Hydrogen separation and purification units

Gas-liquid separators and purification units 200 – 5000 Nm³/h, H₂ purity ≥ 99.999 %.

All hydrogen equipment·Made by CRRC Zhuzhou Institute
Hydrogen separation and purification units

Gas-liquid separation units (GLSU) take the gas/electrolyte mixture from the electrolyzer and deliver separated hydrogen and oxygen cooled to ≤ 40 °C. Hydrogen purification units (HPU) then raise hydrogen purity to ≥ 99.999 % (V/V) with a dew point of ≤ -70 °C. They come in dedicated series for ALK (suffix A) and PEM (suffix P) electrolyzers, pre-assembled in the factory for fast on-site installation.

200 – 5000 Nm³/h

H₂ ≥ 99.999 %

≤ -70 °C

Features

  • Hydrogen purity ≥ 99.999 % (V/V) after purification, dew point ≤ -70 °C
  • Capacities from 200 to 5000 Nm³/h, for a single electrolyzer or electrolyzer groups
  • Factory pre-assembly and multi-module transport without over-width loads
  • Accurate liquid-level and pressure regulation, safety interlocks

Technical parameters

Gas-liquid separation unit – ALK series

ModelGLSU-1000AGLSU-2000AGLSU-4000AGLSU-5000A
Rated hydrogen processing capacity1000 Nm³/h2000 Nm³/h4000 Nm³/h5000 Nm³/h
Rated oxygen processing capacity500 Nm³/h1000 Nm³/h2000 Nm³/h2500 Nm³/h
Hydrogen purity≥ 99.8 % (V/V)≥ 99.8 % (V/V)≥ 99.8 % (V/V)≥ 99.8 % (V/V)
Oxygen purity≥ 98.5 % (V/V)≥ 98.5 % (V/V)≥ 98.5 % (V/V)≥ 98.5 % (V/V)
Hydrogen outlet temperature≤ 40 °C≤ 40 °C≤ 40 °C≤ 40 °C

Hydrogen purification unit – ALK series

ModelHPU-1000AHPU-2000AHPU-4000AHPU-5000A
Rated hydrogen processing capacity1000 Nm³/h2000 Nm³/h4000 Nm³/h5000 Nm³/h
Hydrogen purity≥ 99.999 % (V/V)≥ 99.999 % (V/V)≥ 99.999 % (V/V)≥ 99.999 % (V/V)
Hydrogen dew point≤ -70 °C≤ -70 °C≤ -70 °C≤ -70 °C

Gas-liquid separation unit – PEM series

ModelGLSU-200PGLSU-500P
Rated hydrogen processing capacity200 Nm³/h500 Nm³/h
Rated oxygen processing capacity100 Nm³/h250 Nm³/h
Hydrogen purity≥ 99.9 % (V/V)≥ 99.9 % (V/V)
Oxygen purity≥ 99 % (V/V)≥ 99 % (V/V)
Hydrogen outlet temperature≤ 40 °C≤ 40 °C

Hydrogen purification unit – PEM series

ModelHPU-200PHPU-500P
Rated hydrogen processing capacity200 Nm³/h500 Nm³/h
Hydrogen purity≥ 99.999 % (V/V)≥ 99.999 % (V/V)
Hydrogen dew point≤ -70 °C≤ -70 °C

Other CRRC equipment

IGBT hydrogen production power supplies

IGBT hydrogen production power supplies

IGBT rectifiers 3 – 22 MW, response ≤ 0.1 s, power factor ≥ 0.99.

3 – 22 MW

0 – 40 000 A

≤ 0.1 s

Alkaline (ALK) electrolyzers

Alkaline (ALK) electrolyzers

ALK electrolyzers of 1000, 2000 and 4000 Nm³/h, DC consumption ≤ 4.0 kWh/Nm³.

1000 – 4000 Nm³/h

≤ 4.0 kWh/Nm³

20 – 110 %

PEM electrolyzers

PEM electrolyzers

Proton-exchange-membrane electrolyzers of 200 and 500 Nm³/h, 5 – 130 % load range.

200 – 500 Nm³/h

≤ 4.3 kWh/Nm³

5 – 130 %

Energy management and process control systems

Energy management and process control systems

EMS for dynamic balancing of renewable generation and electrolysis, plus DCS/PLC & SIS process control.

EMS

DCS / PLC & SIS

HAZOP