assessment of lignite resources and utili ti o ti f ... · gasification kinetics coal water...
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Assessment of Lignite Resources and Utili ti O ti f thUtilization Options for the
State of ArkansasPresented at the State Capitol as Part of the Joint Committee on Energy to Discuss the Status of the
A k Li it R Pil t PArkansas Lignite Resources Pilot Program
Michael L Jones Ph DMichael L. Jones, Ph.D.Energy & Environmental Research CenterEnergy & Environmental Research Center
Grand Forks, North DakotaGrand Forks, North Dakota
August 4, 2008August 4, 2008
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Outline
• EERCEERC• Status of Gasification
E i b fit f Li it D l t• Economic benefits of Lignite Development in ND
• Proposed Work to Evaluate Arkansas Lignite
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What Does the EERC Do?
• The EERC is recognized as one of the world's leading developers of:Cl ffi i t d i ti t h l i t– Cleaner, more efficient and innovative energy technologies to guarantee clean, reliable energy supplies for the United States and the world.
– Environmental technologies to protect and clean our air, water, g pand soil.
• The EERC is a research, development, demonstration, and commercialization center.
• The EERC vigorously maintains a nonadvocacy position
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• The EERC vigorously maintains a nonadvocacy position. • The EERC enhances any guarantee.
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EERC Facilities
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EERC Facilities
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Providing Strategic Solutions to Real-World Problems
The EERC provides practical, cost-effective solutions to today’s most critical energy and environmental issues and challenges.
Our research portfolio includes:• Clean coal technologies• Coalbed methane• Underground coal gasification
• Alternative fuels– Ethanol, biodiesel, biojet, and
strategic fuels for the military• Underground coal gasification• Emission control
– SOx, NOx, air toxics, fine particulate, and CO2
M t d t l
• Biomass• Wind energy • Water management
• Mercury measurement and control• CO2 sequestration• Global climate change• Energy and water sustainability
• Flood prevention• Waste utilization• Contaminant cleanup
Advanced analytical technologies/• Energy-efficient technologies• Distributed power generation – various
fuels• Hydrogen technologies
• Advanced analytical technologies/ extraction technologies
• Pesticides and neurological diseases
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Invention vs. Innovation
“Don’t invent somethingthat nobody wants!”that nobody wants!
Th Edi– Thomas Edison
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EERC Centers of Excellence
The EERC’s Centers of Excellence are leading the world in providing expertise in scientifically advanced energy systems and the prevention and cleanup of air, water, and soil pollution.
• Coal Utilization Technologies Center• Emission Control Technologies Center• The National Center for Hydrogen
cleanup of air, water, and soil pollution.
The National Center for Hydrogen Technology
• Center for Climate Change and CO2Sequestrationq
• Center for Air Toxic Metals® (CATM®)• Centers for Renewable Energy and Biomass
Utilization• Water Management Center• National Alternative Fuels Laboratory®
(NAFL®)
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• Supercritical and Subcritical Extraction Technologies Center
• Coal Ash Research Center
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EERC Quick Facts• Total value of current EERC contract portfolio is over $189 million.
• The EERC had 442 active contracts in FY07.
• In FY07, 93% of contracts were with nonfederal clients.
• In FY07, over 64% of clients were repeat customers.
• Total employment of over 300 highly skilled scientists, engineers, and support personnel, with about 20 new open positions.
• Current facilities include more than 245,000 square feet of laboratory, demonstration, and office space.
• The EERC sends out an average of nearly one funding proposal per calendar day.
• Total expenditures for FY07 were more than $27 million, with an estimated regional economic impact of $94.5 million.
• Fourteen spin-off companies have evolved from EERC programs.
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Worldwide Clients
Since 1987, the EERC h h dEERC has had over 1000 clients in 50 countries and all 50 statesstates.
Client Specs:• Governmental clients: 87• Academia: 51 • International market: 129• Private corporations: 750
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CABRE II – Computer
CABRE III – Systems Engineering modeling –design of future systemsSelected Gasification ActivitiesSelected Gasification Activities
at the EERCat the EERC
CABRE I – Ash behavior Entrained flow gasifiers
pmodel for entrained flow
gasifiers
Dev
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Dakota GasificationSupport
Gasification Kinetics
Coal water slurriesLignite Gasification – ash
behavior
Res
earc
h an
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Refractory and slag flowLignite properties –moisture friability
Trace elementsin gasification
1945 1955 1965 1975 1985 1995 2005 2010
echn
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Annular ExternallyHeated Retort
Slagging Fixed-Bed Gasifier Catalytic
Gasification/SOFCMild Gasification
Transport ReactorDevelopment Unit
Microgasifier
Te De
Entrained flow Slagging gasifier
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Economic benefits of lignite development
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Current Uses for Lignite in the United StatesStates
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Comparison of the Cost of Gasification Technologies (Leonard et al 2005)Technologies (Leonard et al., 2005)
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Lignite Industry Jobs in North Dakota
The lignite industry directly employs over 4000 people in North Dakota. For everyThe lignite industry directly employs over 4000 people in North Dakota. For every direct job provided by the lignite industry, another approximately five jobs are needed to supply the industry with goods and services. Thus total employment is nearly 25,000.
