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Status of La Pereda 1,7MWt pilot test facility

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Status of La Pereda 1,7MWt pilot test facility for postcombustion CO2 capture by Ca-looping

Andrés Sánchez-Biezma Sacristán - 3rd IEAGHG Network Meeting on High Temperature Solids Looping Cycles, Vienna

3 0 | 0 8 | 1 1endesa Subdirección de Ingeniería e I+D

Status of La Pereda 1,7MWt pilot test facility

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The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013) under GA 241302-CaOling Project and from PCTI Asturias.

Status of La Pereda 1,7MWt pilot test facility for postcombustion CO2 capture by Ca-looping

Status of La Pereda 1,7MWt pilot test facility

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CaOling Project - Development of Calcium looping

CaOling Project started on December 2009 as a three-years project to develop and demonstrate post-combustion calcium looping in a pilot-scale unit which is fully integrated with a power plant.

Partners:

Status of La Pereda 1,7MWt pilot test facility

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Postcombustion carbonate looping concept:

Main advantage: CO2 capture at high temperature Recovery of part of the energy used in the regeneration process.

Concept

Low energy penalty compared with other CO2 capture technologies

Status of La Pereda 1,7MWt pilot test facility

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CaOling Project. Work plan

WP1: Lab-Scale pilot testing

WP2: Sorbent Properties

WP3: Reactor modelling and scale-up tools

WP4: 1,7MWt Plant design and erection

WP5: Experimental campaigns in the 1,7Mw test facility

WP6: Scaling parameters for industrial plant demo

WP7: Coordination and dissemination

Leader Other partners

All

Status of La Pereda 1,7MWt pilot test facility

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24 m

To evaluate and optimise the concept in the 1,7 MW test facility, in operating conditions equivalent to large-scale industrial units and integrated in a commercial plant.

To analyse the controllability and stability of the process

To find the optimum set of operating conditions to minimize sorbent make-up flow cost.

To measure the effects of initial particle size and attrition phenomena in the continuous circulating fluidized bed system.

To analyse the effects of the flue gas impurities in the sorbent performance and the effects of coal ash and sulphur content.

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Height: 15 m

Weight: 131 ton

Made of refractory and Carbon Steel.

Made of Flanged Modules

Double recirculation loop. Recirculation Control flow in loopseal

Fully instrumentalized:

12 Pressure points

10 Temperature points

6 hold points

3 viewports

La Pereda CO2 capture pilot plant - Reactors

Reactors

Status of La Pereda 1,7MWt pilot test facility

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La Pereda pilot plant - Concept

Status of La Pereda 1,7MWt pilot test facility

CO2 design capture rate 75-95 %Flue gas flow to carbonator 680-2300 kg/hMaximum coal flow to calciner 325 kg/hCalciner Thermal input 0,4-1,8 MWtMaximum fresh limestone flow 300 kg/hOxygen flow to calciner 300-600 kg/hCO2 flow to calciner 700-2250 kg/hCalciner design T 950 ºCCarbonator design T 650 ºCFlue Gases:

Temperature 136 ºCPressure 40 mmH2O

CO2 12,6 %volSO2 740 ppmH2O 7 %volN2 74,1 %volO2 5,5 %vol

La Pereda CO2 capture pilot plant - Main inputs

Status of La Pereda 1,7MWt pilot test facility

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La Pereda CO2 capture pilot plant - Location

Status of La Pereda 1,7MWt pilot test facility

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The 1,7MWt experimental facility will be located at the La Pereda power plant.La Pereda is an existing 50MWe CFB power plant that belongs to HUNOSA.

La Pereda CO2 capture pilot plant

Facility Area

Status of La Pereda 1,7MWt pilot test facility

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Air heater ESP Stack

Pilot Plant

Return Conection

Conection

Material feeding system

Bottom ash system

La Pereda CO2 capture pilot plant

Status of La Pereda 1,7MWt pilot test facility

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La Pereda CO2 capture pilot plant - Layout

Fans

Flue gas outlet

Flue gas inletPropane tank

Electrical Heater

Burners and valves skids

Flue gas cooler

CO2 y O2 Tanks

Mixer

Ash removal system

Coal feeding system

Limestone feeding system

Gas cooler and pipes

Reactors

Structure

Control room

Storage

ESP STACK

Status of La Pereda 1,7MWt pilot test facility

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Civil works

Status of the construction

O2/CO2 Tanks

Gas Mixer

Reactors

Coal silo Limestone silo

Stairs

Status of La Pereda 1,7MWt pilot test facility

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Status of the construction – Structure erection

Structure

Height: 24 m

Area: 11,6 m x 8,6 m

Weight: 180 ton

Status of La Pereda 1,7MWt pilot test facility

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Status of the construction

Coal and limestone feeding system

Limestone silo

Coal silo

Limestone and coal bins

Common bin and final cooled screw

Status of La Pereda 1,7MWt pilot test facility

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Status of the construction – Reactors assembly

Reactors

Status of La Pereda 1,7MWt pilot test facility

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Status of the construction – Reactors assembly

Expansion Joints

• 12 Units

• New design for the purpose.

Status of La Pereda 1,7MWt pilot test facility

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Status of the construction – Reactors assembly

CO2-O2 supplyO2 Tank 20 Ton

CO2 Tank 50 Ton2 O2 atmospheric gasifiers

2 Pressure levels of CO2 Recirculating gasSealing and

Solid inyection1 CO2 Electric gasifiers 300 KW

O2 heater 20 KW

CO2 heater 15 KW

WITT Gas Mixer

%Vol O2/CO2 max ratio 41,5/58,5

Additional Gas Heater 100 KW

CaOling Midterm MeetingStatus of the construction – Fans

Fans

Nominal Power

Flue gases Fan 55 KWPrimary air Fan 55 KW

Cooling air Fan 75 KWHP air Fan 37 KW

• Variable Speed Drive

• Water cooler exchanger before flue gas fan

Status of La Pereda 1,7MWt pilot test facility

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Current Status of the construction

Reactors

Limestone

Control room

CO2 Tank

Gasifiers

O2 TankCoal

Mixer

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

T M/A T T M/A T M/A T M/A M/A T T M/A M/A T M/A T M/A T M/A T M/A M/A T M/A T M/A T M/A T M/A T M/A T M/A T M/A

July Agoust September OctoberMarch April May JuneNovember December January FebruaryEXPERIMENTAL TEST MATRIX

PHASE I PHASE II PHASE IV PHASE V PHAS.VI PH.VII EXTRA TESTS (To define during test matrix development)PH.VIIIPH III

CALCINER IN AIR MODE CALCINER IN OXYCOMBUSTION

PHASE IPHASE IIPHASE IIIPHASE IVPHASE VPHASE VIPHASE VIIPHASE VIII

Preliminary non stationary tests

Coal with high S and high ashesDynamic tests oxycombustionLong duration tests. Second limestone

Carbonatation stationary - calciner airReactivity tests- calciner airCalciner stationary - calciner oxyLong duration tests. Real conditions

Test matrix under CaOling project

Status of La Pereda 1,7MWt pilot test facility

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CaOling Workshop and La Pereda 1,7MWt CO2 capture plant open-day event.

Workshop will be held next February 2012 at Oviedo, highlighting the first results of the plant and other major research activities in calcium looping. After that an open-day visit to the plant will be organised.

More information soon in www.caoling.eu

You are welcome!

Status of La Pereda 1,7MWt pilot test facility

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