Posts

Zero-carbon and cheap hydrogen production , changing a game.

September 19, 2025 Breakthrough cheap and zero-carbon hydrogen production can change a game in chemistry and energetics. David judbarovski, systems engineering, principle inventor, retired. judbarovski.blogspot.com, judbarovski@gmail.com. (a) CO2 [1] + H2 = CO + H20 + 41 kJ, endothermic. Such reaction is known (1780 yr., rewersible WGSR - Water-gas shift reaction) and circular here, so it is for free. (b) The novelty is thermochemistry being (CO + H20) + 0.5 H2O = O.5 * (H2 +0.5 O2) + (CO2 + H2) + (- 41 + 242/2) = 80 kJ - USD 88 / ton H2. [2], [3]. dG = 80 kJ + 65 * T, so it needns catalysts, can be the iron, and additional heating. References. [1] CO2 mass production from the air very cheaply, judbarovski.blogspot.com/2025/01, posted on 12 January, 2025 [2] Breakthrough cheap Re energy, davidjud.blogspot.com/2024/06, posted on 21 June, 2024. [3] Solar and Wind as cheap as 0.4 cent / kWh judbarovski.blogspot.com/2025/02, posted 11 February, 2025. [4] CV-2023, davidjud.blogs...
Post a Comment
Read more

NH3 + Water, Storage and Transportation. Формат Nature Energy.

A compact and hazard-free method for ammonia-based hydrogen storage and transport enabling realistic hydrogen economics David Judbarovski Independent researcher, Systems Engineering, Principal Inventor Email: judbarovski@gmail.com Blog: judbarovski.blogspot.com --- Abstract Safe, scalable, and low-cost hydrogen storage remains a major obstacle in achieving a global hydrogen economy. Here we present a simple and compact approach based on dissolving ammonia (NH₃) in water at mild conditions (10 °C, 1 atm), achieving up to 900 g NH₃ per kg of H₂O, equivalent to roughly 1,000 L of gaseous NH₃ per liter of solution. This method allows three orders of magnitude higher volumetric efficiency compared with conventional gaseous or cryogenic hydrogen storage, while significantly reducing hazards associated with ammonia leakage or high-pressure systems. The system integrates naturally with renewable hydrogen and ammonia synthesis pathways, enabling a continuous and flexible conversion between ammo...
Post a Comment
Read more

Extremely compact and hazard free way, opening a door for realistic hydrogen economics. - Edited

Extremely compact and hazard free way to store, and delivery, and usage of NH3, opening a door for realistic hydrogen economics. David Judbarovski, systems engineering, principle inventor, 85, retired. judbarovski.blogspot.com, judbarovski@gmail.com ŕ Abstract. NH3 of USD 50 /ton, see [1], is produced from the air and water and from the cheapened hydrogen of USD 157 /ton, Opex, see [1a], with a help of my supercheap renewable energy conceptions, see [2], [2a], such NH3 being dissolved at 10 Cantigrade in the water 900 g / kg water, it is about 1000 liter / liter such solution, hence it allows to transport and to store a huge amounts of NH3 at mild conditiins and a three order of magnitude more compact and cheaper than any others conventional alternatives. References. [1] Incredibly cheap and zero-carbon NH3 production, judbarovski.blogspot.com/2025/09, posted on Sept. 21, 2025. [1a] Breakthrough cheap and zero-carbon hydrogen production, judbarovski.blogspot.com/2025/09, pos...
Post a Comment
Read more

Extremely compact and hazard free way, opening a door for realistic hydrogen economics.

Extremely compact and hazard free way to store, and delivery, and usage of NH3, opening a door for realistic hydrogen economics. [1],[1a]. David Judbarovski, systems engineering, principle inventor, 85, retired. judbarovski.blogspot.com, judbarovski@gmail.com. Abstract. Ammonia being greatly soluble in the water, it can and must be produced well scalably and distributely and remotely by my supercheap renewable energy [2], [2a], and stored and trasported at very mild conditions of temperature, pressure, compactness, safety, and cost up to three order of magnetude better than its conventional alternatives. The ammonia or its hydrogen can be turn in electricity, including direct mobile applications. NH3 storage and trasportation as an example. At 10 C and less 1 atm, such solution can be 900 g NH3 / kg water, or 1300 liters NH3 /liter H20 either in storage tank or in a tube for transportation. It is reachebly by conventional pressing of about 1000 atm. QED !!! 1t is extremaly ...
Post a Comment
Read more

Incredibly cheap and zero-carbon NH3 production.

