Flow assurance & control philosophy: Rotterdam Opslag en Afvang Demonstratieproject. Special report for the Global Carbon Capture and Storage Institute

Topic(s): Carbon capture use and storage (CCUS), CO₂ storage, CO₂ transport, Health safety and environment

One of the key challenges for a large scale CCS demonstration project, like the ROAD project in the Netherlands, is to safely and efficiently operate the CO₂ stream of an integrated CCS chain. For ROAD this means: capturing the CO₂ from the flue gases of a coal-fired power plant, compressing and transporting the CO₂ through a 25 km pipeline to an offshore platform and injecting the CO₂ into a depleted gas reservoir 3.5 km below the sea bed.

This special report on the ‘Flow Assurance and Control Philosophy’ of the ROAD project provides an insight into the proposed control and operating systems for the CO₂ stream of the integrated CCS chain in steady state, shutdown and start-up conditions.

Although it has not been practiced before, the Flow Assurance Study (FAS) conducted by ROAD has clearly shown that filling a reservoir of (very) low pressure to an end pressure of 300 bar is in practice possible, but one has to study the behaviour of CO₂ in all its thermo-dynamic aspects with the parameters of the physical configuration of the transport system.

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