Cold boxes being precooled in preparation for gas

JSE-listed Renergen reported on May 3 that it was making “strong” progress in terms of the commissioning of Phase 1 of the Virginia gas project, which comprises exploration and production rights of 187 000 ha of gas fields across Welkom, Virginia and Theunissen, in the Free State. Cold boxes – which are self-supporting structures that protect cryogenic equipment such as heat exchangers, core-in-drums, distillation columns, piping, valves and instrumentation – are currently being purged and pre-cooled using liquid nitrogen, which is an important process in preparing the units for acceptance of gas from