This unit of competency covers the skills and knowledge required to operate and monitor a liquid extraction system and ancillary equipment.Liquid extraction typically applies to the process of extracting higher molecular weight hydrocarbons from lower molecular weight hydrocarbons (e.g. condensate from gas).This unit of competency includes all such items of equipment and unit operations which form part of the liquid extraction system. A unit/system comprises two or more components of plant/equipment that are operated together to produce product, including as appropriate to the facility:absorber towerexpanders/compressorslube oil systeminstrumentationcold separatorpumpsfansrefrigeration systems or cryogenic systemstrayscolumnsheat exchangers.This unit of competency applies to operations technicians who are required to demonstrate a significant understanding of the process and the equipment operation in order to identify and rectify operational problems, perform isolations, start-up and shutdown procedures, and operate, monitor and maintain equipment.A typical example of liquid extraction occurs in a natural gas processing plant and contains an absorber, de-ethaniser tower, turbo expander compressor, cold separator vessel and various plate fin type heat exchangers. This unit of competency applies to an individual operating independently in a plant with local control or in liaison with the control room operator in a plant with a centralised control panel, such as distributed control system (DCS) type controls. In the case of large complex plant, the operations technician would be part of a team during start-up and shutdown procedures. This unit of competency applies to an individual working alone or as part of a team or group and working in liaison with other shift team members and the control room operator, as appropriate.This unit of competency does not require the operation of a central control panel. No licensing, legislative or certification requirements apply to this unit at the time of publication.