US 12,269,023 B2
Thermochemical engine
Arshad Raza, Dhahran (SA); Guenther Glatz, Dhahran (SA); Mohamed Mahmoud, Dhahran (SA); Mobeen Murtaza, Dhahran (SA); Alade Olalekan Saheed, Dhahran (SA); Esmail Mohamed Ali Mokheimer, Dhahran (SA); and Muhammad Shahzad Kamal, Dhahran (SA)
Assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed on Aug. 26, 2024, as Appl. No. 18/815,212.
Claims priority of provisional application 63/578,807, filed on Aug. 25, 2023.
Prior Publication US 2025/0065286 A1, Feb. 27, 2025
Int. Cl. B01J 7/02 (2006.01); F03G 7/00 (2006.01)
CPC B01J 7/02 (2013.01) [F03G 7/008 (2021.08)] 15 Claims
OG exemplary drawing
 
1. A method of providing kinetic energy to an object, the method comprising
coupling the object to a gas-driven energy transducer of a thermochemical engine that includes
a reaction chamber comprising a nitrite source inlet, an ammonium source inlet, and a gas outlet, and
a gas-driven energy transducer coupled to the reaction chamber such that a gas produced in the reaction chamber moves the gas-driven energy transducer in a process of exiting the reaction chamber via the gas outlet;
providing to the reaction chamber a nitrite source comprising a nitrite ion and an ammonium source comprising an ammonium ion in the presence of water at a reaction temperature of 50 to 150° C.; and
rinsing the reaction chamber by providing to the reaction chamber a wash fluid,
wherein the nitrite ion and the ammonium ion undergo a chemical reaction to produce a gas and heat which drive the gas-driven energy transducer.