02 Emulsification - Experiment#02 Emulsification of diesel...

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Experiment #02 Emulsification of diesel and bio-oil from biomass pyrolysis Professor Wei-Hsin Chen - - 1
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1. Introduction Pyrolysis is one of the thermochemical methods where biomass is thermally degraded to produce biofuels in the absence of oxidant or in a nitrogen environment. The operating temperature of pyrolysis is normally between 400 and 800 °C. Biochar, bio-oils and non-condensable gases are three major products from biomass pyrolysis. The bio-oil is a mixture of about 200 types of major and minor organic compounds. The bio-oil is potentially a valuable liquid fuel because it can be used as the source of some pure chemicals. Bio-oils have also been tested as an alternative wood preservative because it contains a considerable amount of phenolic compounds. Moreover, bio-oils have some advantages in transport, storage, combustion, retrofitting and flexibility in production and marketing [1,2]. In order to promote the application of bio-oil as a combustion fuel, there are several methods to upgrade the bio-oil, such as hydrogenation, catalyzed cracking, and esterification. Compared to tha above methods, emulsification is a easier, cheaper and convenient method for upgrading the bio-oil. Emulsification involves two immiscible liquids in which droplets of one
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