COAL AND CLEAN COAL TECHNOLOGIES FOR THE FUTURE - PowerPoint PPT Presentation

Loading...

PPT – COAL AND CLEAN COAL TECHNOLOGIES FOR THE FUTURE PowerPoint presentation | free to view - id: 62593-ZWZhY



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

COAL AND CLEAN COAL TECHNOLOGIES FOR THE FUTURE

Description:

Lagisza power station, 460 MWe. Total output 460 MWe. SH steam conditions. flow rate 360 kg/s ... Wabash River (USA) Tampa Electric (USA) Puertollano (E) ... – PowerPoint PPT presentation

Number of Views:1544
Avg rating:5.0/5.0
Slides: 29
Provided by: johnmc76
Category:
Tags: and | clean | coal | for | future | technologies | the

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: COAL AND CLEAN COAL TECHNOLOGIES FOR THE FUTURE


1
COAL AND CLEAN COAL TECHNOLOGIES FOR THE FUTURE
  • Dr Andrew Minchener
  • (Member of EC POWERCLEAN Thematic Network)

2
WHAT IS POWERCLEAN?
  • Thematic network funded under the EC FP5 Fossil
    Energy RD programme
  • Members from EU industry, research institutes and
    universities
  • To encourage exchange between EC supported
    research projects, particularly coal
  • To propose an RTD strategy for future clean
    fossil energy power generation activities
  • To help communication between national and EC
    activities
  • To improve dissemination of results

3
THEMATIC LINKAGES
Gas Turbine Power Plants
PowerClean
  • Coal and Other Solid Fuels
  • Ultra-supercritical pf
  • Circulating fluidised bed
  • Pressurised fluidised bed
  • Gasification combined cycle
  • Hybrid cycles

Fossil Fuel Power Plant Technologies
CO2 Capture and Storage
4
SCOPE OF PRESENTATION
  • Introduction
  • energy demand, energy reserves, generating
    capacity, technology choices
  • Coal-fired power generation technology options
    for Europe
  • pf technology
  • fluidised bed combustion systems
  • IGCC
  • advanced cycles
  • R,DD needs

5
KEY ENERGY CONSIDERATIONS WITHIN THE EUROPEAN
UNION (1)
  • Security of fuel supply at the European level on
    a competitive basis.
  • Need to meet stricter environmental limits
  • Need to ensure that the EU is a world leader in
    low emissions power plants.
  • Must take into account the enlargement of the EU.
  • Need for a long-term technology vision and
    roadmap.

6
FUTURE ENERGY NEEDS
1500
IEA projection of world fuel supply
900
EU Energy demand and supply (Green Paper)
Reserves-to-production ratios
7
NEW POWER CAPACITY NEEDS IN EUROPE (VGB)
8
TECHNOLOGY CHOICE
  • Energy Policy (near-zero emissions)
  • Fuel Type and Availability
  • Local Circumstances
  • Technology Maturity and Reliability
  • Cost
  • Efficiency
  • Environmental Performance

9
Technology options
10
TECHNOLOGIES OF INTEREST TO EUROPE
  • Advanced ultra-supercritical pf combustion
  • CFBC, incorporating an advanced supercritical
    steam cycle
  • IGCC

11
PROPOSED STRATEGY FOR TECHNOLOGY DEVELOPMENT AND
DEPLOYMENT (1)
  •  
  • CCTs need to be competitive in a near to medium
    scale in terms of improved environmental
    performance and better economics (10-15 years)
  • Likely timescale for near zero emissions
    technology deployment is medium to long term (gt20
    years)

12
PROPOSED STRATEGY FOR TECHNOLOGY DEVELOPMENT
AND DEPLOYMENT (2)
  •  The near zero emissions technologies will be
    based on the CCT variants currently being
    established.
  • The more appropriate variants are not necessarily
    those currently favoured by EU industry for
    nearer term application.
  • There needs to be appropriate consideration and
    support for those technology variants that offer
    the best prospects for associated CO2 capture.

13
State-of-the-art pf technology Best
installations world-wide
14
Best reference plant Tachibana-Wan, 2x1050 MWe
Emissions (mg/Nm3 _at_ 6 O2) NOx 90 SO2
140 Dust 10
STACK
Steam 600/610C, 250 bar
BOILERS
GGH
COAL STORAGE
ESP
WFGD
15
TRENDS FOR PF USC WITHIN EUROPE
Thermie AD700 325 bar, 700C/700C ? 5055
(Net, LHV)
COST 522 300 bar, 630/650C
Today
2010-2015
soon
600 MW reference design 300 bar,
600/620C Achievable ? 4547 (Net, LHV)
Reduced capital costs Novel layouts
Yesterday
Vertical or spiral wound furnace 250 bar,
540/560C ?lt 40 (Net, LHV)
16
State-of-the-art CFBC technology Best
installations world-wide
600
500
Lagisza (PL)
Jacksonville (USA)
400
Sulcis (I)
AES Puerto Rico
Seward (USA)
Gardanne (F)
Baima (China)
Gross electrical output, MWe
Turow (PL)
300
Turow (PL)
Gilbert (USA)
Red Hills (USA)
200
Tonghae (Korea)
Can (Turkey)
Tha Toom (Thailand)
100
0
1994
1996
1998
2000
2002
2004
2006
2008
2010
Year plant commissioned
17
BEST REFERENCE PLANTLagisza power station, 460
MWe
  • Total output 460 MWe
  • SH steam conditions
  • flow rate 360 kg/s
  • temperature 560 C
  • pressure 27.5 MPa
  • RH steam conditions
  • flow rate 307 kg/s
  • temperature 580 C
  • pressure 5.46 MPa
  • Efficiency (gross, LHV) 43
  • Commercial operation 2007

