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INABENSA Su interlocutor en ingeniería y construcción industrial

AvantO2 II: New generation of advanced ion transport membranes applied to oxygen separation process for oxyfuel systems Isabel Moriña Díaz 10th September 2013 Ponferrada (Spain)

INABENSA

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INABENSA Company

Abengoa (MCE: ABG) is an international company that applies innovative technology solutions for sustainability in the energy and environment sectors, generating energy from the sun, producing

biofuels, desalinating sea water and recycling industrial waste

Abengoa business is composed of three key areas

Engineering and construction (E&C)

Concession-type infrastructures

Industrial production

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INABENSA Company

Electromobility CO2 Capture and Uses

Energy Efficiency

Comunications

Energy Storage Power Electronic Aeroespace R&D

Technology and Innovation

Organization Chart

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AvantO2 II

Project perspectives

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Source: World Energy Consumption, IEA, 2011 Source: United Nations, World population prospects, 2011

Problematic of CO2

Increase of the population

Source: Global CCS Institute, 2012

Requirement of action to solve the problem

Increase of CO2 emissions

Increase of the energy consumption

Context

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INABENSA Context

Strategies to combat the climate change

CCS technologies will help to the CO2 emissions reduction by 50%.

Source: IEA, 2012

Increase of the population

Oxyfuel technology

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Large amounts of oxygen production

Alternative to conventional air separation

• Only available technology in this issue

• Penalize plant efficiency

Technology description

Oxyfuel Gaps

ASU

OTM technology

Context

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• Separation of oxygen from air through ions and electrons conducting membranes

• It works at high operating conditions:

o Temperature between 800-1100 ºC

o High pressure that acts as a driving force

o Two possibilities of operation 3-end and 4-end (selected the last one as the best option)

OTM performances

OTM characteristics O2-

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∆pO2

Inert+O2

Inert N2+O2(Aire)

N2

To deal with such adverse membrane operating condition it is necessary a high integration degree.

OTM integration

DESOX

DENOX

CompressorExpander

G

O2

Boiler

Electrostaticprecipitator

Recycle

Coal

Depleted air(To heat

water/steam)

Econimizer

Air

Economizer

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INABENSA AvantO2 II

Project data

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Project acronym AvantO2 II

Project title New generation of advanced ion transport membranes applied to oxygen separation processes for oxyfuel systems integration

Funded by Innovation and Development Agency (IDEA)

Budget 1.080.000 €

Project duration 3 years

End date 30/09/2014

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Project objectives

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• Search of new solutions for oxygen needed in oxyfuel technology

• New membrane materials development that ensure against others separation technologies:

o High air separation performance

o High stability

o Lower operating cost

• The study of membrane integration into an oxyfuel plant

General goals

• Conductivity optimization through multidoping at moderate temperatures and stability improvement against CO2

• Perform electrical conductivity and oxygen permeation studies at laboratory

• Expose the material at high temperature in gas mixture

• Economic comparison of both oxygen separation technologies

• Design and construction of laboratory scale test

• Study of the scale up parameters

Specific objectives

AvantO2 II

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Project participants

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• All are located in Spain what helps to share the knowledge.

• The members involve are:

o Inabensa: involves as Project leader

o AICIA: participates in the membrane integration activities

o ITQ-CSIC: its tasks are related to the use of sophisticated analytical techniques and instrumental precision equipment

Partners

AvantO2 II

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Project Work Tasks

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• WT1. Oxyfuel technology state of the art

• WT2. Oxygen production technologies comparison

• WT3. Materials test design and modeling

• WT4. Samples preparation

• WT5. Samples characterization

• WT6. Catalytic membranes test and stability test

• WT7. OTM module design

• WT8. Design and construction of the experimental facility

• WT9. Experimental test planning

• WT10. Operation and results analysis

Work tasks

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Project Work Tasks

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• Dense membrane materials compose of:

• Perovskite family

• Alkaline elements, rare earth and transition metals

• Oxygen vacancies in the structure enable oxygen diffusion

• Stability problems :

• In presence of moisture and CO2 or sulfur compounds

• Long time under O2 concentration gradient

Membrane materials

Find membrane materials resistant to CO2 and other pollutant and with high permeability to the oxygen

Aim

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Project Work Tasks

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Stages of the laboratory studies:

• Choose the materials

• Prepare the samples

• Characterize the samples

• Meassure several parameters

o Conductivity

o Permeability

o Stability

Membrane materials

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Project Work Tasks

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Among several studies done, here it is presented the most relevant results:

Results

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Project Work Tasks

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• Two membrane configurations:

o 3-end

o 4-end

• Variables taken into account:

o Driving force

o Air inlet flow distribution

o Air inlet flow condition

o Permeate flow condition

Membrane Configurations

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Project Work Tasks

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4-End mode

Driving force

Inlet Feed/Permeate

Conditions Feed inlet

Conditions Permeate

Heat recovery

Sweep gas

Countercurrent Compressor + Heat

exchanger + Auxiliary combustion

Heat exchanger+ Power consumption in oxyfuel

process Turbine + Economizer

3-end mode

Vacuum - Compressor + Heat

exchanger + Auxiliary combustion

Heat exchanger+ Power consumption in oxyfuel

process Turbine + Economizer

4-end mode 3-end mode

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Project Work Tasks

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Pulverized boiler

Gross power (MWe) 500

Fuel Spanish Antracite Coal

Oxygen concentration in the exhaust gas (%) 4

Oxygen concentration in the primary recirculation (%)

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OTM

4-end mode 3-end mode

Operating temperature (feed/sweep sides) (oC)

900/700 900

O2 selectivuty (%) 100 100

Operating pressure (feed/sweep sides) (bar)

15/1.15 15/0.150

Pressure drop (bar)

0.04 0.04

Oxygen permeate rate (kg/s)

114.68 105.46

4-end

3-end

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Different cases of study:

• Postcombustion as reference case

• Oxyfuel with ASU O2 production system

• Oxyfuel with membrane O2 production system in 3-end configuration

• Oxyfuel with membrane O2 production system in 4-end configuration

Project Work Tasks

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Results

Power plant efficiency enhance with the

application of OTM system

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The planning for the experimental facility is to be able of change the operating conditions to make the system versatile.

Project Work Tasks

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Experimental test

Possibility of operates in different configuration, change the composition of the sweep gas, change the temperature, etc.

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Project perspectives

Membrane materials development stable to CO2 and other pollutants present in flue gases in order to be able to use 4-end configuration

Expected achivements

Material with these characteristics drive to a technically feasible option of operation that will make a economically viable option with better-yields process.

Results

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Thank you!

Isabel Moriña Díaz Instalaciones Inabensa, S.A.

Technology and Innovation Departament isabel.morina@inabensa.abengoa.com