An Investigation into Syngas Production Enhancement from

Municipal Solid Waste Gasification

Kelly J. Westby, Eilhann Kwon, and Marco J. Castaldi*

Department of Earth & Environmental Engineering [HKSM]

Columbia University, New York, NY 10027

Problem:1.5 billion tons of MSW

Solution:MSW gasification

Purpose of this Research: Optimize syngas production and char burn out

Main ResultsMass % vs Temp for Varius Amounts of CO2

Temperature (oC)0 200 400 600 800 1000

Mas

s %

0

20

40

60

80

100

20% CO210% CO25% CO22.5% CO2Inert1% CO2

700 750 800 850 900 950 10000

5

10

15

20

25

Area 3: petrochemical degradation

Area 4: boudouard reaction (CO2 + C 2CO)

Area 1: water

volatilization

Area 2: biomass

degradation

Conclusion

CO2 enhances char burnout

- cost and environment

> solid ash reduction

> syngas enhancement

> CO2 recycling

Effects of Communal Nesting on Offspring Social Behavior

Emily Rose JordanChampagne Psychobiology and

Neuroscience LaboratoryColumbia University

5

Tim

e sp

ent i

nves

tigati

ng (s

)