US 12,084,781 B2
Hydrogen mixed gas generation method
Isami Shigematsu, Fukuoka (JP); and Naoki Hidaka, Fukuoka (JP)
Assigned to FRIEND CO., LTD., Fukuoka (JP)
Appl. No. 15/734,734
Filed by FRIEND CO., LTD., Fukuoka (JP)
PCT Filed Jan. 9, 2019, PCT No. PCT/JP2019/000404
§ 371(c)(1), (2) Date Dec. 3, 2020,
PCT Pub. No. WO2019/234961, PCT Pub. Date Dec. 12, 2019.
Claims priority of application No. PCT/JP2018/022068 (WO), filed on Jun. 8, 2018.
Prior Publication US 2021/0230754 A1, Jul. 29, 2021
Int. Cl. C25B 1/042 (2021.01); A61M 16/06 (2006.01); A61M 16/10 (2006.01); A61M 16/12 (2006.01); C01B 3/10 (2006.01); C25B 1/50 (2021.01); C25B 9/67 (2021.01); C25B 15/08 (2006.01)
CPC C25B 1/042 (2021.01) [A61M 16/0666 (2013.01); A61M 16/1095 (2014.02); A61M 16/122 (2014.02); A61M 16/125 (2014.02); C01B 3/10 (2013.01); C25B 1/50 (2021.01); C25B 9/67 (2021.01); C25B 15/08 (2013.01); A61M 2202/02 (2013.01); C01B 2203/0855 (2013.01); C01B 2203/1005 (2013.01); Y02E 60/36 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A hydrogen mixed gas generation method using a device that includes a heating pipe housing therein a reduction acceleration member and a heating part including a heating device that heats the heating pipe, the method comprising:
a first process including:
causing raw water to flow into the heating pipe and heating the flowing raw water to generate water vapor;
heating the generated water vapor to between 500° C. to 800° C.;
causing the heated water vapor to be in contact with the reduction acceleration member that is heated along with the raw water to reduce the water vapor and generate hydrogen gas; and
a second process including:
diluting the hydrogen gas generated in the first process to obtain hydrogen mixed gas whose concentration of hydrogen gas is between 500 ppm to 20000 ppm, wherein
the reduction acceleration member includes:
a first metal member that is formed of stainless and includes a cylindrical part where rod bodies respectively extend from both ends of the cylindrical part; and
a plurality of second metal members that is formed of a steel material and is housed in the cylindrical part in a bundled state.