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type     June, 2005

Vol 1 Chapter 6: Post-Combustion Seperation and Capture Baseline Studies for the CCP Industrial Scenarios

Paul Hurst and Graeme Walker

Abstract: The aim of the CO2 Capture Project is to develop new and novel technologies that significantly reduce the cost of capturing and storing CO2. The project has three distinct elements; pre-combustion de-carbonisation, the use of oxygen-rich combustion systems and post-combustion CO2 capture. In order to evaluate any new or novel technology, baseline studies are required that quantify the current best available technology. This report summarises two such studies for the post-combustion CO2 capture element based on two BP-owned or part-owned operating facilities:

  • The Central Gas Facility, Prudhoe Bay, Alaska—representative of CO2 recovery from the exhaust gas of multiple simple cycle gas turbines.
  • BP’s Grangemouth Complex, Scotland—representative of CO2 recovery from multiple flue gas emissions from a refinery or petrochemical complex heaters and boilers.

The studies have been conducted by Fluor. They detail process designs and cost estimates to capture approximately 1.8–2 million tonnes of CO2 per year and deliver the captured CO2 to the battery limits of the particular site at a pressure of 220 barg and essentially water-free.

The specific conclusions drawn from the two studies are that:

  • The capture of such large amounts of CO2 is technically feasible.
  • The installed costs are very high.
  • Prudhoe Bay capital cost is estimated at $1.659 billion, equivalent to $130 per tonne of emitted CO2 avoided, and
  • Grangemouth capital cost is estimated at $476 million, equivalent to $50–60 per tonne of CO2 captured. This range relates to the anticipated variation in operating costs.

The study assesses generic issues that will be common to any retro-fit post-combustion CO2 Capture Project, and provides a suitable baseline against which developing technologies can be evaluated.

Carbon Dioxide Capture for Storage in Deep Geologic Formations – Results from the CO2 Capture Project Capture and Separation of Carbon Dioxide from Combustion Sources - Volume 1
Edited by:
David C. Thomas, Senior Technical Advisor, Advanced Resources International Inc, USA

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