该文采用离散元素法DEM模型对二维L型定向风帽流化床中的气-固流动特性进行模拟。
DEM (Discrete Element Method) is used to simulate the gas-solid flow of a two-dimension fluidized bed with L-type wind caps in this paper.
为了对颗粒表面进行改性，在自行设计组装的流化床反应器中，利用化学气相沉积法(CVD)制备了不同的复合颗粒。
In order to modify the surface properties of the particles, composite particles are prepared by the process of Chemical Vapor Deposition (CVD) in a fluidized bed reactor.
因此，气相色谱法用于流化床部分煤气化煤气组分分析具有快速、经济、灵敏、准确、重现性好的优点。
The method of gas chromatography is rapid, economical, accurate and suitable for determine the components of coal gas from fluidized bed partial gasification of coal.
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