公开(公告)号：US12139795B1

公开(公告)日：2024-11-12

申请号：US18382254

申请日：2023-10-20

Applicant: KUWAIT UNIVERSITY

Inventor： Naser Alsayegh ,  Nawaf F. Aljuwayhel ,  Husain Bahzad

IPC: C23C24/00 ,  B22F1/05 ,  B22F1/054 ,  C21D1/18 ,  C22F1/00

Abstract: An effervescent suspension for metallic quenching and coating purposes, is implemented by providing and an effervescent tablet with mixture comprising a solid alkaline, a solid acid, and noble metal particles. The mixture is added to water to produce a reaction in the water resulting in the release of CO2 gas, which disperses the noble metal particles in the water to provide a suspension. A hot metal material, having a temperature below its melting point, is immersed in the suspension to provide a quenched metal that has a temperature below its melting point in the suspension to provide a quenched metal coated with noble metal particles. The solid alkaline may comprises sodium bicarbonate (NaHCO2) powder and sodium carbonate (Na2CO3) powder. The solid acid may comprise monosodium phosphate (NaH2PO4) powder.

公开(公告)号：US12129173B2

公开(公告)日：2024-10-29

申请号：US18103117

申请日：2023-01-30

Applicant: KUWAIT UNIVERSITY

Inventor： Naser Alsayegh ,  Husain Bahzad ,  Nawaf F. Aljuwayhel ,  Ali Alsayegh

IPC: C01B3/08 ,  C01B5/00

CPC classification number: C01B3/08 ,  C01B5/00 ,  C01B2203/066

Abstract: A system and method for producing hydrogen (H2) gas and a magnesium (Mg)-aluminum (Al) based aqueous suspension from pre-prepared effervescent tablets are provided. The produced H2 gas can be stored in a tank or directly utilized in a fuel cell, whereas the produced suspension can be employed as an advanced heat transfer fluid in a variety of thermal applications. Furthermore, the as-prepared tablets are fabricated with a homogeneously mixed and well-compressed mixture of Al particles, Mg particles, and sodium bicarbonate (NaHCO3) powder in a sealed container to prevent air and humidity from reacting with the raw materials. As a result of the chemical reaction between the tablet and water, H2 gas (in the form of bubbles) and the Mg—Al-based suspension are produced simultaneously. This system results in two products (i.e., H2 and suspension) that can be used individually or all at once by integrating the different system components together.

公开(公告)号：US12012332B1

公开(公告)日：2024-06-18

申请号：US18386095

申请日：2023-11-01

Applicant: KUWAIT UNIVERSITY

Inventor： Naser Alsayegh ,  Husain Bahzad ,  Nawaf F. Aljuwayhel ,  Ali Alsayegh

IPC: C01B3/08 ,  B60L53/54 ,  B60R16/03 ,  C01B3/00 ,  H01M8/04082 ,  H01M8/04089

CPC classification number: C01B3/08 ,  B60L53/54 ,  B60R16/03 ,  C01B3/0026 ,  H01M8/04089 ,  H01M8/04216 ,  H01M2250/10 ,  H01M2250/20

Abstract: A system and method for producing hydrogen (H2) gas and a single or hybrid hydrogen active material based aqueous suspension from pre-prepared effervescent tablets are provided. The produced H2 gas can be stored in a tank or directly utilized in a fuel cell, whereas the produced suspension can be employed as an advanced heat transfer fluid in a variety of thermal applications. The effervescent tablets can be fabricated with a homogeneously mixed and well-compressed mixture of hydrogen active metallic particles and effervescent powder in a sealed container to prevent air and humidity from reacting with the raw materials. As a result of the chemical reaction between the tablet and water, H2 gas (in the form of bubbles) and the hydrogen active material-based suspension are produced simultaneously. This system results in two products that can be used individually or all at once by integrating the different system components together.