Dear Rex

----- Original Message ----- From: "Rex Zietsman" <[email protected]>
To: <[email protected]>
Sent: Friday, November 29, 2013 4:18 AM
Subject: [Gasification] Fluidised bed reactor


Kevin,

What you say is correct. However, there is benefit in returning some exhaust back to gasification as you force a higher production of CO relative to CO2
production. I suspect it is an equilibrium thing...

# For a gasifier having a relatively high exit temperature, then engine exhaust additions to the gasifier intake air could indeed be a way to both lower the gasifier exit temperature, and to raise the CO level.

There is a CO/CO2 equilibrium consideration, and also a kinetics or "speed of reaction" consideration.

Best wishes,

Kevin

Rex


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