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快速流化床出口结构形式对床层特性的影响 被引量:1
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作者 金涌 俞芷青 +1 位作者 祁春鸣 白丁荣 《石油化工》 CAS CSCD 北大核心 1989年第2期86-92,共7页
本文对快速流化床出口结构形式对床层轴向空隙率分布的影响进行了测试,研究结果表明,出口结构形式对床层轴向空隙率分布有明显的影响。在出口结构形式对两相流动约束作用较弱时,快速流化床中轴向空隙率呈上稀下浓形式;当出口结构形式对... 本文对快速流化床出口结构形式对床层轴向空隙率分布的影响进行了测试,研究结果表明,出口结构形式对床层轴向空隙率分布有明显的影响。在出口结构形式对两相流动约束作用较弱时,快速流化床中轴向空隙率呈上稀下浓形式;当出口结构形式对两相流动具有强烈约束作用时,床层中轴向空隙率分布明显改变。 展开更多
关键词 流化床 出口结构 床层性能 反应器
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Growth of Hierarchically Structured High-Surface Area Alumina on FeCralloy~ Rods 被引量:1
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作者 C.Rallan A.Garforth 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2014年第8期861-868,共8页
The formation of metastable alumina phases due to the oxidation of commercial FeCralloy(R) rods (0.5 mm thickness) at various temperatures and time periods has been examined. This structured layer acts as an ancho... The formation of metastable alumina phases due to the oxidation of commercial FeCralloy(R) rods (0.5 mm thickness) at various temperatures and time periods has been examined. This structured layer acts as an anchor to bind additional coatings of alumina via wash-coat techniques, thereby improving the layer thickness and increasing adhesion of the catalytic surface. Optimisation of the layer thickness and catalytic properties were conducted, using a range of analytical systems [scanning electron microscope (SEM), energy dispersive X-ray (EDX) and X-ray diffraction (XRD)]. The modified FeCralloy(R) rods were tested in a fixed bed reactor rig to assess the impact on yield for the dehydrogenation of methylcyclohexane. 展开更多
关键词 FOIL γ-AluminaCatalytic SUPPORT Packed bed reactor Metal support
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