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  • Pyrolysis of rice straw with ammonium dihydrogen phosphate: properties and gaseous potassium release characteristics during combustion of the products.

    Author(s) : Li HuiHan KuiHuaWang QianLu ChunMei

    Author Affiliation : School of Energy and Power Engineering, Shandong University, 250061 Jinan, China.

    Author Email : hankh@163.com

    Journal article : Bioresource Technology 2015 Vol.197 pp.193-200 ref.35

    Abstract : The effect of ammonium dihydrogen phosphate (NH4H2PO4) on rice straw (RS) carbonization was evaluated at temperatures of 350-650°C. The carbonized products of RS with NH4H2PO4 show higher solid and energy yields, but lower higher heating values than the carbonized RS at every carbonization temperature. The optimum carbonization operation of RS with NH4H2PO4 which has a higher energy yield at a lower solid volume may be determined between 350 and 450°C, and RS with NH4H2PO4 carbonized at 450°C presents better pore properties than carbonized RS. The carbonized products of RS with NH4H2PO4 all have lower gaseous potassium release ratios than those of RS carbonized at the same temperature at combustion temperatures of 700-1000°C by retaining potassium in non-volatile phosphorus compounds with high melting points. It is an effective method for inhibiting the gaseous potassium release during combustion of the carbonized products.

    ISSN : 0960-8524

    URL : http://www.sciencedirect.com/science/...

    Record Number : 20153386346

    Publisher : Elsevier Ltd

    Location of publication : Oxford

    Country of publication : UK

    Language of text : English

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Oryza sativa

    Descriptor(s) : biomass, combustion, energy, heating, operation, pyrolysis, rice, rice straw, straw, yields

    Identifier(s) : paddy

    Broader term(s) : Oryza, Poaceae, Poales, commelinids, monocotyledons, angiosperms, Spermatophyta, plants, eukaryotes