公开(公告)号：US20200368667A1

公开(公告)日：2020-11-26

申请号：US16985733

申请日：2020-08-05

Applicant: ENEOS Corporation

Inventor： Nanako OBATA ,  Tadashi SEIKE ,  Seiji MAEDA ,  Daisaku TATEISHI ,  Ai MINODA

IPC: B01D53/047 ,  B01J20/18 ,  B01J20/20 ,  B01J20/28 ,  B01J20/34 ,  C01B3/56

Abstract: According to one aspect of the present invention, a pressure swing adsorption (PSA) device includes an adsorption tower configured to introduce hydrogen gas and adsorb impurity components in the hydrogen gas by using a pressure swing adsorption (PSA) method, an adsorbent of one layer made of activated carbon or an adsorbent of two layers in which activated carbon and zeolite are stacked being disposed in the adsorption tower, the hydrogen gas containing carbon monoxide (CO) of 0.5 vol % or more and 6.0 vol % or less and methane (CH4) of 0.4 vol % or more and 10 vol % or less as the impurity components; and a densitometer configured to detect a concentration of CO in the hydrogen gas discharged from the adsorption tower, wherein the impurity components are adsorbed and removed to cause the CO concentration measured by the densitometer to fall below a threshold.

公开(公告)号：US20220018498A1

公开(公告)日：2022-01-20

申请号：US17441900

申请日：2020-03-25

Applicant: ENEOS CORPORATION

Inventor： Shigeru ASAI ,  Tadashi SEIKE ,  Shuuichi SUZUKI ,  Nanako OBATA ,  Takayuki ITABASHI ,  Seiji MAEDA

IPC: F17C13/02 ,  F17C5/06 ,  G06Q50/06

Abstract: A hydrogen gas inventory acquisition system configured to acquire an inventory of a hydrogen gas in a plurality of off-site hydrogen stations, includes a log data creation device configured to create log data obtained by recording each parameter data sampled at an individual sampling timing set to each hydrogen station of the plurality of off-site hydrogen stations in combination with identification information of each of the plurality of off-site hydrogen stations from a plurality of parameter data measured by a plurality of meters disposed in the each hydrogen station to calculate an inventory of the hydrogen gas in the each hydrogen station; an inventory calculation device configured to calculate the inventory of the hydrogen gas at an individual calculation timing set to the each hydrogen station by using the log data; and a sorting device configured to acquire inventory data of the hydrogen gas in the each hydrogen station.