Eneos Corporation

Tadashi Seike

Daisaku Tateishi

Seiji Maeda

Toshio Tezuka

Kazumi Maehara

Motoyoshi Fukuoka

Hirofumi Nishio

Shigeru Asai

Shinji Oshima

Akihiko Fukunaga

Nanako Obata

Shuuichi Suzuki

Ai Minoda

Takayuki Itabashi

A hydrogen gas supply apparatus according to one aspect of the present invention includes a compressor configured to compress hydrogen gas and supply the hydrogen gas compressed to a pressure accumulator which accumulates the hydrogen gas, an adsorption column disposed between the discharge port of the compressor and the pressure accumulator, and configured to include an adsorbent for adsorbing impurities in the hydrogen gas discharged from the compressor, and a plurality of valves disposed at the gas inlet/outlet port side of the adsorption column, being at a discharge port side of the compressor, and configured to be able to seal the adsorption column, wherein the space in the adsorption column is sealed using the plurality of valves such that the inside of the adsorption column is maintained to have a high pressure by the hydrogen gas compressed in the case where the compressor is stopped.

Hydrogen gas supply apparatus and hydrogen gas supply method

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.

Hydrogen gas inventory acquisition method, hydrogen gas inventory acquisition device, hydrogen gas inventory acquisition system, and hydrogen gas inventory management system

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 (CH) 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.

Pressure swing adsorption (PSA) device and pressure swing adsorption method

According to one aspect of the present invention, a hydrogen production apparatus includes a hydrogen production mechanism configured to produce a hydrogen gas from a raw material by using a catalyst; and an operation control circuit configured to input a parameter value as an index indicating a state of the catalyst, and configured to control an operation maximum load of the hydrogen production mechanism to be variable in correspondence with the parameter value.

Hydrogen production apparatus and hydrogen production method

A hydrogen gas supply apparatus includes a compressor configured to compress hydrogen gas and supply the compressed hydrogen gas toward a pressure accumulator which accumulates the hydrogen gas, a first adsorption column disposed between the discharge port of the compressor and the pressure accumulator and configured to include the first adsorbent for adsorbing impurities in the hydrogen gas discharged from the compressor, a first valve disposed between the discharge port of the compressor and the gas inlet port of the first adsorption column, a second valve disposed between the gas outlet port of the first adsorption column and the pressure accumulator, a return pipe configured to branch from between the first valve and the gas inlet port of the adsorption column and connect to the suction side of the compressor, and a second adsorption column disposed in the middle of the return pipe.

A hydrogen production supply system that produces hydrogen gas to be supplied to a hydrogen storage tank, the hydrogen production supply system including a control circuit configured to control an operation load ratio of the hydrogen production apparatus to a predetermined operation load ratio, to increase the operation load ratio of the hydrogen production apparatus to a first operation load ratio larger than the predetermined operation load ratio at first timing, and to decrease the operation load ratio of the hydrogen production apparatus to the predetermined operation load ratio from the first load operation ratio at second timing, wherein an increase in the operation load ratio at the first timing takes precedence over a decrease in the operation load ratio at the second timing.

Operation method for hydrogen production apparatus and control device for hydrogen production apparatus

An operation method is provided for a hydrogen production apparatus that is disposed in a hydrogen station and produces hydrogen gas to be supplied to a fuel cell vehicle (FCV) arriving at the hydrogen station. The operation method includes starting up a hydrogen production apparatus up to a first operation load ratio preset for a rated operation. The operation method includes increasing an operation load of the hydrogen production apparatus to a second operation load ratio, which is larger than the first operation load ratio, at first timing associated with an arrival of the FCV, and decreasing the operation load of the hydrogen production apparatus to a third operation load ratio, which is smaller than the second operation load ratio, at second timing associated with a completion of hydrogen filling into the FCV.

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Tokyo, Japan

Tadashi Seike