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تحقیق و طراحی مهندسی شیمی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • effects of tar model compounds on commercial water gas shift catalysts

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 645
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    • شماره تماس دبیرخانه رویداد: -
     one attractive application of the catalytic water gas shift (wgs) reaction is the production of a syn-gas with high hydrogen concentration from gasification of solid combustibles. the catalyst's behavior can be affected by the hydrocarbons with high molecular weight (tar) still present in the gas after its purification. in this work the effect of some tar model compounds on two typical commercial wgs catalysts were investigated. a low temperature catalyst composed of cu/zn/al and a high temperature catalyst based mainly on fe and cr were tested. n-hexadecane, fluorene, phenol, and octanol were used as tar model compounds. besides these compounds, the effect of biodiesel was also investigated. in all cases a concentration of 0.5 g/nm3 was used. generally it was observed that a low concentration is often sufficient to produce a rapid deactivation. catalysts were characterized by means of bet and xrd.

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