Garbage to gas
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“Garbage to Gas”. Team Bravo EleftheriosAvtzis David Garcia Bryan Isles Zack Labaschin Alena Nguyen Mentor Dan Rusinak. Design Basis. Commercial Scale Production 12,000-14,000 tonnes per day MSW  3,000+ tonnes per day Syngas Ideal max. capacity 8,000+ tonnes per day

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“Garbage to Gas”

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Garbage to gas

“Garbage to Gas”

Team Bravo

EleftheriosAvtzis

David Garcia

Bryan Isles

Zack Labaschin

Alena Nguyen

Mentor

Dan Rusinak

Che 397 - Team Bravo


Design basis

Design Basis

  • Commercial Scale Production

    • 12,000-14,000 tonnes per day MSW

    •  3,000+ tonnes per day Syngas

    • Ideal max. capacity 8,000+ tonnes per day

    • Scale-up available

  • Landfill choice confirmation

    • Location

    • Proximity to City

    • Water Sources

    • Size and expansion


Engineering specifications

Engineering Specifications

Che 397 - Team Bravo


Design basis1

Design Basis

Newton County Landfill

265 Acres

Room for expansion

Access to MSW of South Chicago

Transportation

No river access


Methane emissions in u s top 5 sources

Methane Emissions in U.S.Top 5 Sources

Che 397 - Team Bravo


Dioxins

Dioxins

  • At 800-900°C, dioxins thermally decomposes

  • SynGas temp. through gas conditioning unit is raised to 1000°C

  • No copper: which promotes dioxin formation

  • Dioxins tend to adsorb on char and breakdown in the combustion reactor

Che 397 - Team Bravo


Carbon footprint

Carbon Footprint

Environmentally friendly process by removing carbon waste from the environment.

Che 397 - Team Bravo


Block flow diagram

Block Flow Diagram

Ash to

landfill

Recycled

metals

Sulfur

Halogens

Hazardous

materials

MSW Processing

Gasifier

Methane Reforming

RDF

Raw SynGas

MSW

Return to

landfill

Steam

Electricity

Steam Generation

Cooling & Cleaning

Electrical

grid

Clean

SynGas

CO2

Team Alpha Gasoline Production

CO2 Removal

Reverse Water-Gas Shift

SynGas at spec.

Che 397 - Team Bravo


Rdf processing

RDF Processing

Che 397 - Team Bravo


Shredding hammer mill

Shredding: Hammer Mill

Che 397 - Team Bravo


Trommel screen

Trommel Screen

  • Cylinder with screen on the outside

  • Sorts shredded MSW by size

  • Rotates to drive the MSW through from one side to the other

Che 397 - Team Bravo


Eddy current separator

Eddy-Current Separator

  • Basic schematic of Eddy-Current Separator

  • Non-Ferrous metals are ejected

  • This is prior to removal of ferrous metals

Che 397 - Team Bravo


Magnetic separator

Magnetic Separator

  • For removal of Ferrous metals

  • Uses magnets to hold iron containing metals to the roller

  • Releases them into separate bin for return to landfill

Che 397 - Team Bravo


Tbe process

TBE Process

SynGas

SynGas

Tars

Gas Conditioning Reactor

Flue Gas

Olivine

(Hot)

Combustion

Reactor

Gasifier

RDF

Air

Olivine

Steam

Char, Ash

& Olivine

(Cool)

Ash Removal

Che 397 - Team Bravo


Gasifier material balance

Gasifier: Material Balance

SynGas

Tars

RDF

Olivine

Steam

Char

Olivine

Che 397 - Team Bravo


Gasifier energy balance

Gasifier: Energy Balance

Reactions

C + H2O  CO + H2 + 56,376 BTU/lbmol

CO + ½O2 CO2 -1.2 E5 BTU/lbmol

SynGas

Tars

RDF

Olivine

Steam

Char

Olivine

Che 397 - Team Bravo


Combustion reactor material balance

Combustion Reactor: Material Balance

Flue Gas

Olivine

(Hot)

Air

Char, Ash

& Olivine

(Cool)

Ash Removal

Che 397 - Team Bravo


Combustion reactor energy balance

Combustion Reactor: Energy Balance

Reactions

C + O2 CO2 -1.7 E5 BTU/lbmol

Flue Gas

Olivine

(Hot)

Air

Char, Ash

& Olivine

(Cool)

Ash Removal

Che 397 - Team Bravo


Gas conditioning reactor material balance

Gas Conditioning Reactor:Material Balance

SynGas

SynGas

Tars

Olivine

Olivine

Che 397 - Team Bravo


Gas conditioning reactor energy balance

Gas Conditioning Reactor:Energy Balance

Water Gas Shift reaction reaches thermal equilibrium.

SynGas

SynGas

Tars

Olivine

Olivine

Che 397 - Team Bravo


Tbe total energy balance

TBE: Total Energy Balance

Che 397 - Team Bravo


Gas clean up scrubber material balance

Gas Clean Up: ScrubberMaterial Balance

Hazardous

Materials

Sulfur

Halogens

Raw

SynGas

Raw

SynGas

Basically all incoming volatiles will be treated (place holder).

Che 397 - Team Bravo


Gas clean up reformer material balance

Gas Clean Up: ReformerMaterial Balance

Raw

SynGas

SynGas

Steam

Che 397 - Team Bravo


Reverse water gas shift material balance

Reverse Water Gas Shift: Material Balance

Reactions

CO2 + H2 CO + H2O +17,644 BTU/lbmol

SynGas

At spec.

SynGas

Che 397 - Team Bravo


Investment trend

Investment Trend

~ 595 tons/hour --> ~335 millions $

Che 397 - Team Bravo


Capital costs

Capital Costs

Che 397 - Team Bravo


Tic rdf processing

TIC RDF Processing

Total Installed Cost of Some RDF Processing Equipment

Che 397 - Team Bravo


Tic assumptions

TIC Assumptions

  • TIC breakdown

    • Purchased Equipment

    • Installation

    • Instrumentation and Controls

    • Piping

    • Electrical Systems

    • Buildings (including services)

    • Yard Improvements

  • Indirect Costs

    • Engineering

    • Construction

    • Legal and Contractors Fees

    • Project Contingency

Che 397 - Team Bravo


References

References

  • Municipal Solid Waste (MSW) to Liquid Fuels Synthesis, Volume 1: Availability of Feedstock and Technology (PNNL-18144)

  • Municipal Solid Waste (MSW) to Liquid Fuels Synthesis, Volume 2: A Techno-economic Evaluation of the Production of Mixed Alcohols (PNNL-18482)

  • www.taylorbiomassenergy.com - TBE

  • www.rentechinc.com – Rentech

  • Engineering Toolbox

  • Heats of formation: http://cccbdb.nist.gov/hf0k.asp

  • Municipal Solid waste Generation, Recycling, and Disposal in the United States: Facts and Figures for 2008 – EPA

  • Higman, Christopher and van derBurgt, Maarten. Gasification 2nd Edition. Gulf Professional Publishing. Oxford, 2008.

  • Paisley, Mark A., Corley, Ralph N. and Dayton, David C. Advanced Biomass Gasification for the Economical Production of Biopower, Fuels, and Hydrogen. Taylor Biomass Energy


Back up ash material balance

Back up: Ash Material Balance

Che 397 - Team Bravo


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