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RU-2026104729-A - SOEC module and SOEC device for hydrogen generation based on a multi-stack core module

RU2026104729ARU 2026104729 ARU2026104729 ARU 2026104729ARU-2026104729-A

Inventors

  • Чжан Вэй
  • Ян Янь
  • ВАН Хунтао
  • ЦЗЯН Жуй
  • СУНЬ Чжаосун

Assignees

  • Чайна Петролиум энд Кемикал Корпорейшн
  • СИНОПЕК ДАЛЯНЬ РИСЕРЧ ИНСТИТЬЮТ ОФ ПЕТРОЛЕУМ ЭНД ПЕТРОКЕМИКАЛС КО., ЛТД.

Dates

Publication Date
20260507
Application Date
20240814
Priority Date
20230816

Claims (20)

  1. 1. A SOEC device for generating hydrogen based on a module with multiple stack cores, comprising
  2. steam generator for generating steam by heating water;
  3. a mixer for mixing cathodic protection hydrogen with steam generated by a steam generator to produce a hydrogen-containing steam mixture;
  4. an air heater for heating air to produce hot air;
  5. an SOEC module comprising a thermal insulation shell and a plurality of electrolysis cell stack cores mounted in the thermal insulation shell, wherein the thermal insulation shell has a module inlet for hot air, a module inlet for a hydrogen-containing steam mixture, a module outlet for oxygen-enriched air and a module outlet for raw hydrogen;
  6. wherein the hydrogen-containing steam mixture exiting the mixer is supplied to the input for the hydrogen-containing steam mixture of the single stack of each core of the stack of electrolysis cells through the input of the module for the hydrogen-containing steam mixture, and the hot air generated by the air heater is supplied to the input for the hot air of the single stack of each core of the stack of electrolysis cells through the input of the module for hot air, and the output of the module for oxygen-enriched air and the output of the module for raw hydrogen are configured to output oxygen-enriched air and raw hydrogen generated by each core of the stack of electrolysis cells, respectively.
  7. 2. The device according to claim 1, further comprising a cabinet mounted on a frame in which a steam generator, a mixer, an air heater and a SOEC module are installed, respectively, and in this cabinet there is a water inlet for supplying water to the steam generator, a cathodic protection hydrogen inlet for supplying cathodic protection hydrogen to the mixer, an air inlet for supplying air to the air heater, a raw hydrogen outlet communicating with the outlet of the raw hydrogen module, and an outlet for oxygen-enriched air communicating with the outlet of the oxygen-enriched air module.
  8. 3. The device of claim 1 or 2, comprising a plurality of SOEC modules, wherein the plurality of SOEC modules comprise a first SOEC module and a plurality of second SOEC modules that communicate via an ejector; wherein the raw hydrogen outlet of the first SOEC module is connected to the air inlet of the ejector; the air outlet of the ejector is connected to the inlet for a hydrogen-containing steam mixture of each of the second SOEC modules; and the raw hydrogen outlet of each of the second SOEC modules communicates with the raw hydrogen outlet, respectively.
  9. 4. The device according to claim 3, further comprising an electric steam heater, wherein the hydrogen-containing steam mixture supplied by the mixer is heated by the electric steam heater and then fed to the input for the hydrogen-containing steam mixture of the first SOEC module and to the input of the ejector nozzle.
  10. 5. The device of claim 3, wherein there are four SOEC modules, including one first module and three second SOEC modules.
  11. 6. The device according to item 1 or 2, further comprising
  12. a first heat exchanger configured to exchange heat between the steam generated by the steam generator and the raw hydrogen produced by the SOEC module; and/or
  13. a second heat exchanger configured to exchange heat between the cathodic protection hydrogen and the raw hydrogen produced by the SOEC module before the cathodic protection hydrogen is introduced into the mixer;
  14. and/or a third heat exchanger configured to exchange heat between the air and the oxygen-enriched air supplied by the SOEC module before the air is introduced into the air heater.
  15. 7. The device according to item 6, further comprising a bypass installed in parallel to the first heat exchanger, the second heat exchanger and the third heat exchanger, respectively.
  16. 8. A device according to any one of claims 1 to 7, wherein a plurality of cores of electrolysis cell stacks are grouped into a plurality of groups, each group comprising a plurality of cores of electrolysis cell stacks connected in series, wherein the outlet for oxygen-enriched air of a single stack of the first core of the electrolysis cell stack in each group is connected to the inlet for hot air of a single stack of the next core of the electrolysis cell stack, and the outlet for oxygen-enriched air of a single stack of the last core of the electrolysis cell stack in each group communicates with the outlet of the module for oxygen-enriched air through a section of a pipe.
  17. 9. The device according to claim 8, in which a backup bypass is installed between the inlet for hot air of a single stack and the outlet for oxygen-enriched air of a single stack of at least some cores of the stacks of electrolysis cells.
  18. 10. An SOEC module for a SOEC device for generating hydrogen, comprising a thermal insulation shell and a plurality of electrolysis cell stack cores installed in the thermal insulation shell, wherein the thermal insulation shell has a module inlet for hot air, a module inlet for a hydrogen-containing steam mixture, a module outlet for oxygen-enriched air and a module outlet for raw hydrogen; in each of the electrolysis cell stack cores there is an inlet for hot air of a single stack, an inlet for a hydrogen-containing steam mixture of a single stack, an outlet for oxygen-enriched air of a single stack and an outlet for raw hydrogen of a single stack; and in the heat-insulating shell, a plurality of pipe sections are installed between the module inlet for the hydrogen-containing steam mixture and each inlet for the hydrogen-containing steam mixture of the single stack, between the module inlet for hot air and the hot air inlets of the single stacks of at least some cores of the stacks of the electrolysis cells, between the module outlet for oxygen-enriched air and the outlets of the single stacks for oxygen-enriched air of at least some cores of the stacks of the electrolysis cells, and between the module outlet for raw hydrogen and each outlet for raw hydrogen of the single stack.
  19. 11. The SOEC module according to paragraph 10, in which
  20. a plurality of cores of stacks of electrolysis cells are grouped into a plurality of groups, wherein each group contains a plurality of cores of stacks of electrolysis cells connected in series, and the outlet for oxygen-enriched air of a single stack of the first core of a stack of electrolysis cells in each group is connected to the inlet for hot air of a single stack of the next core of a stack of electrolysis cells, and the outlet for oxygen-enriched air of a single stack of the last core of a stack of electrolysis cells in each group communicates with the outlet of the module for oxygen-enriched air through a section of a pipe.