AspenTech’s Carbon Capture · PDF fileNatural Gas Treatment H2S Removal from CO2 Using Kinetic Selectivity ... CO2 Removal (79.6% Req'd) %of ... AspenTech’s Carbon Capture Modeling

© 2013 Aspen Technology, Inc. All rights reserved

AspenTech’s Carbon Capture Modeling

Achieve better designs and commercial viability

Mike Mendez, Business Consultant

Engineering Collaboration Webinar Series

February 20, 2013

© 2013 Aspen Technology, Inc. All rights reserved |

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Ongoing Series of Technical Webinars Engineering Webinars for education and best practices

UPCOMING WEBINARS OF INTEREST:

APAC Webinar: Model Solids Processes Easily with Aspen Plus (Technical) – February 28th

APAC Webinar: Optimize Utility Costs with Aspen Utilities Planner (Technical) – March 7th

Optimize Economic Evaluation Throughout the Design Process (Technical) – March 12th

Melhorar a Modelagem do Projeto Conceitual com um Fluxo de Trabalho Integrado Usando o Aspen HYSYS - 13 de Março

Optimize Energy Use in New Process Designs with aspenONE Analysis Tools featuring Maturus Optimi – March 27th

ALSO UPCOMING:

Optimize 2013 Global Conference – May 6th-8th


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Common Models & Data

aspenONE Integration

Support Manufacturing & Supply Chain

Conceptual Engineering

Basic Engineering

Detailed Engineering

aspenONE Engineering Best-in-class engineering solutions in an integrated work flow

Aspen Simulation Workbook & Aspen Online Deployment

Aspen Petroleum Downstream & HYSYS Upstream

Aspen Equipment Design & Rating

Aspen Basic Engineering Aspen Capital

Cost Estimator (ACCE)

Aspen Plus Dynamics, ACM & Flare System & Energy Analyzer

Aspen Plus

Aspen HYSYS

Aspen Process Economic Analyzer (APEA)

Detailed Engineering

Aspen Plus

Aspen HYSYS


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Topics

The Value of AspenTech’s Carbon Capture Solutions

AspenTech’s Carbon Capture Modeling Overview

Carbon Capture Samples and New Packages in V8.0

Demonstration – Tips for Easing the Effort

Q&A


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Key Business Challenges in Carbon Management

Business Goal:

Minimize Greenhouse Gas (GHG) Emissions

Challenges:

Carbon Capture and Conversion to Biomass

– Energetically and economically taxing

– Difficult to scale

Solution:

Energy Minimization is best technology today

Need powerful tools to optimize energy in process

Enter aspenONE Engineering The world’s largest carbon

capture test facility (Technology Centre Mongstad, Norway) uses

Aspen Plus and Aspen IP.21


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Aspen Plus Carbon Capture Solutions

New Rate-Based Carbon Capture Packed Column Models

Five new models available as downloads (August 2012)

Supported under Aspen Plus V7.3.2, V8.0

Model aqueous amine absorbents in packed column absorbers/strippers

Business Benefits

Improve accuracy of amine absorbent absorption predictions

Better model accuracy supports scale-up and economic predictions

Shorter time to market

Lower R&D expenses


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How to Access These Models

Online: http://support.aspentech.com/webteamasp/My/FrameDef.asp?/webteamasp/DownloadNow.asp?p=CO2Models

Within Aspen Plus V8.0

http://support.aspentech.com/webteamasp/My/FrameDef.asp?/webteamasp/DownloadNow.asp?p=CO2Models




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Topics





Q&A


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Scope of Carbon Capture Processes

Carbon capture technologies cover a broad range of industrial applications

Environmental - GHG Mitigation

Natural Gas Treatment

H2S Removal from CO2 Using Kinetic Selectivity

CO2 Removal and Recompression for Enhanced Oil Recovery

Syngas Production – as in methanol, ammonia, SNG and FT processes


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AspenTech’s Carbon Capture Modeling Functionality

Property Packages

Electrolytes

Chemistry

Reaction Kinetics

Rate-Based Distillation

Mass-Transfer and Heat Transfer Methods

Calculations based on tray and packing internals

No need for stage efficiencies

Integrated Environment that Supports:

