“ENCAP”
Enhanced Capture of CO2
Status: July 2005
Dr. Ciattaglia
Linde AG Business Unit Linde Engineering
1
Status Workshop 08.07.2005
FZJ Prof. Singheiser
Project costs :
22,2 Mio Euro (EC Contribution: 10,7 Mio Euro)
Start
:
March 2004
Duration
:
5 years
Some partners:
for power station operation:
Vattenfall, RWE
for power station construction/turbines:
SIEMENS, Alstom
for oxygen generation/supply:
Air Liquide, BOC, Linde
for processing/engineering:
Lurgi, Mitsui Babcock, Statoil, Linde
for material testing/developing:
SINTEF, TNO, Uni Twente, IFP
Linde AG Business Unit Linde Engineering
2
Status Workshop 08.07.2005
FZJ Prof. Singheiser
•Project Overview
•Progresses
Linde AG Business Unit Linde Engineering
3
Status Workshop 08.07.2005
FZJ Prof. Singheiser
ENCAP targets are the enhacement of CO2-capture efficiency and the
reduction of CO2-capture costs.
Project goals
Development and optimisation of emerging CO2-capture technologies and
processes for power generation based on fossil fuels meeting the following
targets:
at least 90% CO2-capture rate
50% CO2-capture-cost reduction
Reference: 50-60 Euro/t captured CO2.
Linde AG Business Unit Linde Engineering
4
Status Workshop 08.07.2005
FZJ Prof. Singheiser
ENCAP timing consists of two main phases.
Project timing and structure
• Timing: five years (2004-2008), 2 phases, start of project: March 2004
Phase I: research and basic experimental activities on candidate technology
concepts (months 1-30).
Phase II: research and large scale verification of one/two candidate
technology concepts selected on the basis of Phase I results.
Linde AG Business Unit Linde Engineering
5
Status Workshop 08.07.2005
FZJ Prof. Singheiser
ENCAP is structured in six sub-projects, SP.
• Structure
RTD activities structured in 6 sub-projects (important participants):
SP1 Process and Power Systems (Vattenfall, RWE,Siemens, Alstom, Linde LE)
(definition of power plant processes, reference plants, bench marks)
SP2 Pre-Combustion Decarbonisation Techn. (RWE, Lurgi, Siemens, AirL)
(IGCC, IRCC, oxygen from an cryo ASU)
SP3 OxyFuel Boiler Technologies (Vattenfall, AirL., Mitsui Babcock Energy)
(coal, natural gas with oxygen from an cryo ASU)
SP4 Chemical Looping Combustion (Alstom, SINTEF, IFP,TNO)
(oxygen transport by metal oxides)
SP5 High-Temperature Oxygen Generation for Power Cycles (BOC, Statoil,
SINTEF, TNO, Univ. Twente, Linde LE), SP Leader: LINDE LE.
(membrane developments)
SP6 Novel Pre-Combustion Capture Concepts (Alstom, Siemens, AirL)
Linde AG Business Unit Linde Engineering
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Status Workshop 08.07.2005
FZJ Prof. Singheiser
SP5 is focussed on the development of high-temperature oxygen
generation systems.
SP5: High Temp. Oxygen Generation for Power Cycles
Goals: identification, evaluation and ranking of promising high temperature
oxygen generation process options, to be effectively integrated in power plant
cycles with CO2 capture.
Organisation: 2 phases
phase I: development of three promising high temperature oxygen generation
routes, based on ceramic materials and either O2-transport or O2-storage, to
enable economic comparison and selection of the most promising option (first
18-months)
phase II: further validation of the selected option
Linde AG Business Unit Linde Engineering
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Status Workshop 08.07.2005
FZJ Prof. Singheiser
SP5 is structured into five interacting work packages
WP5.2
Oxygen
separator
membrane
SINTEF
TNO
UTwente
WP5.1
Linde
Oxygen process
Siemens
selection and
RWE
integration
WP5.5
WP5.3
CAR process
Stability definition
of materials
BOC
AP
TNO
SINTEF
UTwente
WP5.4
Oxygen
transport
membrane
Linde AG Business Unit Linde Engineering
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Statoil
Status Workshop 08.07.2005
FZJ Prof. Singheiser
•Project Overview
•Progress
Linde AG Business Unit Linde Engineering
9
Status Workshop 08.07.2005
FZJ Prof. Singheiser
A selection procedure for the identification of the most promising
integration power plant scenario was defined
WP5.1 Oxygen process selection and integration
Definition of a stepwise procedure for the selection of one most promising
power plant with integrated high T oxygen generation system (Milestone month
18).
First economic evaluation of preselected, most promising scenarios with
integrated oxygen generation systems.
Linde AG Business Unit Linde Engineering
10
Status Workshop 08.07.2005
FZJ Prof. Singheiser
Material screening, testing and characterisation were focused by
WP5.2 and WP5.3.
WP5.2 Development and validation of oxygen separator membrane for
power plant cycle applications
Selection of the basis composition CaTiFeO for the development of a
membrane system dense layer + porous support.
Identification of the methodologies for membrane system manufacture.
WP5.3 Development of CAR process
Identification of new materials with oxygen recovery capacity exceeding by a
factor 3-6 the standard CAR materials and allowing a decrease in the process
temperature by about 200 °C.
Found the phenomenon of “restoration” of perovskite structures enabling thus
extended material life time.
Linde AG Business Unit Linde Engineering
11
Status Workshop 08.07.2005
FZJ Prof. Singheiser
Principle of the CAR Process
(Ceramic Autothermal Recovery)
steam/CO2
N2
regenerator layer
perowskite pellets
layer
regenerator layer
air
steam/CO2 and O2
Linde AG Business Unit Linde Engineering
12
Status Workshop 08.07.2005
FZJ Prof. Singheiser
The integration of the OTM unit in power plan was the main issue of
WP5.4
WP5.4 Reactive oxygen transport membrane system
Calculation and upgrading of a power plant concept with integrated OTMreformer reactor or OTM separator
Feasibility study on OTM + reformer reactor
Data on material and on long term stability tests were collected before ENCAP
WP5.5 Stability evaluation of high temperature oxygen generation methods
Intensive work on WP5.3 materials
Experimental confirmation of the “restoration” phenomenon (SINTEF)
Stability tests (“accelerated life-time tests”, Twente)
Linde AG Business Unit Linde Engineering
13
Status Workshop 08.07.2005
FZJ Prof. Singheiser
Month 18 is SP5 next critical milestone.
Next steps for SP5
Month 18
Month 30
WP5.1 Process integration
Phase 2:
Validation of the selected
process
Design concept
of a scaled-up test unit
for this process
WP5.2 Oxygen separator
WP5.3 CAR process
WP5.4 Oxygen reactor
WP5.5 Stability issues
Key Milestone:
Selection process option
Linde AG Business Unit Linde Engineering
14
Status Workshop 08.07.2005
FZJ Prof. Singheiser
thank you
for your attention
Linde AG Business Unit Linde Engineering
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Status Workshop 08.07.2005
FZJ Prof. Singheiser