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Syngas cleaning with nano-structured micro-porous ion exchange polymers in biomass gasification using a novel downdraft gasifier

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Journal of Energy Chemistry 2013年第3期22卷 426-435页

作者： Galip Akay C.Andrea Jordan Abdulaziz H.Mohamed Process Intensification and Miniaturization Centre School of Chemical Engineering and Advanced MaterialsNewcastle UniversityNewcastle upon TyneNE1 7RUUK ITI Energy Limited Advanced Manufacturing ParkBrunel WayRotherham S60 5WGUK

Sulphonated nano-structured micro-porous ion exchange polymers, known as sulphonated polyhipe polymers （s-PHPs） were used in syngas cleaning to investigate their impact on tar composition, concentration and dew point depression during the gasification of fuel cane bagasse as a model biomass. The results showed that the s-PHPs used as a secondary syngas treatment system, was highly effective at adsorbing and reducing the concentration of all class of tars in syngas by 95%-80% which resulted in tar dew point depression from 90 ~C to 73 ~C. It was shown that tars underwent chemical reactions within s-PHPs, indicating that tar diffusion from syngas was driven by chemical potential. It was also observed that s-PHPs also captured ash forming elements from syngas. The use of s-PHPs in gasification as well as in an integrated thermochemical biorefinery technology is discussed since the tar loaded s-PHPs can be used as natural herbicides in the form of soil additives to enhance the biomass growth and crop yield.

关键词： biorefinery biomass downdraft gasifier gasification polyhipe polymer syngas cleaning tar removal

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