Advantages of Gasification over Combustion

The particulates in the raw syngas is also significantly reduced due to multiple gas cleanup systems used to meet gas turbine manufacturers specifications. Particulate removal 

A second major advantage is that furan and dioxin compounds are not formed during gasification. Combustion of organic matter is a major source of these highly toxic and carcinogenic pollutants. The reasons why furans and dioxins are not formed in gasification are  

The lack of oxygen in the reducing environment of the gasifier prevents formation of free chlorine from HC1 and limits chlorination of any precursor compounds in the gasifier 

High temperature of gasification processes effectively destroys any furan or dioxin precursors in the feed 

Furthermore, if the syngas is combusted in a gas turbine where excess oxygen is present, the high combustion temperature does not favor formation of free chlorine. In addition, post-combustion formation of dioxin or furan is not expected to occur because very little of the particulates that are required for post-combustion formation of these compounds are present in the flue gas. 

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