0B004

Plant for the production of heavy water, deuterium or deuterium compounds, as follows:

Water-hydrogen sulphide exchange plants;

Ammonia-hydrogen exchange plants;

Combined Electrolysis and Catalytic Exchange (CECE) plants;

Combined Industrial Reforming and Catalytic Exchange (CIRCE) plants;

Bithermal Hydrogen-Water exchange (BHW) plants;

Equipment and components, as follows:

Water-hydrogen sulphide exchange towers with diameters of 1,5 m or more, capable of operating at pressures greater than or equal to 2 MPa;

Single stage, low head (i.e., 0,2 MPa) centrifugal blowers or compressors for hydrogen sulphide gas circulation (i.e., gas containing more than 70 % by weight hydrogen sulphide, H2S) with a throughput capacity greater than or equal to 5 m^3/s when operating at pressures greater than or equal to 1,8 MPa suction and having seals designed for wet H2S service;

Ammonia-hydrogen exchange towers greater than or equal to 35 m in height with diameters of 1,5 m or greater capable of operating at pressures greater than 15 MPa;

Tower internals, including stage contactors, and stage pumps, including those which are submersible, for heavy water production utilising the ammonia-hydrogen exchange process;

Ammonia crackers with operating pressures greater than or equal to 3 MPa for heavy water production utilising the ammonia-hydrogen exchange process;

Not used;

Catalytic burners for the conversion of enriched deuterium gas into heavy water utilising the ammonia-hydrogen exchange process;

Complete heavy water finishing units, upgrade systems, or columns with diameters of 0.1 m or greater therefor, for the upgrade of heavy water to reactor-grade deuterium concentration

Ammonia synthesis converters or synthesis units specially designed or prepared for heavy water production utilising the ammonia-hydrogen exchange process.

Complete columns or towers specially designed or prepared for hydrogen isotope exchange having all of the following: 1. Packed with random or structured wet-proofed platinised catalysts; 2. Constructed of carbon steel or stainless steel; 3. Capable of operating with pressure in the range of 0.1 to 4 MPa; and 4. Capable of operating at temperatures in the range of 293 K (20°C) to 473 K (200°C).