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Automated Skid Mounted Chlorine Plants

Modular Solutions for the production of chlorine, caustic soda, hydrogen and their derivatives (Bleach, Hydrochloric Acid)

To serve the market for the onsite production of chlorine, caustic soda and their derivatives, UHDENORA has designed, together with AkzoNobel and Uhde, an innovative and automated electrolysis plant, with a rated production capacity of 15,000 tons per year of chlorine, supplied as skid mounted units.

The engineering standardization plays a key role in reducing the project costs, allowing fast project implementation since skid procurement and civil activities at site can run in parallel since the beginning.

The possibility to install only the skid units needed for the specific markets (i.e. salt to bleach and hydrochloric acid) increase the flexibility for this product.



Figure 1
Skid Mounted Electrolysis Group installation
(2011 – Germany)
Figure 2
Carbon Filters and
Ion Exchange Resins


Plant Characteristics

Nominal plant capacity:

- 50.7 MTPD NaOH 100%
- 45 MTPD Cl2 100%
- 14.800 NM3/ D H2 100%)

Salt quality: vacuum salt
Turn down ratio: 100 % to 25%

Optional sections:

- Primary brine purification for the use of raw salt
- Hydrochloric acid synthesis
- Caustic concentration


Key Advantages

1. Feasibility Studies

  • Easy price calculation for skids due to standardized engineering, thus reducing the risk of extra budget costs during the plant construction.
  • Skids from UHDENORA are an high percentage of the Total Installed Costs versus items on Major Equipment List in Conventional path.
  • Limited cost estimating and management of loose materials at site.

2. Site Activities

  • Reduced civil construction works.
  • Reduced need for skilled personnel at site for erection.
  • Civil construction are made in parallel to skid construction to reduce project implementation time.
  • Simple skid connection activities at site.

3. Safety and Quality

  • Shop fabrication of skids for high quality construction.
  • Pre testing of equipment and instrumentation to increase safety.
  • State of the art Uhde BM 2.7 single element electrolyzer.
  • Skids are shipped in standard containers for cheap transportation costs.

4. Plant Operation

  • Highly automated plant to reduce the number of operators.
  • Optimized spare part inventories due to plant standardization.
  • Use of UHDE EVALUATORTM monitoring system for predictive maintenance and optimization of plant performances.

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