US 12,233,377 B2
Hydrogen gas supply apparatus and hydrogen gas supply method
Kazumi Maehara, Tokyo (JP); Daisaku Tateishi, Tokyo (JP); Motoyoshi Fukuoka, Tokyo (JP); and Tadashi Seike, Tokyo (JP)
Assigned to ENEOS CORPORATION, Tokyo (JP)
Appl. No. 17/441,499
Filed by ENEOS CORPORATION, Tokyo (JP)
PCT Filed Mar. 24, 2020, PCT No. PCT/JP2020/012942
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2020/196491, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-061869 (JP), filed on Mar. 27, 2019.
Prior Publication US 2022/0161183 A1, May 26, 2022
Int. Cl. B01D 53/04 (2006.01); B01J 20/28 (2006.01); B01J 20/34 (2006.01); C01B 3/56 (2006.01); F17C 5/06 (2006.01)
CPC B01D 53/0423 (2013.01) [B01D 53/0446 (2013.01); B01D 53/0454 (2013.01); B01J 20/28052 (2013.01); B01J 20/3491 (2013.01); C01B 3/56 (2013.01); F17C 5/06 (2013.01); B01D 2256/16 (2013.01); B01D 2257/20 (2013.01); B01D 2257/30 (2013.01); B01D 2259/40003 (2013.01); B01D 2259/402 (2013.01); C01B 2203/043 (2013.01); C01B 2203/0485 (2013.01); F17C 2205/0323 (2013.01); F17C 2205/0352 (2013.01); F17C 2221/012 (2013.01); F17C 2227/0135 (2013.01); F17C 2265/065 (2013.01); F17C 2270/0168 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A hydrogen gas supply apparatus comprising:
a compressor configured to compress hydrogen gas, wherein the compressor uses a piston and a cylinder to compress the hydrogen gas;
a pressure accumulator configured to accumulate the hydrogen gas compressed by the compressor;
a first adsorption part disposed between the compressor and the pressure accumulator, and configured to include a first adsorbent which adsorbs impurities mixed in the hydrogen gas discharged from the compressor;
a first valve disposed in a first gas supply pipe between the compressor and the first adsorption part;
a second valve disposed in a second gas supply pipe between the first adsorption part and the pressure accumulator;
a return pipe configured to branch from the first gas supply pipe between the first valve and the first adsorption part and connect to an upstream side of the compressor;
a second adsorption part disposed at the return pipe and configured to include a second adsorbent which adsorbs the impurities;
a third valve disposed at an upstream side of the second adsorption part at the return pipe;
a control apparatus configured to control opening and closing of the first valve, the second valve, and the third valve; and
a cylinder leak line connecting the return pipe and the cylinder at an upstream side of a gas inlet of the second adsorption part and a downstream side of the third valve.