Croft Engineering Services is
working with two leading universities
to help create a chemical-free system
for removing carbon dioxide from
the air inside underwater capsules.

The smart process is being developed
using thousands of tiny pieces of fine
wire mesh, called Dixon Rings,
supplied by Croft Engineering
Services’ manufacturing centre, in
Warrington.

Neil Burns, partner of Croft
Engineering Services, said: “Dixon
Rings are based on technology
developed in 1948 – due to their size,
the common 3mm ring has a surface
area of 2378m3 which, along with a
void space of over 90% and HETP as
low at 5.88cm, means they offer the
perfect packing for a number of
applications, including submarines
in which carbon dioxide can be fatal
if left to saturate the air.”