil fuels consume by clean renewable primery energy. Really, if 1100 kWh / m2 in moderate climate, 10 milliards ton of oil equivalen (toe) fossil fuels consume annualy, (now 85% of all energy needs). 242 kJ / mol hydrogen [1] can be converted in zero-carbon artificial fuels, so 242 millions / 14 /3600 sec. = 17,000 kWh / toe = 15 m2. 10^10 * 15 / 10^6 /0.3 efficiency = 500,000 km2 or about 0.1 % of the Eeath surface, land and water to provide all energy consume of the mankind [1], domestically and distribute. For Germany it is 2.5%. 48 millions km2 of present agriculture lands globally can be substitudted sufficiently by Lemna minor farming. That specia can grow everywear and dubled their mass in 2.5 - 3 days, used tradicionally as a meal in Asia. Moreover, being 10,000 km2 only, it is enough for 25% meals of all mankind, if th...