18
CFBC TRENDS Developments of compact CFBC design
(Lurgi)
  • Volume 70 of conventional designed CFB
  • 500 MWe design

19
R, DD REQUIREMENTS TO OPTIMISE PERFORMANCE OF
EXISTING CCTs (1)
  • Ultra-supercritical pc combustion
  • Achieve very high efficiency with advanced
    ultra-supercritical steam cycles while ensuring
    that the novel components using new, materials of
    construction can achieve acceptable reliability
    at economic cost.
  • Establish materials for the advanced steam cycle
    components
  • Modify and improve the overall design leading to
    compact, less capital intensive systems where the
    advanced materials are minimised.
  • Implement demonstration of a commercial prototype

20
R, DD REQUIREMENTS TO OPTIMISE PERFORMANCE OF
EXISTING CCTs (2)
  • Circulating fluidised bed combustion
  • Establish designs for larger, 600-800 MWe, units
    incorporating advanced supercritical steam cycles
  • Ensure the designs can avoid thermal cracking of
    refractories in the furnaces and the cyclones
  • Establish the integration of a 20 substitution
    of coal by renewables (biomass), which can reduce
    CO2 emissions by a further 20-25.
  • Implement demonstration of advanced design

21
R, DD REQUIREMENTS TO ESTABLISH THE MORE
PROMISING NEAR-ZERO EMISSIONS VARIANTS FOR
COMBUSTION TECHNOLOGIES
  • Develop less energy intensive removal schemes
    compared to the use of chemical scrubbing using
    amines.
  • Determine whether oxy-fuel combustion to
    establish a more concentrated stream of CO2 can
    be attractive technically and economically.
  • Develop lower cost, less energy consuming oxygen
    separation systems (also applicable to IGCC).
  • Integrate the combustion process with the CO2
    capture stage in order to minimise efficiency
    losses and potential plant flexibility/availabilit
    y problems
  • Demonstrate at significant scale the removal of
    CO2 from a pc and/or CFBC plant

22
State-of-the-art IGCC technology Best
installations world-wide
At least 163 commercial gasification plants in
operation, construction, planning or design
stage Currently only 15 major IGCC plants using
coal, petroleum coke and refinery residues as
feedstock
23
Best referencePuertollano IGCC plant, 300 MWe
Emissions (mg/Nm3 _at_ 6 O2) NOx 150 (lt100) SO2
25 (lt20) Dust 8 (lt2)
Efficiency 42 (net, LHV basis)
24
R, DD REQUIREMENTS TO OPTIMISE PERFORMANCE OF
EXISTING CCTs (3)
  • IGCC/ MULTI-FUNCTION IGCC
  • Gasifier component development, including
    improved materials of construction for
    refractories and HRSGs, improved feeding and
    handling systems.
  • Gas turbine combustor development to ensure the
    efficient use of hydrogen rich fuels.
  • Ancillary component development, including lower
    cost air separation units.
  • Complementary design and optimisation studies,
    including full integration of CO2 capture.
  • Establish a demonstration of multi-function IGCC

25
ASSOCIATED STUDIES
  • Level playing field techno-economic studies of
    all three technology variants, both for CCT and
    near zero emissions applications, taking into
    account the global market possibilities.

26
SUMMARY OF PRIORITY R, DD NEEDS (1)
  • Implement an ultra-supercritical pf combustion
    demonstration power plant, building on the
    approach established by EU industry within the AD
    700 project.
  • Establish a state of the art CFBC utility scale
    unit using advanced supercritical steam
    conditions (building on the AD 700 experience)
    incorporating the co-firing of coal and biomass.
  • In both cases, if appropriate, continue the
    technical RD necessary to optimise and integrate
    the CO2 capture systems appropriate to establish
    near zero emissions variants of these
    technologies.

27
SUMMARY OF PRIORITY R, DD NEEDS (2)
  • Establish an integrated RD programme for
    multi-function IGCC development appropriate to H2
    and power production. This will include component
    development, the optimised integration of CO2
    capture and the provision of a gas turbine H2
    combustion system. In addition, it will be
    necessary to determine and implement the most
    appropriate approach to demonstrate this
    multi-function concept.
  • In all cases, the R,DD activities need to be
    supported by level playing field techno-economic
    analyses in order to determine the likely market
    penetration for each of these more promising
    technology options

28
CONCLUSIONS
  • Inevitable demand for improved and new coal-based
    generating plant
  • New requirements to limit emissions to air, land
    and water
  • Clean Coal Technologies are available and under
    development which are capable of meeting the
    demands
  • Need to combine experience and capabilities to
    exploit the full potential of clean coal
    technologies
About PowerShow.com