1. The first pressure is greater than the second pressure on an absolute pressure scale.

2. The absorption is effected by a sub-cooled absorbent at a first cryogenic temperature and a first pressure.

3. Nominal working pressure(s) and if downstream of the first pressure regulator, maximum allowable working pressure(s) # a

4. Nominal working pressure(s) and if downstream of the first pressure regulator, maximum allowable working pressure(s): ... MPa

5. Also provided is an actuating device (42) for moving the first pressure plate and/or the second pressure plate.

6. The invention relates to a spud carriage biasing system comprising a first hydraulic tensioning cylinder (10); a first low pressure tensioning accumulator (15) in fluid communication with a first pressure chamber (11) comprised in the first cylinder (10); a second hydraulic tensioning cylinder (20); and a second low pressure tensioning accumulator (25) in fluid communication with a second pressure chamber (21) comprised in the second cylinder (20).