Evaluating the Costs of Retrofitting CO₂

Publication Overview

The purpose of this report is to present a reference document that describes the technical basis and key assumptions to be used in evaluating the performance of the integrated oil refinery without and with CO₂ capture. The engineering and design basis, and various assumptions on feedstock, additives, products and by-products, and the specification of the CO₂ that are outlined in this report will be used as a reference for developing the refinery configurations to be developed in the study which will be published once the project is completed. Where applicable, information retrieved from IEAGHG document “Criteria for Technical and Economic Assessment of Plants with Low CO₂ Emissions” Version C-6, March 2014, are included.

Publication Summary

In the power generation industry, the CO₂ avoided cost is defined as the difference between the levelised cost of electricity (LCOE) with and without CCS divided by the difference in nominal climate impact of electricity without and with CCS as shown below. In this case, the CO₂ avoided needs to be calculated based on both the power plant with and without CCS as the plant net power output or the plant fuel in-take is modified when CCS is included.

 However in the case of CCS from industry (refinery, cement, steel, etc.), if the implementation of CCS does not modify the product outputs of the plant and the additional cost linked to CCS implementation can reported separately from the main plant.

In the ReCap project, the refinery input (number of barrels of crude and crude mix) and output (product quantity and mix) are assumed to remain identical when CO₂ capture is added.The cost of the refinery is reported without CCS and the cost of CO₂ capture and conditioning is calculated solely based on the additional cost generated by the implementation of the CO₂ capture and conditioning.