Incredibly cheap and zero-carbon NH3. It is important step towards the implementation of H2 energy from a dream to reality by following strategy. (1) distributed renewable energy generation, (2) well scalable NH3 production by the said RE energy on saveful places eiher not so far away of dense settlement, or for the NH3 storage tanks, (3) conversion of NH3 in electricity, of any shedule for powering. David Judbarovski,systems engineering, principle inventor, retired. judbarovski.blogspot.com, judbarovski@gmail.com Short disclosure. Here CO2 and CO are circular and practicaly free. (1) CO2 + H2 = CO + H2O - 3 kJ. (2) CO + 1.5 H2O = CO2 + 1.5 H2 + 0.25 O2 + 146 kJ of such thermochemistry - 3 kJ = 143 = USD 157/Mmol heat. [1], and totally Q(H) = USD 157 / ton H2. 0.5 N2 + 1.5 H2 = NH3 - 46 kJ. 46 Mmol heat * (0.3 effectiveness heat in electricity) * (0.03 tariffs) / 3,600 = USD 115.[1]. Here N2 is practically free, if each mol of the NH3 burns oxygen out of the air forming 3.5 mol...
Post a Comment
Read more

Breakthrough cheap and zero-carbon hydrogen production

Breakthrough cheap and zero-carbon hydrogen production can change a game in chemestry and energy. David judbarovski, systems engineering, principle inventor, retired. judbarovski.blogspot.com, judbarovski@gmail.com. (a) CO2 [1] + H2 = CO + H20 - 3 kJ. Being circular, CO2 is free here. If Q served for a cost, Q(CO) * 28 = Q(H) * 2, so Q(CO) = Q(H) / 14. (b) CO + 1.5 H2O = CO2 + 1.5 H2 + 0.25 O2 + 146 kJ. 146 kJ - 3 = 143 * 4/ 3.6 [2] = USD 157.0 /Mmol. Really, 1.5 * 2 * Q(H) = Q(CO) * 28 + USD 157 = 2 * Q(H) + USD 157, so Q(H) = USD 157 /ton H2 References. [1] CO2 mass production from the air very cheaply, judbarovski.blogspot.com/2025/01, posted on 12 January, 2025. [2] Breakthrough cheap Re energy, davidjud.blogspot.com/2024/06, posted on 21 June, 2024. [3] Solar and Wind as cheap as 0.4 cent / kWh judbarovski.blogspot.com/2025/02, posted 11 February, 2025. [4] CV-2023, davidjud.blogspot.com/2023/04, posted 27 April, 2023.
Post a Comment
Read more

Cheap energy production and delivery - AIChE-2017

2017 Annual Meeting (638a) Cheap Energy Production and Delivery Everywhere Including Mobile Applications Proceedings 2017 Annual Meeting Conference Type AIChE Annual Meeting Conference Year 2017 ISBN 978-0-8169-1102-8 Group Topical Conference: NH3 Energy+ - Enabling Optimized, Sustainable Energy and Agriculture Session Poster Session: NH3 Energy+ Keywords Ammonia Energy (Sustainability & Environment) Checkout You must be logged in to view this content. Log in now. Pricing Individuals List Price 225.00 AIChE Pro Members 150.00 AIChE Graduate Student Members Free AIChE Undergraduate Student Members Free Author David Judbarovski - Presenter Cheap energy production & delivery everywhere including mobile applications Author: David Judbarovski, systems engineering, retired engineer, Israel judbarovski@gmail.com , http://judbarovski.livejournal.com , Linkedin My conception is based on my developments of some years in a field of energy cheapening and sustainability and other novel tec...
Post a Comment
Read more