Oxycombustion in Mexico

Workshops on Carbon Capture and Storage

Instituto de Ingeniería, UNAM

March 28th – 30th

Outlook

• Oxycombustion project at the IIE,

• Characteristics of a 35 kW furnace,

• Results from oxycombustion of diesel oil,

• Future work on oxyfuel project,

Oxycombustion project at the IIE

• Construction of a 35 kW furnace,

• Oxycombustion tests of fossil fuels:

– Ignition, flame stability, flame temperature, heat transfer, unburned carbon,

• Provide technical and economical information associated to the oxyfuel technology to the Mexican Energy Sector,

Characteristics of the 35 kW oxyfuel furnace

• Horizontal firing, single burner, refractory lined and water cooled,

• Length 1.2 m and 0.4 internal diameter,

• Combustion air and gases recycled temperature up to 300 oC,

• Oxy combustion with synthetic gases,

• Oxyfuel with recycled gases,

• Recently, it was integrated a swirl generator for the burner,

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Oxycombustion 35 kW furnace

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Oxycombustion 35 kW and flue gas heater

Diagram of the 35 kW furnace

Dimensions: mm

Burner quarl

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Axial flue gas temperature profiles

0 10 20 30 40 50 60 70 80 90 100 110

Axial distance from the burner exit (cm)

0

50

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1000

1050

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1250

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1600

Ga

s tem

pera

ture

alo

ng the furn

ace (

ºC)

0

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Air combustion

Oxycombustion

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Radial flue gas temperature profiles

-18 -15 -12 -9 -6 -3 0 3 6 9 12 15 18

Distance from the central axis (cm)

0

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Radia

l flue g

as tem

pera

ture

pro

file

s (

ºC)

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1200

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Air combustion

Oxycombustion

Port 5

Port 1

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Total radiative heat flux profiles

0 10 20 30 40 50 60 70 80 90 100 110

Axial distance from the burner exit (cm)

0

50

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350

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600

Tota

l ra

dia

tive h

eat

flux (

kW

/m2)

0

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600

Air combustion

Oxycombustion

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Oxycombustion 35 kW with swirl generator

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Swirl generator for the burners

Future work in the oxyfuel project

• Oxycombustion of diesel oil, heavy fuel oil and coal,

• Assessments of ignition, flame structure and stability,

• Flame temperature and incident heat flux,

• Sulphur dioxide and trioxide formation,

• Nitrogen oxides emissions,

• Effects of gas flow recycled (dry and wet),

• Assessment of ash deposition,

• Studies on larger experimental facilities,

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Experimental furnace 350 kW capacity

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Pilot combustion furnace 1.5 MW

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Thanks so much for your

kind attention