Paper details

Title:

Carbon Dioxide Capture through Biomass Gasification

Author(s):

Sandeep, K., Snehesh, S., Dasappa, S.

Document(s):

Abstract:

Gasification, a thermo­chemical process, is explored as a promising technology towards carbon capture. The present work focuses on using CO2, from a typical flue of combustion of fuels in an engine or a combustion device, as a co­reactant along with other reacting media. Experiments were conducted with CO2 volume fraction varied from 0 to 15% in a mixture of O2 and N2. Increase in CO2 fraction resulted in decrease in bed temperature, primarily due to reduction in O2 fraction, in the gasifying medium, and the endothermic reaction of char and CO2. Low bed temperature was addressed by maintaining the O2 volume fraction in the input at 21% by introducing additional oxygen. At 15% CO2 injection, the CO fraction increased from 13.1% to 16.3% and over 55% of the input CO2 conversion was noted. Recorded an increase in cold gas efficiency by 30% owing to higher conversion rate of char. Working with the engine exhaust also eliminates the cost incurred in separation of CO2 and makes the system less complicated.

Keywords:

CO2 capture, CO2 emission, CO2 reduction, gasification

Topic:

Biomass Conversion Technologies for Heating, Electricity and Chemicals                  

Subtopic:

CO2 issues and special fuels for gasification to syngas

Event:

19th European Biomass Conference and Exhibition

Session:

OB5.2

Pages:

1127 - 1133

ISBN-13:

978-88-89407-55-4

ISBN-10:

88-89407-55-7

Paper DOI:

10.5071/19thEUBCE2011-OB5.2

Price:

FREE