PRESSURE SWING ADSORPTION HYDROGEN MANUFACTURING APPARATUS

WIPO Patent Application WO/2018/168985

A1

Provided is a pressure swing adsorption hydrogen manufacturing apparatus capable of improving a product recovery rate while preventing product purity from being reduced. A process control unit P controls operation of adsorption towers 1 generating a product gas by causing an adsorbent to adsorb components-to-be-adsorbed of a material gas other than hydrogen components during a sequential repetition of an adsorption step, a pressure equalizing emission step, a desorption step, and a pressure recovery step. The process control unit P is configured to control operation of the adsorption towers 1 in a configuration that executes, at an initial stage of a unit treatment period, a pre-stage pressure equalization step for feeding the gas inside the adsorption tower 1 for the pressure equalizing emission step to the adsorption tower 1 for the pressure recovery step, and that executes, at a final stage of the unit treatment period, a post-stage pressure equalization step for feeding the gas inside the adsorption tower 1 for the pressure equalizing emission step to the adsorption tower 1 for the desorption step, the configuration further executing, as the pressure recovery step, a pressurization step for feeding and pressurizing a product gas H subsequently to the pre-stage pressure equalization step, with the pressurization step being executed overlapping the post-stage pressure equalization step.

ASONUMA HIDAKA (JP)
SHIMIZU TSUBASA (JP)

PCT/JP2018/010134

September 20, 2018

March 15, 2018

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OSAKA GAS CO LTD (JP)

C01B3/56; B01D53/047

US20110005391A1	2011-01-13
JP2007209868A	2007-08-23
JPH0716447A	1995-01-20
JP2015038015A	2015-02-26

See also references of EP 3597592A4

R&C IP LAW FIRM (JP)

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