2nd Oxyfuel Combustion Conference The OXYCFB300 Compostilla Project: Technological Development

Vicente Cortés a*, Monica Lupion a, Pedro Otero a, Jorge Martínez-Jubitero b, Juan C Ballesteros b, Arto Hotta c, Antonio Castilla d

a Fundación Ciudad de la Energía CIUDEN, II Avenida de Compostilla nº2 24400 Ponferrada, b Generación S.A. C/ Ribera del Loira 60 28042 , Spain c Foster Wheeler Energia Oy, Relanderinkatu 2, 78201 Varkaus, Finland d Foster Wheeler ES, c/ Gabriel García Márquez, 2 28232 Las Rozas Madrid, Spain

Keywords: CCS demonstration project, Circulating Fluidised Bed, Oxycombustion

1. Introduction

The OXYCFB300 Compostilla Project is based on a Carbon Capture and Storage (CCS) integral commercial size demonstration project, covering the entire CO 2 chain: capture, transport and storage. The Project is one of the 6 selected CCS EU demonstration projects co-funded by the European Energy Programme for Recovery (EEPR) of the European Commission.

The overall Project is based on a future 300 MW e Circulating Fluidised Bed (CFB) Supercritical Oxycombustion plant, with dense phase CO2 transport line and final underground CO 2 storage in a deep geological formation.

This technology will be initially tested on a first of its class 30 MW th boiler in CIUDEN’s new Technology Centre for CO 2 Capture and Transport (TCCT) located in Cubillos de (León), close to ENDESA’s Compostilla Power Station in the Northwest of Spain. The pilot testing will provide the knowledge needed to further scale the technology to demonstration size (300 MW e), once a positive final investment decision is made.

The Compostilla EEPR Project is lead by a well balanced consortium of ENDESA, CIUDEN and FOSTER WHEELER. All three consortium members are dedicated and commited to the technology development and promoting the final Project stage in order to achieve the successful commercialization of this promising CCS technology.

The OXYCFB300 Compostilla Project consortium

* Corresponding author. Tel.: +34 987456323; fax: +34 987 419 570. E-mail address : [email protected]. 2

The Project has been divided into two phases to significantly reduce the economic and technical risks of this cutting edge CCS demonstration Project: - Phase I. Technology Development (2009-2012) - Phase II. Construction of the Demo Project Infrastructure (2013- 2015) The main target of the OXYCFB300 Compostilla Project is to validate a fuel flexible and competitive CCS technology at industrial level for a wide range of fuels: raw , pet-coke, and biomass. This project supports the European strategy for accelerating the deployment of CCS for comba ting climate change , as committed by the EU, and its member states. This paper describes technical characteristics and activities related to the Phase I of the OXYCFB300 Compostilla Project.

2. Technical description

The OXYCFB300 Project will use Oxycombustion technology based on Circulating Fluidised Bed (CFB) boiler technology. The applied configuration (i.e. CFB boiler combined with oxy-combustion) expects to demonstrate significant advantages, such as the potential to use a wide range of fuel types, with furnace controlled temperatures and high combustion efficiency; as well as low NOx, SO 2 and CO emissions.

Flow-chart of the oxycombustion and CO 2 capture process

Phase I of the OXYCFB300 Compostilla Project includes the construction and operation of a pilot scale Oxy-Circulating

Fluidized Boiler, an innovative technology for CO2 capture, in CIUDEN’s Technology Centre for CO 2 Capture and Transport (TCCT), in which the Oxycombustion technology will be tested and validated. CIUDEN TCCT is under construction in the vicinity of ENDESA’s Compostilla PS in Cubillos de Sil (Leon, Spain). The commissioning of the OxyCFB 30 MWth installation is planned by July 2011. FOSTER WHEELER is the boiler provider of the Flexi-Burn® Circulating Fluidised Bed units for the TCCT and future Demo plant. The Phase I scheduled activities will provide project with valuable experience and technical support for Phase II. By mid 2012, contingent on a positive Final Investment Decision (FID), construction of the 300MWe integrated commercial demonstration plant will be started. The FID will be based on the knowledge and results obtained from Phase I, and the final permitting, financial and economical boundary conditions, allowing the Project to proceed to its Phase II.

Author name / Energy Procedia 00 (2011) 000–000 3

CIUDEN TCCT in the vicinity of ENDESA’s Compostilla Power Station (shown at the rear of the photo)

3. CCS Value chain

As above-mentioned, the Compostilla Project target is to demonstrate and validate Oxy-CFB technology at industrial scale. Design parameters of the capture facility include an Oxy-CFB supercritical boiler and a wide range of fuels, from domestic to imported and biomass. The following Table summarizes the main parameters of the projected power plant performance.

Parameter Oxy Mode

Gross power output (MWe) 323

Boiler efficiency (%, LHV) 94.3

CO 2 emission (g/kWh-net) 97

CO 2 capture ratio (%) 91

CO 2 captured in the first 5 years of operation (Mt) ~ 5

OXYCFB300 Compostilla Project: Power plant performance (Preliminary)

The CO 2 captured in the Phase II from the Power Plant will be transported by an underground pipeline of approximately 135 km, to the storage facility. The average amount of CO2 captured and transported at around 120 bar pressure is estimated on 5,500 t/day. The targeted reservoir for the OXYCFB300 Project are deep geological stable formations in Mesozoic sedimentary sequences that are covered by non-permeable formations that act as an efficient seal cap.

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3-D view of the OXYCFB300 Compostilla Power Plant

4. Schedule

Main activities and actions planned within the EEPR-Phase I of the Compostilla Project are indicated in the Figure below.

2009 2010 2011 2012 2015

TECHNOLOGY DEVELOPMENT CONSTRUCTION PERIOD

FEED

ECON & RISK PHASE I ASSESS. STUDIES PHASE II STUDIES G. CIUDEN OXY 30 MW CANMET th OXY CFB 300 CONSTRUCTION 1MW th REF. PLANT TESTS CAPTURE PRELIMINARY CIUDEN TDP&TESTS PIPELINE PERMITTING STUDIES SINGULAR STUDIES AND CONSTRUCTION

TANSPORT TDP TESTS & PRELIMINARY MONITORING CHARACTERIZATION EXTENSIVE SUBSURFACE SITE CONSTRUCTION & CHARACTERIZATION MONITORING

STORAGE KNOWLEDGE SHARING K.S FINALFINAL INVESTMENTINVESTMENT DECISIONDECISION

Timeframe of the Compostilla OXYCFB300 Project

More info: www.compostillaproject.eu Project Compostilla is co-financed by the European Union's European Energy Programme for Recovery programme. The sole responsibility of this publication lies with the author. The European Union is not responsible for any use that may be made of the information contained therein.