A CO2 closed-loop transport test rig has been designed, constructed and operated by CIUDEN. Its design covers a wide range of operating conditions compatible with the recommended general guidelines for CO2 transport. The transport rig aims to cover the aspects considered of interest in the field of CO2 transport being a facility close to a real CO2 transport infrastructure. The facility also aims to be a reference at global level for terrestrial transport of CO2 though pipelines. CIUDEN´s CO2 Transport Test Rig has a semi-industrial size. In order to operate the test rig in thermal conditions similar to those expected in CO2 transport pipelines (mainly buried), the facility is located inside a thermal isolated building with temperature control. The building maintains the temperature constant for the experimentation, preventing the effects of ambient temperature and thus approaching the isothermal transport conditions that are typical of the buried sections of a pipeline. The building is made with concrete-isolation sandwich material with an effective ventilation system to avoid sub-oxygenated atmospheres. The CO2 Transport Test Rig includes the following main units:
CIUDEN´s CO2 Transport Test Rig will provide valuable data as a basis for the design, maintenance and operation of industrial CO2 pipelines. The results obtained will help to design a safe scale-up of the CO2 transport technology. The rig is highly monitored. In the Control System, around 150 variables are gathered. These signals mainly comprise temperature, flow-rate and pressure measurements as well as fluid properties such as density and viscosity. Several continuous online analysers have been set in order to control the composition of the CO2 stream within the installation.
The CIUDEN Transport Test Rig will allow testing the effects on pipeline performance of the following parameters: CO2 composition, materials behaviour and process performance (corrosion, pressure and temperature changes, pressure drops in pipelines and accessories, etc). The uniqueness of the installation is its size and the ability to make dynamic tests on certain CO2 flow in conditions similar to those of a real pipe that would allow the scale up of the results. Current performed and committed tests include depressurization and impure CO2 streams.
Further services at the same location are offered: fully equipped laboratories and specialized operating staff. Offices and laboratories (3,500m2 ) and contractors offices and workshop (1,300m2 ), Personal Protective Equipment, Warehousing for tested equipment and Maintenance Shops (mechanical, electrical and Inspection and Control), IT support, offices and testing space. Equipment and instrumentation behaviour, depressurization, flow assurance, material testing and any other safety CO2 transport operations can be arranged.