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Tar removal from Producer Gas: A Review

Author Affiliations

  • 1 Devi Ahilaya Vishwavidhlya, Takshila Campus, Indore, INDIA

Res. J. Engineering Sci., Volume 3, Issue (10), Pages 16-22, October,26 (2014)


Gasification is the most appropriate technology for conversion of solid fuel (biomass) into a gaseous fuel, known as producer gas. Producer gas is a mixture of gases which consists of hydrogen, carbon monoxide, methane, carbon dioxide, water vapor, nitrogen, tar and suspended particulate matter. For motive applications such as internal combustion engines, the tar present in producer gas may create problem, if the tar content in the producer gas is above 50-100 mg/Nm. A tar-free gaseous fuel can be obtained in a suitably designed producer gas conditioning unit whose sole purpose is to provide clean producer gas. Gas cleaning and conditioning systems to control tar levels are being continuously modified for better efficiency and cost effectiveness. Major techniques used in tar cleaning are thermal cracking, catalytic cracking and physical removal of tar. Many a times, combination of these techniques are used for better cleaning of producer gas. The following paper critically reviews the different techniques used for collection, identification and quantification of tars in producer gas obtained from biomass.


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