H2Tech - Electrolyzer Handbook 2022 - 57

2022 ELECTROLYZER HANDBOOK
PRODUCT CATEGORIES
COMPANY INDEX
ALKALINE
DQ1000
DESCRIPTION: John Cockerill's DQ1000 is a
pressurized electrolyzer based on alkaline electrolysis
technology and offers a single 5-MW stack. DQ100
is a compact bipolar filter press stack unit and is
delivered as a complete pre-assembled module for easy
installation onsite. Hydrogen is generated efficiently
at high pressure and there is no need for additional
compression for most applications. This represents
a significant saving in terms of operating cost and
maintenance and guarantees continuous and sustained
gas production. A large stack size enables low capital
and operational expenditures, while minimizing the
number of installed units and footprint optimization.
Hydrogen generated in the electrolyzer enters a
hydrogen-lye separator, where the gas and the lye are
separated. Hydrogen leaving the gas-lye separation
system is saturated with water at 40°C. If a higher
purity is required, the residual oxygen is removed in a
deoxydizer and eventually dried in a dryer thereafter.
ADVANTAGES/KEY FEATURES: DQ1000 is a highly
reactive electrolyzer, well suited to both main grid and
renewable electricity, wind and solar. Key benefits of
this electrolyzer include:
* Large stack size for low CAPEX and OPEX
* Electrical consumption gain
* High reactivity to varying load
* Low carbon footprint
* Compressor free installation
* Minimum maintenance
* Proven technology.
SPECIFICATIONS:
* Capacity: 5 kW to 5 MW
* Stack power consumption: 4.16 kWh/Nm3-
4.66 kWh/Nm3 of hydrogen
* Production rate: 1,000 Nm3/h (2,136 kg/d)
* Hydrogen purity before purification system:
99.8%
* Hydrogen purity after treatment:
99.999% (fuel cell grade)
* Flow range: 40%-100 %
* Electrolyte: 30% KOH aqueous solution
* Demineralized water consumption:
0.92 L/ Nm3 of hydrogen
* Water conductivity required: < 1µS/cm
(demineralization process available as an option)
* Delivery pressure: Typically, 30 barg without
compression (16 barg-50 barg, depending on
stack size)
* Life expectancy: About 20 yr
* Optimal runtime: About 12 yr
* Degradation rate: < 1%/yr
* Footprint: Approximately 400 m2
* Stack dimension: 6.9 m x 2.2 m x 2.2 m
* Stack weight: 58,000 kg.
APPLICATIONS/INDUSTRIES SERVED: Industries
served include petrochemicals, refining, transportation/
mobility, synthetic fuels, ammonia/fertilizer, steel/
metals production, renewable energy grid, chemical/
industrial processes, upgrading biomass/biofuel/
biomethane/biomethanol production, power
generation, feedback to grid power, commercial
distributed gases, thermal processing, glassmaking,
non-ferrous alloys, electronic chip manufacturing,
cement and various other applications.
ELECTROLYZER IN-UNIT ACCESSORIES: Purifier,
deoxidizer, dryer, water separator, hydrogen storage,
compression system, transformer and rectifier, water
demineralization unit and hydrogen refueling stations.
Copyright © 2022 Gulf Energy Information. All rights reserved.
SERVICES PROVIDED: Installation, maintenance and/
or repair, parts replacement, membranes and hydrogen
storage solutions.
SUPPLIER: John Cockerill
WEBSITE: h2.johncockerill.com
CONTACT: Maxime Bebronne
EMAIL: hydrogen@johncockerill.com
https://www.gulfenergyinfo.com/h2tech http://h2.johncockerill.com/en/
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