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Lignite Industry Business Activity in North DakotaNorth Dakota
Li it i d t dit $734 illi E h d ll t b th li it i d tLignite industry expenditures are $734 million. Each dollar spent by the lignite industry circulates through the state's economy another three times. Thus total business activity is more than $2.0 billion in North Dakota.
Th li it i d t t $83 illi i t t t
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The lignite industry generates over $83 million in state tax revenue.
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Arkansas Opportunity
• ~9 Billion tons of lignite9 Billion tons of lignite• Largely undeveloped
A t CO 2 t ti• Access to CO 2 sequestration opportunities
• State government supportive of responsible development
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GasificationGasification
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Li it G ifi tiLignite Gasification
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Dakota Gasification CompanyAntelope Valley StationAntelope Valley Station
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Proposed Research acti itProposed Research activity
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Three-Phase Activity
• Sampling and analysis of Arkansas lignite
• Use enhanced characterization and existing• Use enhanced characterization and existing EERC models to rank feedstocks
• Use existing EERC facilities for proof-of-concept testing to produce Fischer–Tropsch (FT) liquids
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Phase I -- Analysis
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Conventional Analysis
• Proximate analysisProximate analysis• Ultimate analysis
A h id• Ash oxides
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Advanced Analysis
• Computer-controlled scanning electronComputer controlled scanning electron microscopy (CCSEM)
• Mercury and chlorine analysis• Mercury and chlorine analysis• Chemical fractionation
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Phase II-- Modeling
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Modeling of Gasifier Syngas and Coal to LiquidsLiquids
• Model built using Aspen PlusTMModel built using Aspen Plus– Steady-state simulation
Mass and energy balances– Mass and energy balances– Phase and chemical equilibrium
Reaction kinetics– Reaction kinetics
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Operational Challenges
• Entrained-flow gasifier (EFG)Entrained flow gasifier (EFG)• Fluid-bed gasifier
O fi i b ti• Oxy-firing combustion
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CABRE (Coal Ash Behavior in Reducing Environments) PredictionsEnvironments) Predictions
• Ash formation (FactSage)Ash formation (FactSage)• Slag flow
D iti i f• Deposition on various surfaces• Plugging of hot-gas filters
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Phase III ---Proof of Concept
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Bench-Scale Testing
• Circulating fluidized-bed reactor (CFBR)Circulating fluidized bed reactor (CFBR) testing
• EFG testing• EFG testing• Gas cleanup and water–gas shift• Hydrogen separation • Liquid fuel productionq p
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Schematic of EFG
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Schematic of CFBR
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Design Drawing of the Pressurized Fluidized Gasification ReactorGasification Reactor
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EERC Bench Scale FT Reactor
• Fixed bed reactor system• Simulated syngas (.3 – 1 LPM)• Supported iron catalyst pellets
– Alumina, copper, potassium• Hot/cold liquid traps• Laser gas analysis
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Cross-Sectional View of Fuel Feed Systemof Fuel Feed System
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Schematic of Sulfur ReactorReactor
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Cross-Sectional View of Quench PotView of Quench Pot
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Conversion and Environmental Process Simulator
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Deliverables
• Detailed analysis of Arkansas LigniteDetailed analysis of Arkansas Lignite• Identification of operational challenges
using EERC modelsusing EERC models• Proof of concept testing of Arkansas
Lignite in existing EERC Gasification andLignite in existing EERC Gasification and combustion test units
• Samples of F-T liquids produced from theSamples of F T liquids produced from the gasification of Arkansas Lignite
• Final Report
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Final Report
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Proposed Management Structure
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Contact Information
Energy & Environmental Research CenterUniversity of North Dakota
15 North 23rd Street, Stop 9018Grand Forks, North Dakota 58202-9018
www.undeerc.orgTelephone No. (701) 777-5000
Fax No. (701) 777-5181
Dr. Michael L. JonesDr. Michael L. JonesSenior Research Advisor
(701) [email protected]
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j @ g