Unified model with the greater process unit simulation

Equipment Sizing – towers, heat-exchange, pumps, compressors, hydraulics…

Economic Analysis

Reaction type Stoichiometry

1 EQUIL 2 H2O <--> H3O+ + OH-

2 EQUIL HCO3- + H2O <--> CO3-2 + H3O+

3 EQUIL PZH+ + H2O <--> PZ + H3O+

4 EQUIL HPZCOO + H2O <--> PZCOO- + H3O+

5 EQUIL MDEA+ + H2O <--> MDEA + H3O+

6 KINETIC CO2 + OH- --> HCO3-

7 KINETIC HCO3- --> CO2 + OH-

8 KINETIC PZ + CO2 + H2O --> PZCOO- + H3O+

9 KINETIC PZCOO- + H3O+ --> PZ + CO2 + H2O

Aspen Plus Complex Model


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Two-Film Concept

Mass

Transfer

Interface

Heat of

Reaction

Chemical

Reaction

Reaction

Products

Vapor

Phase

Liquid

Phase

Vapor from

Segment Below

Liquid to

Segment Below

Liquid from

Segment Above

Vapor to

Segment Above

Heat

Transfer

Aspen Rate-Based Distillation


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Distillation Calculations

Vapor and Liquid leave

segment/tray in equilibrium

Vj

Lj

TL = TV

PL = PV

fiL = fiv

Equilibrium vs. Rate Based

Vapor and Liquid leave segment/tray not

in equilibrium as in actual equipment

TL ≠TV

PL ≠ PV

fiL ≠ fiv

Block ABSORBER: Temperature Profile

Stage

Tem

pe

ratu

re K

1 3 5 7 9 11 13 15 17 19 21300

305

310

315

320

325

330

335

340

Liquid

Vapor

Interface

Block ABSORBER: Temperature Profile

Stage

Tem

pe

ratu

re K

1 3 5 7 9 11 13 15 17 19 21295

300

305

310

315

320

325

Temperature K

Requires

η or HETP

Does not Require η or HETP (may be calculated as option)


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Property Requirements

Equilibrium Rate-Based

Fugacities Fugacities

Densities Densities

Enthalpies Enthalpies

Transport: Diffusivities, Viscosities, Surface Tension, Thermal Conductivities

Efficiencies Mass-Transfer Coefficients

Interfacial Areas

Heat-Transfer Coefficients

All lumped into a single adjustment number


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Rate-Based Distillation Key Input

Trays Packing Comments

Input Field

Calculation Type Rate-Based Use RADFRAC Unit Operation in

AspenPlus/Templates In HYSYS

N-Stages Actual Number of Trays Number of Integration Intervals

applied to total packing height

Column Diameter Use Tray Sizing Utility if unknown Use Packing Sizing Utility if

unknown

Column Internals Selection Bubble Cap, Sieve, Glitsch Ballast,

Koch Flexitray, Nutter Float Valve

58 types from MTL, NORTON,

Glitsch, Raschig, Generic, Sulzer,

QVF

(See RARDFRAC / Pack or Tray

Rating / Setup form)

Stage Efficiencies / HETP Not Required Calculated as an option

Mass Transfer Coefficient

Method

AICHE, Gester et al., Hughmark

Onda et al., Bravo and Fair, Billet

and Schultes, HanleyIMTP

(See RARDFRAC / Pack or Tray

Rating / Rate-Based form)

Heat Transfer Coefficient

Method

Chilton and Colburn Chilton and Colburn Generalized and User also available

Interfacial area method Scheffe and Weiland Onda et al., Bravo and Fair, Billet

and Schultes, HanleyIMTP

Flow Model Mixed – both vapor and liquid phase are well mixed

Counter Current – liquid and vapor flows are countercurrent

VPlug – liquid is well mixed vapor is plugflow

VPlu-Pavg – liquid is well mixed vap is plugflow. P is avg press.

Applies to both Trays and Packing

Interfacial Area Factor Default = 1 Available to fit against plant data

Heat Transfer Factor Default = 1 Available to fit against plant data

Film Resistance (Liquid or

Vapor)

No Film – no film resistance

Film – diffusion resistance but not reaction in film

Filmrxn – diffusion resistance with reactions in film

Discrxn – reactions in film and film is discretized

Applies for both Trays and Packing


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Typical Carbon Capture Case Study

Case=>

Base Case

Increase Circulation 19% and Steam 10%

More Dilute MEA Sln by 20%

Stronger MEA Sln by 13%

100% More Packing, Adjust Steam to Match Base Case Spec

Variable Units Flue Gas Flow mmscfd 29 29 29 29 29 CO2 Removal (79.6% Req'd) %of Total 79.6% 80.8% 77.7% 80.6% 79.6% Gas Out %CO2 1.15% 1.11% 1.27% 1.10% 1.15% Relative Lean Flow 1 1.19 1.06 1.00 0.98

Lean Loading, mol CO2/MEA 0.26 0.26 0.23 0.25 0.34 Relative Lean Loading 1.00 1.00 0.89 0.97 1.32 Energy Per Mole CO2 Btu/lbmol 98,708 107,056 101,191 97,543 62,729

Rich Loading, mol CO2/ MEA 0.38 0.37 0.37 0.36 0.46 Circulation Rate gpm 520 612 520 520 520 Relative Capital Investment 1 --- --- --- 1.10 Relative Utilities Cost 1 --- --- --- 0.64

