Paper details

Title:

Sewage Sludge Gasification. Effect of the Type of Gasifying Agent

Author(s):

Gil, N., Sánchez, J.L., Murillo, M.B., Azuara, M., Gea, G.

Document(s):

Abstract:

The end use of the gas product obtained in a gasification process depends on its quality. Gasifying agent is one of the main parameters that influences both gas quality and tar formation. The influence of using three different types of gasifying agent (enriched air, steam and a mixture of steam and air) on gas composition and distribution of products has been experimentally studied in a lab­scale fluidized bed plant of sewage sludge gasification. The use of steam as gasifying agent led to a lower gas yield. However, LHV of the gas was higher and H2 formation was favored in this case. When enriched air was used as gasifying agent, gas yield was increased and tar formation was decreased; apparent thermal efficiency of this process was lower because of the smaller percentage of light hydrocarbons in the gas.

Keywords:

fluidized bed, gasification, sewage sludge, syngas

Topic:

Biomass Conversion Technologies for Heating, Electricity and Chemicals                  

Subtopic:

Gasification for synthesis gas production

Event:

19th European Biomass Conference and Exhibition

Session:

VP2.4.24

Pages:

1621 - 1624

ISBN-13:

978-88-89407-55-4

ISBN-10:

88-89407-55-7

Paper DOI:

10.5071/19thEUBCE2011-VP2.4.24

Price:

FREE