Payback (against total capital) yrs --- --- --- --- 2.7


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Topics





Q&A


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C:\Program Files (x86)\AspenTech\Aspen Plus V8.0\GUI\Examples\Amines_ENRTL-RK

C:\Program Files (x86)\AspenTech\Aspen Plus V8.0\GUI\Examples\Amines_ELECNRTL

C:\Program Files (x86)\AspenTech\Aspen Plus V8.0\GUI\App\Physical solvents

Amines Examples are installed on your PC in these folders

Includes report

with references and

quality of data-fit


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AMINES

AMP 2-AMINO-2-METHYL-1-PROPANOL Absorber, Stripper, open loop

MEA MONOETHANOLAMINE Absorber, Stripper, Preheater,

Closed Recycle

* New or Updated

DEA DIETHANOLAMINE Absorber, Stripper, open loop

MDEA METHYL-DIETHANOLAMINE Absorber, Stripper, Preheater,

Closed Recycle

* New or Updated

DEA + MDEA C4H11NO2-1 + C5H13NO2 Absorber

DGA DIGLYCOLAMINE Absorber, Stripper, Preheater,

Closed Recycle

* New or Updated

DIPA DIISOPROPANOLAMINE Absorber, Stripper, Preheater,

Closed Recycle

* New or Updated

K2CO3 POTASIUM CARBONATE Absorber, Stripper, open loop

MEA+MDEA C2H7NO + C5H13NO2 Absorber

NAOH SODIUM HYDROXIDE Absorber

NH3 AMMONIA Flash

PZ PIPERAZINE Flash

PZ+MDEA C4H10N2 + C5H13NO2 Absorber, Stripper, Preheater,

Closed Recycle

* New or Updated.

HPZCOO is treated as a zwitterion

PZ+MEA C4H10N2 + C2H7NO Flash

TEA TRIETHANOLAMINE Absorber, Stripper, Closed Recycle * New or Updated

Sulfolane + DIPA C4H8O2S + C6H15NO2 Flash

Sulfolane + MDEA C4H8O2S + C5H13NO2 Flash

NOTE * Located in directory C:\Program Files (x86)\AspenTech\Aspen Plus V8.0\GUI\Examples\Amines_ENRTL-

SORBENT / FORMULA UNIT OPERATIONS COMMENTS

CO2 Capture Sample Files in Aspen Plus V8.0


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CO2 Capture Sample Files in Aspen Plus V8.0 (Cont’d)

PHYSICAL SOLVENTS

DEPG Absorber, Stripper, open loop

NMP Absorber

PC Absorber

Polymers DEPG Absorber, Stripper, open loop

MEOH Absorber

DIMETHYL-ETHER-POLYETHYLENE-GLYCOL

N-METHYL-2-PYRROLIDONE

PROPYLENE-CARBONATE

DI-, TRI-, TETRA-, PENTAETHYLENE-GLYCOL-DIMETHYL-ETHER (AS

OLIGOMERS: C6H14O3-D1, C8H18O4, C10H22O5, C12H26O6)

METHANOL

UNIT OPERATIONSSORBENT / FORMULA


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CO2 Capture Sample Files in Aspen HYSYS V8.0

C:\Program Files (x86)\AspenTech\Aspen HYSYS V8.0\Samples\Rate-Based Distillation


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Topics





Q&A


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Closing Statements

• Carbon capture technologies are a critical part of today’s process industries and Aspen’s 2nd Generation Rate-Based Distillation Modeling can be an enabling tool for reliable design of these systems

• Advantages of Aspen’s Carbon Capture Modeling approach are:

• Property packages that include electrolytes, chemistry and reaction kinetics

• No need to use lumped approximations like efficiency or HETP • Adaptable to most absorption equipment dimensions and internals

• Aspen’s Rate-Based methodology can provide quantitative evaluation of complex relationships between process variables in absorptive carbon capture processes


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Optimize 2013 Global Conference

Hitachi Zosen Ethanol distillation membrane separation model with Aspen Custom Modeler and Aspen Plus

Evonik Industries Dynamic simulation for safety analysis of columns

Renmatix

Scale-up of biochemical cellulosic conversion processes

May 6-8, 2013

See these and over 50 additional presentations and training sessions

Cansolv (Shell) Modeling of CO2 Capture with unique amine solvents


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Registration Discount for Webinar Attendees!

$1,500 – a savings of 25% off the standard conference fee! For more information, visit www.optimize2013.com and use the promotional code WEB2013 to receive the discount. Offer Expires March 31!

OPTIMIZE 2013 6 – 8 May 2013 The Westin Waterfront Hotel Boston, MA USA

http://www.optimize2013.com/


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Questions

Documents

AspenTech’s Carbon Capture · PDF fileNatural Gas Treatment H2S Removal from CO2 Using Kinetic Selectivity ... CO2 Removal (79.6% Req'd) %of ... AspenTech’s Carbon Capture Modeling